RFC 5643
Management Information Base for OSPFv3
RFC 5643: Management Information Base for OSPFv3 💖
Okay bestie, RFC 5643 is all about the Management Information Base (MIB) for OSPFv3, the version of OSPF that runs on IPv6 🦋. It's a Standards Track document from August 2009. The lead editors are D. Joyal (Nortel) and V. Manral (IP Infusion), and both are marked as Ed. (editor). The title block doesn't list anything it obsoletes or updates, so this one stands on its own ✨.
Abstract ✨
Okay so this memo defines a chunk of the MIB for network management protocols in IPv6-based internets. The main thing it does is define objects for managing OSPF for IPv6, which is also called OSPF version 3 (OSPFv3). It's giving "manage your routing from one place" energy 🌸.
Status of This Memo 📝
This document specifies an Internet standards track protocol for the Internet community, and it asks for discussion and suggestions for improvements 🫶. For the standardization state and status of this protocol, check the current edition of the "Internet Official Protocol Standards" (STD 1). Distribution of this memo is unlimited 💅.
Copyright Notice ⚖️
Copyright (c) 2009 IETF Trust and the persons identified as the document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents, as they were in effect on the date this document was published (http://trustee.ietf.org/license-info). Please read these documents carefully, because they describe your rights and restrictions for this document 👀.
This document may include material from IETF Documents or IETF Contributions that were published or made publicly available before November 10, 2008. The people who control the copyright in some of that material may not have given the IETF Trust permission to allow modifications outside the IETF Standards Process. Without an adequate license from those copyright holders, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process. The only exceptions are formatting it for publication as an RFC and translating it into languages other than English 🌈.
Table of Contents 📚
1. The Internet-Standard Management Framework ......................3
2. Overview ........................................................3
2.1. IPv6 Interfaces ............................................3
2.2. Addressing Semantics .......................................4
2.3. Authentication .............................................4
2.4. Type of Service ............................................4
2.5. Flooding Scope .............................................4
2.6. Virtual Links ..............................................4
2.7. Neighbors ..................................................5
2.8. OSPFv3 Counters ............................................5
2.9. Multiple OSPFv3 Instances ..................................5
2.10. Notifications .............................................5
2.11. Conventions ...............................................6
3. OSPFv3 Notification Overview ....................................6
3.1. Introduction ...............................................6
3.2. Ignoring Initial Activity ..................................6
3.3. Throttling Notifications ...................................6
3.4. One Notification per OSPFv3 Event ..........................7
3.5. Polling Event Counters .....................................7
4. Structure of the OSPFv3 MIB Module ..............................7
4.1. General Variables ..........................................8
4.2. Area Table .................................................8
4.3. Area-Scope, Link-Scope, and AS-Scope Link State Database ...8
4.4. Host Table .................................................8
4.5. Interface Table ............................................8
4.6. Virtual Interface Table ....................................8
4.7. Neighbor, Configured Neighbor, and Virtual Neighbor
Tables .....................................................8
4.8. Area Aggregate Table .......................................8
4.9. Notifications ..............................................9
5. Definitions .....................................................9
6. Security Considerations ........................................92
7. IANA Considerations ............................................93
8. Acknowledgements ...............................................93
9. References .....................................................93
9.1. Normative References ......................................93
9.2. Informative References ....................................941. The Internet-Standard Management Framework ✨
Okay so if you want the full tour of the documents that describe the current Internet-Standard Management Framework, check section 7 of RFC 3410 [RFC3410] 🗺️.
Managed objects are accessed through a virtual information store called the Management Information Base, or MIB 🗄️. Most MIB objects get accessed through the Simple Network Management Protocol (SNMP). Objects in the MIB are defined with the mechanisms in the Structure of Management Information (SMI). This memo specifies a MIB module that is compliant with SMIv2, which is described in STD 58, RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580 [RFC2580]. Main character energy 👑.
2. Overview 🌸
This memo defines a portion of the MIB for managing the Open Shortest Path First Routing Protocol for IPv6 [RFC5340], otherwise known as OSPF version 3 (OSPFv3). The fundamental mechanisms of OSPF version 2 (OSPFv2) [RFC2328] stay the same in OSPFv3, but some things had to change because IP address sizes and protocol semantics differ between IPv4 and IPv6 🦋. Where the protocol operations haven't changed from OSPFv2, the OSPFv3 specification doesn't restate the details. It just points to the relevant sections of the OSPFv2 specification. This MIB module follows the same approach and includes Reference clauses that refer to the OSPFv2 specification when they apply 💅.
2.1. IPv6 Interfaces 🔌
IPv6 interfaces attach to links [RFC2460]. A link is roughly defined as the layer below IPv6, like Ethernet or an IPv4 tunnel. One or more IPv6 prefixes can be associated with an IPv6 interface. You can configure IPv6 interfaces and their prefixes through the IP-MIB [RFC4293]. IPv6 interfaces live in the IPv6 Interface Table, and IPv6 prefixes live in the Internet Address Prefix Table. Each IPv6 interface gets identified by a unique index value, and IPv6 Address Prefix Table entries tied to an interface reference that interface's index 🧚.
Here's the difference that matters. In OSPFv2, an Interface Identifier is a local IPv4 address or a MIB-2 interface index. In OSPFv3, an Interface Identifier is an IPv6 interface index 🎀. For example, the index value of an OSPFv3 Interface Table entry is the IPv6 interface index of the IPv6 interface that OSPFv3 is configured to run on.
2.2. Addressing Semantics 🏷️
Router ID, Area ID, and Link State ID stay at the OSPFv2 size of 32 bits. To keep things unique, a router running IPv4 and IPv6 at the same time can keep using a local IPv4 host address, represented as an unsigned 32-bit value, as its OSPFv3 Router ID. Otherwise, the Router ID has to be picked another way (for example, administratively assigned) 🫶.
Router ID, Area ID, and Link State ID don't have addressing semantics in OSPFv3, so their syntax changes to Unsigned32. The Router ID index component comes before the Link State ID index component in the OSPFv3 MIB module. That's because Link State IDs don't carry addressing semantics, which makes them less unique identifiers than the Router ID. It's more useful to do partial Object Identifier (OID) lookups that extend to the Router ID instead of the Link State ID 🔍.
2.3. Authentication 🔐
In OSPFv3, authentication has been removed from the protocol itself. The MIB objects related to authentication didn't get carried forward from the OSPFv2 MIB module 🙅♀️.
2.4. Type of Service 🚦
The OSPFv2 MIB module objects related to Type of Service (ToS) didn't get carried forward to the OSPFv3 MIB module 💀.
2.5. Flooding Scope 🌊
Flooding scope for link state advertisements (LSAs) got generalized, and it's now explicitly encoded in the LSA's LS type field. The action to take when you receive an unknown LSA type is also encoded in the LS type field [RFC5340]. The OSPFv3 MIB module defines three Link State Database tables: one for Area-scope LSAs, one for Link-scope LSAs, and one for Autonomous System (AS)-scope LSAs 🗂️.
2.6. Virtual Links 🔗
Addressing semantics got removed from router-LSAs in OSPFv3. That means virtual links now need to be assigned an Interface ID so they can be advertised in Hello packets and in router-LSAs. A read-only object has been added to the Virtual Interface Table entry so you can view the assigned Interface ID 👀.
2.7. Neighbors 🤝
The OSPFv3 Neighbor Table is read-only. It holds information learned from Hellos received from neighbors, including configured neighbors. The OSPFv3 Configured Neighbor Table holds entries for manually configured neighbors, which are used on non-broadcast multi-access (NBMA) and Point-to-Multipoint interface types 🌈.
2.8. OSPFv3 Counters 🔢
This MIB module defines several counters, namely:
ospfv3OriginateNewLsasandospfv3RxNewLsasin theospfv3GeneralGroupospfv3AreaSpfRunsandospfv3AreaNssaTranslatorEventsin theospfv3AreaTableospfv3IfEventsin theospfv3IfTableospfv3VirtIfEventsin theospfv3VirtIfTableospfv3NbrEventsin theospfv3NbrTableospfv3VirtNbrEventsin theospfv3VirtNbrTable
As a best practice, a management entity should use the discontinuity object, ospfv3DiscontinuityTime, when it reads these counters. That tells it whether an event happened that would make its understanding of the counters invalid. A restart of the OSPFv3 routing process is an example of a discontinuity event 🔄.
2.9. Multiple OSPFv3 Instances 🧩
SNMPv3 supports "contexts," which can be used to set up MIB views on multiple OSPFv3 instances on the same system. See [RFC3411] or its successors for details 🪞.
2.10. Notifications 🔔
Notifications define a set of notifications, objects, and mechanisms that improve your ability to manage IP internetworks using OSPFv3 as their Interior Gateway Protocol (IGP) ✨.
2.11. Conventions 📖
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119 [RFC2119]. Those are the official BCP 14 words, so read them carefully 💜.
3.1. Introduction
okay so OSPFv3 is totally event-driven 🧚 an event can be a change in an OSPFv3 interface's link-level status, an OSPFv3 timer going off, or a received OSPFv3 protocol packet ✨ and a lot of what OSPFv3 does after one of these events ends up changing the routing topology 🌸
as routing topologies get big and messy, it's honestly so hard to figure out where a topology change or a weird routing path came from if you have to poll a huge number of routers 😭 polling tons of devices is a lot, so the more prudent move is for devices to tell a network manager about potentially critical OSPF events using SNMP notifications 🔔
the ospfv3NotificationEnable object gives you a coarse level of control over OSPFv3 notifications 🎀 you can use it to fully turn notification generation on or off 💅 if you want fine-grain control over individual notifications, that's done with the objects defined in RFC 3413 [RFC3413], specifically the ones described in Section 6 💜
3.2. Ignoring Initial Activity
the majority of critical events happen when OSPFv3 gets enabled on a router 🌈 that's when the Designated Router gets elected and neighbor adjacencies form ✨ during that early period, a big flood of notifications is unnecessary because those events are expected 🙈 so to avoid pointless notifications, a router should not originate expected OSPFv3 interface-related notifications until two of that interface's dead timer intervals have elapsed ⏳ the expected OSPFv3 interface notifications are ospfv3IfStateChange, ospfv3VirtIfStateChange, ospfv3NbrStateChange, and ospfv3VirtNbrStateChange 🦋
3.3. Throttling Notifications
the throttling mechanism is similar to the one explained in RFC 1224 [RFC1224] 🍓 the main idea is a sliding window, defined in seconds, with an upper bound on how many notifications may be generated inside that window 🪟 fun fact, unlike RFC 1224, notifications are not sent to tell the network manager that the throttling mechanism has kicked in 🙊
a single window should be used to throttle all OSPFv3 notification types, except ospfv3LsdbOverflow and ospfv3LsdbApproachingOverflow, which should not be throttled 🚫 for example, say the window time is 3 and the upper bound is 3, and events cause notifications 1, 2, 3, and 4 (that's 4 notifications within a 3-second period) 😤 then the 4th notification should not be generated 💀
appropriate values are 7 notifications with a window time of 10 seconds 💖
3.4. One Notification per OSPFv3 Event
a bunch of the notifications in this MIB module get generated when a router finds something unusual while parsing an OSPFv3 packet or handling a timer event 👀 and there can be more than one unusual condition in a single event ✨ for example, a Link State Update packet might contain several retransmitted link state advertisements (LSAs), or a retransmitted database description packet might contain several database description entries 📦 so to keep the number of notifications and variables under control, OSPFv3 should generate at most one notification per OSPFv3 event 🫶 only the variables tied to the first unusual condition should go along with that notification 💅 and if more than one type of unusual condition shows up while parsing the packet, only the first event will generate a notification 👑
3.5. Polling Event Counters
a lot of the tables in the OSPFv3 MIB module have generalized event counters 🔢 by turning on the notifications defined in this document, a network manager can get more specific info about those events 🕵️♀️ a network manager might want to poll those counters and enable OSPFv3 notifications when a particular counter starts climbing abnormally 📈 literally the perfect early-warning system 🥹
4. Structure of the OSPFv3 MIB Module ✨
the MIB is made up of the following sections 🗂️
General Variables
Area Table
Area-Scope Link State Database
Link-Scope Link State Databases (non-virtual and virtual)
AS-Scope Link State Database
Host Table
Interface Table
Virtual Interface Table
Neighbor Table
Configured Neighbor Table
Virtual Neighbor Table
Area Aggregate Table
Notifications4.1. General Variables
the General Variables are global to the OSPFv3 Process 🌍
4.2. Area Table
the Area Data Structure describes the OSPFv3 Areas that the router participates in 🏘️
4.3. Area-Scope, Link-Scope, and AS-Scope Link State Database
the link state databases are mainly there to give you detailed info for network debugging 🔍 there are separate tables for Link-scope LSAs received over non-virtual interfaces and over virtual interfaces 🧩
4.4. Host Table
the Host Table is there so you can view configured Host Route information 👀
4.5. Interface Table
the Interface Table describes the various IPv6 links where OSPFv3 is configured 🔗
4.6. Virtual Interface Table
the Virtual Interface Table describes virtual OSPFv3 links 🌀
4.7. Neighbor, Configured Neighbor, and Virtual Neighbor Tables
the Neighbor Table, the Configured Neighbor Table, and the Virtual Neighbor Table all describe the neighbors of the OSPFv3 Process 🤝
4.8. Area Aggregate Table
the Area Aggregate Table describes prefixes that summarize routing information for export outside of an Area 📦✨
4.9. Notifications
notifications are defined for OSPFv3 events 🔔 several objects are defined specifically to be used as variables with notifications 💜
5. Definitions 💅
OSPFV3-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE, mib-2,
Counter32, Gauge32, Integer32, Unsigned32
FROM SNMPv2-SMI
TEXTUAL-CONVENTION, TruthValue, RowStatus, TimeStamp
FROM SNMPv2-TC
MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
FROM SNMPv2-CONF
InterfaceIndex
FROM IF-MIB
InetAddressType, InetAddress, InetAddressPrefixLength,
InetAddressIPv6
FROM INET-ADDRESS-MIB
Metric, BigMetric, Status,
HelloRange, DesignatedRouterPriority
FROM OSPF-MIB;
ospfv3MIB MODULE-IDENTITY
LAST-UPDATED "200908130000Z"
ORGANIZATION "IETF OSPF Working Group"
CONTACT-INFO
"WG E-Mail: ospf@ietf.org
WG Chairs: Acee Lindem
acee@redback.com
Abhay Roy
akr@cisco.com
Editors: Dan Joyal
Nortel
600 Technology Park Drive
Billerica, MA 01821, USA
djoyal@nortel.com
Vishwas Manral
IP Infusion
Almora, Uttarakhand
India
vishwas@ipinfusion.com"
DESCRIPTION
"The MIB module for OSPF version 3.
Copyright (c) 2009 IETF Trust and the persons
identified as authors of the code. All rights
reserved.
Redistribution and use in source and binary forms, with
or without modification, are permitted provided that
the following conditions are met:
- Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
- Redistributions in binary form must reproduce the
above copyright notice, this list of conditions and
the following disclaimer in the documentation and/or
other materials provided with the distribution.
- Neither the name of Internet Society, IETF or IETF
Trust, nor the names of specific contributors, may be
used to endorse or promote products derived from this
software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS 'AS IS' AND ANY EXPRESS OR IMPLIED
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
This version of this MIB module is part of RFC 5643;
see the RFC itself for full legal notices."
REVISION "200908130000Z"
DESCRIPTION
"Initial version, published as RFC 5643"
::= { mib-2 191 }
-- Textual conventions
Ospfv3UpToRefreshIntervalTC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The values one might be able to configure for
variables bounded by the Refresh Interval."
REFERENCE
"OSPF Version 2, Appendix B, Architectural Constants"
SYNTAX Unsigned32 (1..1800)
Ospfv3DeadIntervalRangeTC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The range, in seconds, of dead interval value."
REFERENCE
"OSPF for IPv6, Appendix C.3, Router Interface
Parameters"
SYNTAX Unsigned32 (1..'FFFF'h)
Ospfv3RouterIdTC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"A 32-bit, unsigned integer uniquely identifying the
router in the Autonomous System. To ensure
uniqueness, this may default to the value of one of
the router's IPv4 host addresses if IPv4 is
configured on the router."
REFERENCE
"OSPF for IPv6, Appendix C.1, Global Parameters"
SYNTAX Unsigned32 (1..'FFFFFFFF'h)
Ospfv3LsIdTC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"A unique 32-bit identifier of the piece of the
routing domain that is being described by a link
state advertisement. In contrast to OSPFv2, the
Link State ID (LSID) has no addressing semantics."
REFERENCE
"OSPF Version 2, Section 12.1.4, Link State ID"
SYNTAX Unsigned32 (1..'FFFFFFFF'h)
Ospfv3AreaIdTC ::= TEXTUAL-CONVENTION DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"An OSPFv3 Area Identifier. A value of zero
identifies the backbone area."
REFERENCE
"OSPF for IPv6, Appendix C.3 Router Interface
Parameters"
SYNTAX Unsigned32 (0..'FFFFFFFF'h)
Ospfv3IfInstIdTC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"An OSPFv3 Interface Instance ID."
REFERENCE
"OSPF for IPv6, Appendix C.3, Router Interface
Parameters"
SYNTAX Unsigned32 (0..255)Okay so the Area ID and Interface Instance ID textual conventions are wrapping up here, and the area one is literally just "0 means backbone" 🌸 Simple but iconic. Interface Instance IDs are 0 to 255, which is giving very specific, very contained energy 🦋
Ospfv3LsaSequenceTC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The sequence number field is a signed 32-bit
integer. It is used to detect old and duplicate
link state advertisements. The space of
sequence numbers is linearly ordered. The
larger the sequence number, the more recent the
advertisement."
REFERENCE
"OSPF Version 2, Section 12.1.6, LS sequence
number"
SYNTAX Integer32
Ospfv3LsaAgeTC ::= TEXTUAL-CONVENTION
DISPLAY-HINT "d"
STATUS current
DESCRIPTION
"The age of the link state advertisement in
seconds. The high-order bit of the LS age
field is considered the DoNotAge bit for
support of on-demand circuits."
REFERENCE
"OSPF Version 2, Section 12.1.1, LS age;
Extending OSPF to Support Demand Circuits,
Section 2.2, The LS age field"
SYNTAX Unsigned32 (0..3600 | 32768..36368)Bestie, the LS sequence number is a signed 32-bit integer, and the bigger it is, the newer the advertisement. That's the whole vibe: higher number, fresher tea ☕ ✨ The LS age one is the main character 👑 Its high-order bit is the DoNotAge flag, which is there for on-demand circuits, so it's literally a bit doing double duty. Ngl that's so efficient 💅
-- Top-level structure of MIB
ospfv3Notifications OBJECT IDENTIFIER ::= { ospfv3MIB 0 }
ospfv3Objects OBJECT IDENTIFIER ::= { ospfv3MIB 1 }
ospfv3Conformance OBJECT IDENTIFIER ::= { ospfv3MIB 2 }
-- OSPFv3 General Variables
-- These parameters apply globally to the Router's
-- OSPFv3 Process.
ospfv3GeneralGroup OBJECT IDENTIFIER ::= { ospfv3Objects 1 }Okay so here's the top-level layout 🧚 The MIB splits into three branches: notifications, objects, and conformance. The general group lives under objects, and everything in it applies to the router's whole OSPFv3 process, not just one interface. Very big-picture, very "I run the whole show" 👑🎀
ospfv3RouterId OBJECT-TYPE
SYNTAX Ospfv3RouterIdTC
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A 32-bit unsigned integer uniquely identifying
the router in the Autonomous System. To ensure
uniqueness, this may default to the 32-bit
unsigned integer representation of one of
the router's IPv4 interface addresses (if IPv4
is configured on the router).
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
REFERENCE
"OSPF for IPv6, Appendix C.1, Global Parameters"
::= { ospfv3GeneralGroup 1 }
ospfv3AdminStatus OBJECT-TYPE
SYNTAX Status
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The administrative status of OSPFv3 in the
router. The value 'enabled' denotes that the
OSPFv3 Process is active on at least one
interface; 'disabled' disables it on all
interfaces.
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
::= { ospfv3GeneralGroup 2 }
ospfv3VersionNumber OBJECT-TYPE
SYNTAX INTEGER { version3 (3) }
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The version number of OSPF for IPv6 is 3."
::= { ospfv3GeneralGroup 3 }
ospfv3AreaBdrRtrStatus OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A flag to denote whether this router is an area
border router. The value of this object is true (1)
when the router is an area border router."
REFERENCE
"OSPF Version 2, Section 3, Splitting the AS into
Areas"
::= { ospfv3GeneralGroup 4 }
ospfv3ASBdrRtrStatus OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"A flag to note whether this router is
configured as an Autonomous System border router.
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
REFERENCE
"OSPF Version 2, Section 3.3, Classification of
routers"
::= { ospfv3GeneralGroup 5 }Okay the Router ID is a 32-bit unsigned integer that uniquely names the router in the Autonomous System, and it can default to one of the router's IPv4 addresses if IPv4 is on 🦋 It's persistent, so when you write to it, the entity saves that change to non-volatile storage. Same deal for the AS border router flag, which is read-write and also persistent 💖
The admin status is giving on/off energy. "Enabled" means OSPFv3 is active on at least one interface, and "disabled" turns it off everywhere. The version number is just 3, no cap, because that's OSPF for IPv6 🌈 The area border router flag is read-only, and it's true (1) when the router is an area border router. Simple, iconic 💅
ospfv3AsScopeLsaCount OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of AS-scope (e.g., AS-External) link state
advertisements in the link state database."
::= { ospfv3GeneralGroup 6 }
ospfv3AsScopeLsaCksumSum OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 32-bit unsigned sum of the LS checksums of
the AS-scoped link state advertisements
contained in the link state database. This sum
can be used to determine if there has been a
change in a router's link state database or
to compare the link state database of two
routers."
::= { ospfv3GeneralGroup 7 }
ospfv3OriginateNewLsas OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of new link state advertisements
that have been originated. This number is
incremented each time the router originates a new
LSA.
Discontinuities in the value of this counter
can occur at re-initialization of the management
system and at other times as indicated by the
value of ospfv3DiscontinuityTime."
::= { ospfv3GeneralGroup 8 }
ospfv3RxNewLsas OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of link state advertisements
received that are determined to be new
instantiations. This number does not include
newer instantiations of self-originated link state
advertisements.
Discontinuities in the value of this counter
can occur at re-initialization of the management
system and at other times as indicated by the
value of ospfv3DiscontinuityTime."
::= { ospfv3GeneralGroup 9 }
ospfv3ExtLsaCount OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of External (LS type 0x4005) in the
link state database."
::= { ospfv3GeneralGroup 10 }Bestie, the AS-scope LSA count tells you how many AS-scope advertisements (like AS-External ones) are sitting in your link state database 📚 The checksum sum is a 32-bit unsigned sum of those LS checksums. It's a quick way to see if the database changed or to compare two routers' databases, which is lowkey genius 🧠✨
The originate and receive counters are both Counter32s. Originate goes up every time the router creates a new LSA, and receive counts new instantiations from others, not including newer copies of its own LSAs 🫶 Both can reset at re-initialization or whenever ospfv3DiscontinuityTime says so.
The external LSA count is a Gauge32 for External (LS type 0x4005) entries in the database, so that's another "how full is my tea cup" metric 🍓
ospfv3ExtAreaLsdbLimit OBJECT-TYPE
SYNTAX Integer32 (-1..'7FFFFFFF'h)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The maximum number of non-default
AS-external-LSA entries that can be stored in the
link state database. If the value is -1, then
there is no limit.
When the number of non-default AS-external-LSAs
in a router's link state database reaches
ospfv3ExtAreaLsdbLimit, the router enters Overflow
state. The router never holds more than
ospfv3ExtAreaLsdbLimit non-default AS-external-LSAs
in its database. ospfv3ExtAreaLsdbLimit MUST be set
identically in all routers attached to the OSPFv3
backbone and/or any regular OSPFv3 area (i.e.,
OSPFv3 stub areas and not-so-stubby-areas (NSSAs)
are excluded).
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
::= { ospfv3GeneralGroup 11 }
ospfv3ExitOverflowInterval OBJECT-TYPE
SYNTAX Unsigned32
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The number of seconds that, after entering
Overflow state, a router will attempt to leave
Overflow state. This allows the router to again
originate non-default, AS-External-LSAs. When
set to 0, the router will not leave Overflow
state until restarted.
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
::= { ospfv3GeneralGroup 12 }Heads up, this one is a big deal 🚨 The external LSA limit caps how many non-default AS-external-LSA entries can live in the database. The value -1 means no limit at all. When you hit the limit, the router enters Overflow state and never holds more than that many. Also, this limit has to be set identically on every router attached to the OSPFv3 backbone and any regular OSPFv3 area, but stub areas and NSSAs are excluded from that rule 💀
The exit overflow interval is how many seconds a router waits after entering Overflow state before trying to leave it, which lets it originate non-default AS-External-LSAs again 🦋 If you set it to 0, the router stays in Overflow until it's restarted. Very dramatic, very committed 🙈
ospfv3DemandExtensions OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The router's support for demand circuits.
The value of this object is true (1) when
demand circuits are supported.
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
REFERENCE
"OSPF Version 2; Extending OSPF to Support Demand
Circuits"
::= { ospfv3GeneralGroup 13 }
ospfv3ReferenceBandwidth OBJECT-TYPE
SYNTAX Unsigned32
UNITS "kilobits per second"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Reference bandwidth in kilobits per second for
calculating default interface metrics. The
default value is 100,000 KBPS (100 MBPS).
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
REFERENCE
"OSPF Version 2, Appendix C.3, Router interface
parameters"
DEFVAL { 100000 }
::= { ospfv3GeneralGroup 14 }
ospfv3RestartSupport OBJECT-TYPE
SYNTAX INTEGER { none(1),
plannedOnly(2),
plannedAndUnplanned(3)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"The router's support for OSPF graceful restart.
Options include no restart support, only planned
restarts, or both planned and unplanned restarts.Okay the demand extensions object is a yes/no for whether the router supports demand circuits, and it's read-write and persistent 🎀 Then the reference bandwidth is the number used to work out default interface metrics, measured in kilobits per second. The default is 100,000 KBPS, which is 100 MBPS 🌈 It's also persistent, so writes stick around ✨
And the graceful restart support object is giving three options: none, planned restarts only, or both planned and unplanned restarts. I'm literally obsessed with how clean that enum is 😭🫶
Okay bestie, picking up right where we left off 💖
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
REFERENCE "Graceful OSPF Restart, Appendix B.1, Global
Parameters (Minimum subset)"
::= { ospfv3GeneralGroup 15 }
ospfv3RestartInterval OBJECT-TYPE
SYNTAX Ospfv3UpToRefreshIntervalTC
UNITS "seconds"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Configured OSPF graceful restart timeout interval.
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
REFERENCE "Graceful OSPF Restart, Appendix B.1, Global
Parameters (Minimum subset)"
DEFVAL { 120 }
::= { ospfv3GeneralGroup 16 }
ospfv3RestartStrictLsaChecking OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Indicates if strict LSA checking is enabled for
graceful restart. A value of true (1) indicates that
strict LSA checking is enabled.
This object is persistent, and when written,
the entity SHOULD save the change to non-volatile
storage."
REFERENCE "Graceful OSPF Restart, Appendix B.2, Global
Parameters (Optional)"
DEFVAL { true }
::= { ospfv3GeneralGroup 17 }
ospfv3RestartStatus OBJECT-TYPE
SYNTAX INTEGER { notRestarting(1),
plannedRestart(2),
unplannedRestart(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current status of OSPF graceful restart capability."
::= { ospfv3GeneralGroup 18 }
ospfv3RestartAge OBJECT-TYPE
SYNTAX Ospfv3UpToRefreshIntervalTC
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Remaining time in the current OSPF graceful restart
interval."
::= { ospfv3GeneralGroup 19 }
ospfv3RestartExitReason OBJECT-TYPE
SYNTAX INTEGER { none(1),
inProgress(2),
completed(3),
timedOut(4),
topologyChanged(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Describes the outcome of the last attempt at a
graceful restart.
none: no restart has yet been attempted.
inProgress: a restart attempt is currently underway.
completed: the last restart completed successfully.
timedOut: the last restart timed out.
topologyChanged: the last restart was aborted due to
a topology change."
::= { ospfv3GeneralGroup 20 }
ospfv3NotificationEnable OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object provides a coarse level of control
over the generation of OSPFv3 notifications.
If this object is set to true (1), then it enables
the generation of OSPFv3 notifications. If it is
set to false (2), these notifications are not
generated.
This object is persistent, and when written, the
entity SHOULD save the change to non-volatile
storage."
::= { ospfv3GeneralGroup 21 }
ospfv3StubRouterSupport OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The router's support for stub router functionality. An
object value of true (1) indicates that stub router
functionality is supported."
REFERENCE
"OSPF Stub Router Advertisement"
::= { ospfv3GeneralGroup 22 }
ospfv3StubRouterAdvertisement OBJECT-TYPE
SYNTAX INTEGER {
doNotAdvertise(1),
advertise(2)
}
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"This object controls the advertisement of
stub LSAs by the router. The value
doNotAdvertise (1) will result in the advertisement
of standard LSAs and is the default value.
This object is persistent, and when written,
the entity SHOULD save the change to non-volatile
storage."
REFERENCE
"OSPF Stub Router Advertisement, Section 2, Proposed
Solution"
DEFVAL { doNotAdvertise }
::= { ospfv3GeneralGroup 23 }
ospfv3DiscontinuityTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion
at which any one of this MIB's counters suffered
a discontinuity.
If no such discontinuities have occurred since the last
re-initialization of the local management subsystem,
then this object contains a zero value."
::= { ospfv3GeneralGroup 24 }
ospfv3RestartTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion
at which the ospfv3RestartExitReason was updated."
::= { ospfv3GeneralGroup 25 }
-- The OSPFv3 Area Data Structure contains information
-- regarding the various areas. The interfaces and
-- virtual links are configured as part of these areas.
-- Area 0, by definition, is the backbone area.
ospfv3AreaTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3AreaEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information describing the configured
parameters and cumulative statistics of the router's
attached areas. The interfaces and
virtual links are configured as part of these areas.
Area 0, by definition, is the backbone area."
REFERENCE
"OSPF Version 2, Section 6, The Area Data
Structure"
::= { ospfv3Objects 2 }
ospfv3AreaEntry OBJECT-TYPE
SYNTAX Ospfv3AreaEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information describing the configured
parameters and cumulative statistics of one of the
router's attached areas.
The information in this table is persistent,
and when written, the entity SHOULD save the a
change to non-volatile storage."
INDEX { ospfv3AreaId }
::= { ospfv3AreaTable 1 }
Ospfv3AreaEntry ::= SEQUENCE {
ospfv3AreaId
Ospfv3AreaIdTC,
ospfv3AreaImportAsExtern
INTEGER,
ospfv3AreaSpfRuns
Counter32,
ospfv3AreaBdrRtrCount
Gauge32,
ospfv3AreaAsBdrRtrCount
Gauge32,
ospfv3AreaScopeLsaCount
Gauge32,
ospfv3AreaScopeLsaCksumSum
Unsigned32,
ospfv3AreaSummary
INTEGER,
ospfv3AreaRowStatus
RowStatus,
ospfv3AreaStubMetric
BigMetric,
ospfv3AreaNssaTranslatorRole
INTEGER,
ospfv3AreaNssaTranslatorState
INTEGER,
ospfv3AreaNssaTranslatorStabInterval
Unsigned32,
ospfv3AreaNssaTranslatorEvents
Counter32,
ospfv3AreaStubMetricType
INTEGER,
ospfv3AreaTEEnabled
TruthValue
}
ospfv3AreaId OBJECT-TYPE
SYNTAX Ospfv3AreaIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A 32-bit unsigned integer uniquely identifying an area.
Area ID 0 is used for the OSPFv3 backbone."
REFERENCE
"OSPF Version 2, Appendix C.2, Area parameters"
::= { ospfv3AreaEntry 1 }
ospfv3AreaImportAsExtern OBJECT-TYPE
SYNTAX INTEGER {
importExternal(1), -- normal area
importNoExternal(2), -- stub area
importNssa(3) -- not-so-stubby-area
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Indicates whether an area is a stub area, NSSA, or
standard area. AS-scope LSAs are not imported into stub
areas or NSSAs. NSSAs import AS-External data as NSSA
LSAs that have Area-scope."
REFERENCE
"OSPF Version 2, Appendix C.2, Area parameters"
DEFVAL { importExternal }
::= { ospfv3AreaEntry 2 }
ospfv3AreaSpfRuns OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times that the intra-area route
table has been calculated using this area's
link state database. This is typically done
using Dijkstra's algorithm.
Discontinuities in the value of this counter
can occur at re-initialization of the management
system and at other times as indicated by the
value of ospfv3DiscontinuityTime."
::= { ospfv3AreaEntry 3 }
ospfv3AreaBdrRtrCount OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of area border routers
reachable within this area. This is initially zero,
and is calculated in each Shortest Path First (SPF)
pass."
DEFVAL { 0 }
::= { ospfv3AreaEntry 4 }
ospfv3AreaAsBdrRtrCount OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of Autonomous System border
routers reachable within this area. This is
initially zero, and is calculated in each SPF
pass."
DEFVAL { 0 }
::= { ospfv3AreaEntry 5 }
ospfv3AreaScopeLsaCount OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of Area-scope link state
advertisements in this area's link state
database."
DEFVAL { 0 }
::= { ospfv3AreaEntry 6 }That's the end of this bit, and we're getting into the good stuff next 🎀
ospfv3AreaScopeLsaCksumSum OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "The 32-bit unsigned sum of the Area-scope link state advertisements' LS checksums contained in this area's link state database. The sum can be used to determine if there has been a change in a router's link state database or to compare the link state database of two routers." ::= { ospfv3AreaEntry 7 }
ospfv3AreaSummary OBJECT-TYPE SYNTAX INTEGER { noAreaSummary(1), sendAreaSummary(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "The variable ospfv3AreaSummary controls the import of Inter-Area LSAs into stub and NSSA areas. It has no effect on other areas.
If it is noAreaSummary, the router will neither originate nor propagate Inter-Area LSAs into the stub or NSSA area. It will only advertise a default route.
If it is sendAreaSummary, the router will both summarize and propagate Inter-Area LSAs." DEFVAL { sendAreaSummary } ::= { ospfv3AreaEntry 8 }
ospfv3AreaRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object permits management of the table by facilitating actions such as row creation, construction, and destruction.
The value of this object has no effect on whether other objects in this conceptual row can be modified." ::= { ospfv3AreaEntry 9 }
ospfv3AreaStubMetric OBJECT-TYPE SYNTAX BigMetric MAX-ACCESS read-create STATUS current DESCRIPTION "The metric value advertised for the default route into stub and NSSA areas. By default, this equals the least metric among the interfaces to other areas." ::= { ospfv3AreaEntry 10 }
ospfv3AreaNssaTranslatorRole OBJECT-TYPE SYNTAX INTEGER { always(1), candidate(2) } MAX-ACCESS read-create STATUS current DESCRIPTION "Indicates an NSSA border router's policy to perform NSSA translation of NSSA-LSAs into AS-External-LSAs." DEFVAL { candidate } ::= { ospfv3AreaEntry 11 }
ospfv3AreaNssaTranslatorState OBJECT-TYPE SYNTAX INTEGER { enabled(1), elected(2), disabled(3) } MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates if and how an NSSA border router is performing NSSA translation of NSSA-LSAs into AS-External-LSAs. When this object is set to 'enabled', the NSSA border router's ospfv3AreaNssaTranslatorRole has been set to 'always'. When this object is set to 'elected', a candidate NSSA border router is translating NSSA-LSAs into AS-External-LSAs. When this object is set to 'disabled', a candidate NSSA Border router is NOT translating NSSA-LSAs into AS-External-LSAs." ::= { ospfv3AreaEntry 12 }
ospfv3AreaNssaTranslatorStabInterval OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The stability interval defined as the number of seconds after an elected translator determines its services are no longer required that it should continue to perform its translation duties." DEFVAL { 40 } ::= { ospfv3AreaEntry 13 }
ospfv3AreaNssaTranslatorEvents OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the number of Translator state changes that have occurred since the last start-up of the OSPFv3 routing process.
Discontinuities in the value of this counter can occur at re-initialization of the management system and at other times as indicated by the value of ospfv3DiscontinuityTime." ::= { ospfv3AreaEntry 14 }
ospfv3AreaStubMetricType OBJECT-TYPE SYNTAX INTEGER { ospfv3Metric(1), -- OSPF Metric comparableCost(2), -- external type 1 nonComparable(3) -- external type 2 } MAX-ACCESS read-create STATUS current DESCRIPTION "This variable assigns the type of metric advertised as a default route." DEFVAL { ospfv3Metric } ::= { ospfv3AreaEntry 15 }
ospfv3AreaTEEnabled OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Indicates whether or not traffic engineering is enabled in the area. The object is set to the value true (1) to enable traffic engineering. Traffic engineering is disabled by default." DEFVAL { false } ::= { ospfv3AreaEntry 16 }
-- OSPFv3 AS-Scope Link State Database
ospfv3AsLsdbTable OBJECT-TYPE SYNTAX SEQUENCE OF Ospfv3AsLsdbEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "The OSPFv3 Process's AS-scope link state database (LSDB). The LSDB contains the AS-scope link state advertisements from throughout the areas that the device is attached to." ::= { ospfv3Objects 3 }
ospfv3AsLsdbEntry OBJECT-TYPE SYNTAX Ospfv3AsLsdbEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "A single AS-scope link state advertisement." INDEX { ospfv3AsLsdbType, ospfv3AsLsdbRouterId, ospfv3AsLsdbLsid }
::= { ospfv3AsLsdbTable 1 }
Ospfv3AsLsdbEntry ::= SEQUENCE { ospfv3AsLsdbType Unsigned32, ospfv3AsLsdbRouterId Ospfv3RouterIdTC, ospfv3AsLsdbLsid Ospfv3LsIdTC, ospfv3AsLsdbSequence Ospfv3LsaSequenceTC, ospfv3AsLsdbAge Ospfv3LsaAgeTC, ospfv3AsLsdbChecksum Integer32, ospfv3AsLsdbAdvertisement OCTET STRING, ospfv3AsLsdbTypeKnown TruthValue }
ospfv3AsLsdbType OBJECT-TYPE SYNTAX Unsigned32(0..'FFFFFFFF'h) MAX-ACCESS not-accessible STATUS current DESCRIPTION "The type of the link state advertisement. Each link state type has a separate advertisement format. AS-scope LSAs not recognized by the router may be stored in the database." ::= { ospfv3AsLsdbEntry 1 }
ospfv3AsLsdbRouterId OBJECT-TYPE SYNTAX Ospfv3RouterIdTC MAX-ACCESS not-accessible STATUS current DESCRIPTION "The 32-bit number that uniquely identifies the originating router in the Autonomous System." REFERENCE "OSPF Version 2, Appendix C.1, Global parameters" ::= { ospfv3AsLsdbEntry 2 }
ospfv3AsLsdbLsid OBJECT-TYPE SYNTAX Ospfv3LsIdTC MAX-ACCESS not-accessible STATUS current DESCRIPTION "The Link State ID is an LS type-specific field containing a unique identifier; it identifies the piece of the routing domain that is being described by the advertisement. In contrast to OSPFv2, the LSID has no addressing semantics." ::= { ospfv3AsLsdbEntry 3 }
-- Note that the OSPF sequence number is a 32-bit signed -- integer. It starts with the value '80000001'h -- or -'7FFFFFFF'h, and increments until '7FFFFFFF'h. -- Thus, a typical sequence number will be very negative.
ospfv3AsLsdbSequence OBJECT-TYPE SYNTAX Ospfv3LsaSequenceTC MAX-ACCESS read-only STATUS current DESCRIPTION "The sequence number field is a signed 32-bit integer. It is used to detect old and duplicate link state advertisements. The space of sequence numbers is linearly ordered. The larger the sequence number, the more recent the advertisement." REFERENCE "OSPF Version 2, Section 12.1.6, LS sequence number" ::= { ospfv3AsLsdbEntry 4 }
ospfv3AsLsdbAge OBJECT-TYPE SYNTAX Ospfv3LsaAgeTC UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "This field is the age of the link state advertisement in seconds. The high-order bit of the LS age field is considered the DoNotAge bit for support of on-demand circuits." REFERENCE "OSPF Version 2, Section 12.1.1, LS age; Extending OSPF to Support Demand Circuits, Section 2.2, The LS age field." ::= { ospfv3AsLsdbEntry 5 }
ospfv3AsLsdbChecksum OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-only STATUS current DESCRIPTION "This field is the checksum of the complete contents of the advertisement, excepting the age field. The age field is excepted so that an advertisement's age can be incremented without updating the checksum. The checksum used is the same that is used for ISO connectionless datagrams; it is commonly referred to as the Fletcher checksum." REFERENCE "OSPF Version 2, Section 12.1.7, LS checksum" ::= { ospfv3AsLsdbEntry 6 }
ospfv3AsLsdbAdvertisement OBJECT-TYPE SYNTAX OCTET STRING (SIZE (1..65535)) MAX-ACCESS read-only STATUS current DESCRIPTION "The entire link state advertisement, including its header." ::= { ospfv3AsLsdbEntry 7 }
okay so we're still in 4.3 and the AS-scope table is wrapping up right here 🎀 then the Area-scope and Link-scope tables roll in like the main characters they are 💅🦋
ospfv3AsLsdbTypeKnown OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value true (1) indicates that the LSA type
is recognized by this router."
::= { ospfv3AsLsdbEntry 8 }
-- OSPFv3 Area-Scope Link State Database
ospfv3AreaLsdbTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3AreaLsdbEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The OSPFv3 Process's Area-scope LSDB.
The LSDB contains the Area-scope link state
advertisements from throughout the area that the
device is attached to."
::= { ospfv3Objects 4 }
ospfv3AreaLsdbEntry OBJECT-TYPE
SYNTAX Ospfv3AreaLsdbEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A single Area-scope link state advertisement."
INDEX { ospfv3AreaLsdbAreaId,
ospfv3AreaLsdbType,
ospfv3AreaLsdbRouterId,
ospfv3AreaLsdbLsid }
::= { ospfv3AreaLsdbTable 1 }
Ospfv3AreaLsdbEntry ::= SEQUENCE {
ospfv3AreaLsdbAreaId
Ospfv3AreaIdTC,
ospfv3AreaLsdbType
Unsigned32,
ospfv3AreaLsdbRouterId
Ospfv3RouterIdTC,
ospfv3AreaLsdbLsid
Ospfv3LsIdTC,
ospfv3AreaLsdbSequence
Ospfv3LsaSequenceTC,
ospfv3AreaLsdbAge
Ospfv3LsaAgeTC,
ospfv3AreaLsdbChecksum
Integer32,
ospfv3AreaLsdbAdvertisement
OCTET STRING,
ospfv3AreaLsdbTypeKnown
TruthValue
}
ospfv3AreaLsdbAreaId OBJECT-TYPE
SYNTAX Ospfv3AreaIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The 32-bit identifier of the Area from which the
LSA was received."
REFERENCE
"OSPF Version 2, Appendix C.2, Area parameters"
::= { ospfv3AreaLsdbEntry 1 }
ospfv3AreaLsdbType OBJECT-TYPE
SYNTAX Unsigned32(0..'FFFFFFFF'h)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of the link state advertisement.
Each link state type has a separate
advertisement format. Area-scope LSAs unrecognized
by the router are also stored in this database."
::= { ospfv3AreaLsdbEntry 2 }
ospfv3AreaLsdbRouterId OBJECT-TYPE
SYNTAX Ospfv3RouterIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The 32-bit number that uniquely identifies the
originating router in the Autonomous System."
REFERENCE
"OSPF Version 2, Appendix C.1, Global parameters"
::= { ospfv3AreaLsdbEntry 3 }
ospfv3AreaLsdbLsid OBJECT-TYPE
SYNTAX Ospfv3LsIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Link State ID is an LS type-specific field
containing a unique identifier;
it identifies the piece of the routing domain
that is being described by the advertisement.
In contrast to OSPFv2, the LSID has no
addressing semantics."
::= { ospfv3AreaLsdbEntry 4 }
-- Note that the OSPF sequence number is a 32-bit signed
-- integer. It starts with the value '80000001'h
-- or -'7FFFFFFF'h, and increments until '7FFFFFFF'h.
-- Thus, a typical sequence number will be very negative.
ospfv3AreaLsdbSequence OBJECT-TYPE
SYNTAX Ospfv3LsaSequenceTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The sequence number field is a signed 32-bit
integer. It is used to detect old and
duplicate link state advertisements. The space
of sequence numbers is linearly ordered. The
larger the sequence number, the more recent the
advertisement."
REFERENCE
"OSPF Version 2, Section 12.1.6, LS sequence
number"
::= { ospfv3AreaLsdbEntry 5 }
ospfv3AreaLsdbAge OBJECT-TYPE
SYNTAX Ospfv3LsaAgeTC
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This field is the age of the link state
advertisement in seconds. The high-order bit
of the LS age field is considered the DoNotAge
bit for support of on-demand circuits."
REFERENCE
"OSPF Version 2, Section 12.1.1, LS age;
Extending OSPF to Support Demand Circuits,
Section 2.2, The LS age field."
::= { ospfv3AreaLsdbEntry 6 }
ospfv3AreaLsdbChecksum OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This field is the checksum of the complete
contents of the advertisement, excepting the
age field. The age field is excepted so that
an advertisement's age can be incremented
without updating the checksum. The checksum
used is the same that is used for ISO
connectionless datagrams; it is commonly
referred to as the Fletcher checksum."
REFERENCE
"OSPF Version 2, Section 12.1.7, LS checksum"
::= { ospfv3AreaLsdbEntry 7 }
ospfv3AreaLsdbAdvertisement OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (1..65535))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The entire link state advertisement, including
its header."
::= { ospfv3AreaLsdbEntry 8 }
ospfv3AreaLsdbTypeKnown OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value true (1) indicates that the LSA type is
recognized by this router."
::= { ospfv3AreaLsdbEntry 9 }
-- OSPFv3 Link-Scope Link State Database, for non-virtual interfaces
ospfv3LinkLsdbTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3LinkLsdbEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The OSPFv3 Process's Link-scope LSDB for non-virtual
interfaces. The LSDB contains the Link-scope link
state advertisements from the interfaces that the
device is attached to."
::= { ospfv3Objects 5 }
ospfv3LinkLsdbEntry OBJECT-TYPE
SYNTAX Ospfv3LinkLsdbEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A single Link-scope link state advertisement."
INDEX { ospfv3LinkLsdbIfIndex,
ospfv3LinkLsdbIfInstId,
ospfv3LinkLsdbType,
ospfv3LinkLsdbRouterId,
ospfv3LinkLsdbLsid }
::= { ospfv3LinkLsdbTable 1 }
Ospfv3LinkLsdbEntry ::= SEQUENCE {
ospfv3LinkLsdbIfIndex
InterfaceIndex,
ospfv3LinkLsdbIfInstId
Ospfv3IfInstIdTC,
ospfv3LinkLsdbType
Unsigned32,
ospfv3LinkLsdbRouterId
Ospfv3RouterIdTC,
ospfv3LinkLsdbLsid
Ospfv3LsIdTC,
ospfv3LinkLsdbSequence
Ospfv3LsaSequenceTC,
ospfv3LinkLsdbAge
Ospfv3LsaAgeTC,
ospfv3LinkLsdbChecksum
Integer32,
ospfv3LinkLsdbAdvertisement
OCTET STRING,
ospfv3LinkLsdbTypeKnown
TruthValue
}
ospfv3LinkLsdbIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The identifier of the link from which the LSA
was received."
::= { ospfv3LinkLsdbEntry 1 }
ospfv3LinkLsdbIfInstId OBJECT-TYPE
SYNTAX Ospfv3IfInstIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The identifier of the interface instance from
which the LSA was received."
::= { ospfv3LinkLsdbEntry 2 }
ospfv3LinkLsdbType OBJECT-TYPE
SYNTAX Unsigned32(0..'FFFFFFFF'h)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of the link state advertisement.
Each link state type has a separate
advertisement format. Link-scope LSAs unrecognized
by the router are also stored in this database."
::= { ospfv3LinkLsdbEntry 3 }
ospfv3LinkLsdbRouterId OBJECT-TYPE
SYNTAX Ospfv3RouterIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The 32-bit number that uniquely identifies the
originating router in the Autonomous System."
REFERENCE
"OSPF Version 2, Appendix C.1, Global parameters"
::= { ospfv3LinkLsdbEntry 4 }
ospfv3LinkLsdbLsid OBJECT-TYPE
SYNTAX Ospfv3LsIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Link State ID is an LS type-specific field
containing a unique identifier;
it identifies the piece of the routing domain
that is being described by the advertisement.
In contrast to OSPFv2, the LSID has no
addressing semantics. However, in OSPFv3
the Link State ID always contains the flooding
scope of the LSA."
::= { ospfv3LinkLsdbEntry 5 }
-- Note that the OSPF sequence number is a 32-bit signed
-- integer. It starts with the value '80000001'h
-- or -'7FFFFFFF'h, and increments until '7FFFFFFF'h.
-- Thus, a typical sequence number will be very negative.
ospfv3LinkLsdbSequence OBJECT-TYPE
SYNTAX Ospfv3LsaSequenceTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The sequence number field is a signed 32-bit
integer. It is used to detect old and duplicate
link state advertisements. The space of
sequence numbers is linearly ordered. The
larger the sequence number, the more recent the
advertisement."
REFERENCE
"OSPF Version 2, Section 12.1.6, LS sequence
number"
::= { ospfv3LinkLsdbEntry 6 }okay bestie, the link-LSDB fields are next and they're lowkey iconic 🦋 The age field even has its own DoNotAge bit for on-demand circuits 🧚
ospfv3LinkLsdbAge OBJECT-TYPE
SYNTAX Ospfv3LsaAgeTC
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This field is the age of the link state
advertisement in seconds. The high-order bit
of the LS age field is considered the DoNotAge
bit for support of on-demand circuits."
REFERENCE
"OSPF Version 2, Section 12.1.1, LS age;
Extending OSPF to Support Demand Circuits,
Section 2.2, The LS age field."
::= { ospfv3LinkLsdbEntry 7 }
ospfv3LinkLsdbChecksum OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This field is the checksum of the complete
contents of the advertisement, excepting the
age field. The age field is excepted so that
an advertisement's age can be incremented
without updating the checksum. The checksum
used is the same that is used for ISO
connectionless datagrams; it is commonly
referred to as the Fletcher checksum."
REFERENCE
"OSPF Version 2, Section 12.1.7, LS checksum"
::= { ospfv3LinkLsdbEntry 8 }
ospfv3LinkLsdbAdvertisement OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (1..65535))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The entire link state advertisement, including
its header."
::= { ospfv3LinkLsdbEntry 9 }
ospfv3LinkLsdbTypeKnown OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value true (1) indicates that the LSA type is
recognized by this router."
::= { ospfv3LinkLsdbEntry 10 }
-- OSPF Host Table
ospfv3HostTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3HostEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Host/Metric Table indicates what hosts are
directly attached to the router and their
corresponding metrics."
REFERENCE
"OSPF Version 2, Appendix C.7, Host route
parameters"
::= { ospfv3Objects 6 }
ospfv3HostEntry OBJECT-TYPE
SYNTAX Ospfv3HostEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A metric to be advertised when a given host is
reachable.
The information in this table is persistent, and
when written, the entity SHOULD save the change
to non-volatile storage."
INDEX { ospfv3HostAddressType,
ospfv3HostAddress }
::= { ospfv3HostTable 1 }
Ospfv3HostEntry ::= SEQUENCE {
ospfv3HostAddressType
InetAddressType,
ospfv3HostAddress
InetAddress,
ospfv3HostMetric
Metric,
ospfv3HostRowStatus
RowStatus,
ospfv3HostAreaID
Ospfv3AreaIdTC
}
ospfv3HostAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The address type of ospfv3HostAddress. Only IPv6
global address type is expected."
REFERENCE
"OSPF Version 2, Appendix C.7, Host route
parameters"
::= { ospfv3HostEntry 1 }
ospfv3HostAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IPv6 address of the host. Must be an
IPv6 global address."
REFERENCE
"OSPF Version 2, Appendix C.7, Host route
parameters"
::= { ospfv3HostEntry 2 }
ospfv3HostMetric OBJECT-TYPE
SYNTAX Metric
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The metric to be advertised."
REFERENCE
"OSPF Version 2, Appendix C.7, Host route
parameters"
::= { ospfv3HostEntry 3 }
ospfv3HostRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object permits management of the table by
facilitating actions such as row creation,
construction, and destruction.
The value of this object has no effect on
whether other objects in this conceptual row can be
modified."
::= { ospfv3HostEntry 4 }
ospfv3HostAreaID OBJECT-TYPE
SYNTAX Ospfv3AreaIdTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The Area the host entry is to be found within.
By default, the area for the subsuming OSPFv3
interface, or Area 0 if there is no subsuming
interface."
REFERENCE
"OSPF Version 2, Appendix C.2, Area parameters"
::= { ospfv3HostEntry 5 }
-- OSPFv3 Interface Table
ospfv3IfTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3IfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The OSPFv3 Interface Table describes the
interfaces from the viewpoint of OSPFv3."
REFERENCE
"OSPF for IPv6, Appendix C.3, Router Interface
Parameters"
::= { ospfv3Objects 7 }
ospfv3IfEntry OBJECT-TYPE
SYNTAX Ospfv3IfEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The OSPFv3 Interface Entry describes one
interface from the viewpoint of OSPFv3.
The information in this table is persistent,
and when written, the entity SHOULD save the
change to non-volatile storage."
INDEX { ospfv3IfIndex,
ospfv3IfInstId }
::= { ospfv3IfTable 1 }
Ospfv3IfEntry ::= SEQUENCE {
ospfv3IfIndex
InterfaceIndex,
ospfv3IfInstId
Ospfv3IfInstIdTC,
ospfv3IfAreaId
Ospfv3AreaIdTC,
ospfv3IfType
INTEGER,
ospfv3IfAdminStatus
Status,
ospfv3IfRtrPriority
DesignatedRouterPriority,
ospfv3IfTransitDelay
Ospfv3UpToRefreshIntervalTC,
ospfv3IfRetransInterval
Ospfv3UpToRefreshIntervalTC,
ospfv3IfHelloInterval
HelloRange,
ospfv3IfRtrDeadInterval
Ospfv3DeadIntervalRangeTC,
ospfv3IfPollInterval
Unsigned32,
ospfv3IfState
INTEGER,
ospfv3IfDesignatedRouter
Ospfv3RouterIdTC,
ospfv3IfBackupDesignatedRouter
Ospfv3RouterIdTC,
ospfv3IfEvents
Counter32,
ospfv3IfRowStatus
RowStatus,
ospfv3IfDemand
TruthValue,
ospfv3IfMetricValue
Metric,
ospfv3IfLinkScopeLsaCount
Gauge32,
ospfv3IfLinkLsaCksumSum
Unsigned32,
ospfv3IfDemandNbrProbe
TruthValue,
ospfv3IfDemandNbrProbeRetransLimit
Unsigned32,
ospfv3IfDemandNbrProbeInterval
Unsigned32,
ospfv3IfTEDisabled
TruthValue,
ospfv3IfLinkLSASuppression
TruthValue
}
ospfv3IfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The interface index of this OSPFv3 interface.
It corresponds to the interface index of the
IPv6 interface on which OSPFv3 is configured."
::= { ospfv3IfEntry 1 }
ospfv3IfInstId OBJECT-TYPE
SYNTAX Ospfv3IfInstIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Enables multiple interface instances of OSPFv3
to be run over a single link. Each interface
instance would be assigned a separate ID. This ID
has local link significance only."
::= { ospfv3IfEntry 2 }
ospfv3IfAreaId OBJECT-TYPE
SYNTAX Ospfv3AreaIdTC
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A 32-bit integer uniquely identifying the area
to which the interface connects. Area ID
0 is used for the OSPFv3 backbone."
DEFVAL { 0 }
::= { ospfv3IfEntry 3 }
ospfv3IfType OBJECT-TYPE
SYNTAX INTEGER {
broadcast(1),
nbma(2),
pointToPoint(3),
pointToMultipoint(5)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The OSPFv3 interface type."
::= { ospfv3IfEntry 4 }
ospfv3IfAdminStatus OBJECT-TYPE
SYNTAX Status
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The OSPFv3 interface's administrative status.
The value formed on the interface; the interface
will be advertised as an internal route to some
area. The value 'disabled' denotes that the
interface is external to OSPFv3.
Note that a value of 'disabled' for the object
ospfv3AdminStatus will override a value of
'enabled' for the interface."
DEFVAL { enabled }
::= { ospfv3IfEntry 5 }
ospfv3IfRtrPriority OBJECT-TYPE
SYNTAX DesignatedRouterPriority
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The priority of this interface. Used in
multi-access networks, this field is used in
the designated-router election algorithm. The
value 0 signifies that the router is not
eligible to become the Designated Router on this
particular network. In the event of a tie in
this value, routers will use their Router ID as
a tie breaker."
DEFVAL { 1 }
::= { ospfv3IfEntry 6 }ospfv3IfTransitDelay OBJECT-TYPE SYNTAX Ospfv3UpToRefreshIntervalTC UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The estimated number of seconds it takes to transmit a Link State Update packet over this interface. LSAs contained in the update packet must have their age incremented by this amount before transmission. This value should take into account the transmission and propagation delays of the interface." REFERENCE "OSPF for IPv6, Appendix C.3, Router Interface Parameters." DEFVAL { 1 } ::= { ospfv3IfEntry 7 }
ospfv3IfRetransInterval OBJECT-TYPE SYNTAX Ospfv3UpToRefreshIntervalTC UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The number of seconds between link state advertisement retransmissions for adjacencies belonging to this interface. This value is also used when retransmitting database description and Link State Request packets." DEFVAL { 5 } ::= { ospfv3IfEntry 8 }
ospfv3IfHelloInterval OBJECT-TYPE SYNTAX HelloRange UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The length of time, in seconds, between the Hello packets that the router sends on the interface. This value must be the same for all routers attached to a common network." DEFVAL { 10 } ::= { ospfv3IfEntry 9 }
ospfv3IfRtrDeadInterval OBJECT-TYPE SYNTAX Ospfv3DeadIntervalRangeTC UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The number of seconds that a router's Hello packets have not been seen before its neighbors declare the router down on the interface. This should be some multiple of the Hello interval. This value must be the same for all routers attached to a common network." DEFVAL { 40 } ::= { ospfv3IfEntry 10 }
ospfv3IfPollInterval OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The larger time interval, in seconds, between the Hello packets sent to an inactive, non-broadcast multi-access neighbor." DEFVAL { 120 } ::= { ospfv3IfEntry 11 }
ospfv3IfState OBJECT-TYPE SYNTAX INTEGER { down(1), loopback(2), waiting(3), pointToPoint(4), designatedRouter(5), backupDesignatedRouter(6), otherDesignatedRouter(7), standby(8) } MAX-ACCESS read-only STATUS current DESCRIPTION "The OSPFv3 interface state. An interface may be in standby state if there are multiple interfaces on the link and another interface is active. The interface may be in Down state if the underlying IPv6 interface is down or if the admin status is 'disabled' either globally or for the interface." ::= { ospfv3IfEntry 12 }
ospfv3IfDesignatedRouter OBJECT-TYPE SYNTAX Ospfv3RouterIdTC MAX-ACCESS read-only STATUS current DESCRIPTION "The Router ID of the Designated Router." ::= { ospfv3IfEntry 13 }
ospfv3IfBackupDesignatedRouter OBJECT-TYPE SYNTAX Ospfv3RouterIdTC MAX-ACCESS read-only STATUS current DESCRIPTION "The Router ID of the Backup Designated Router." ::= { ospfv3IfEntry 14 }
ospfv3IfEvents OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The number of times this OSPFv3 interface has changed its state or an error has occurred.
Discontinuities in the value of this counter can occur at re-initialization of the management system and at other times as indicated by the value of ospfv3DiscontinuityTime." ::= { ospfv3IfEntry 15 }
ospfv3IfRowStatus OBJECT-TYPE SYNTAX RowStatus MAX-ACCESS read-create STATUS current DESCRIPTION "This object permits management of the table by facilitating actions such as row creation, construction, and destruction.
The value of this object has no effect on whether other objects in this conceptual row can be modified." ::= { ospfv3IfEntry 16 }
ospfv3IfDemand OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Indicates whether Demand OSPFv3 procedures (Hello suppression to FULL neighbors and setting the DoNotAge flag on propagated LSAs) should be performed on this interface." DEFVAL { false } ::= { ospfv3IfEntry 17 }
ospfv3IfMetricValue OBJECT-TYPE SYNTAX Metric MAX-ACCESS read-create STATUS current DESCRIPTION "The metric assigned to this interface. The default value of the metric is 'Reference Bandwidth / ifSpeed'. The value of the reference bandwidth can be set in the ospfv3ReferenceBandwidth object." ::= { ospfv3IfEntry 18 }
ospfv3IfLinkScopeLsaCount OBJECT-TYPE SYNTAX Gauge32 MAX-ACCESS read-only STATUS current DESCRIPTION "The total number of Link-scope link state advertisements in this link's link state database." ::= { ospfv3IfEntry 19 }
ospfv3IfLinkLsaCksumSum OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-only STATUS current DESCRIPTION "The 32-bit unsigned sum of the Link-scope link state advertisements' LS checksums contained in this link's link state database. The sum can be used to determine if there has been a change in a router's link state database or to compare the link state database of two routers." ::= { ospfv3IfEntry 20 }
ospfv3IfDemandNbrProbe OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Indicates whether or not neighbor probing is enabled to determine whether or not the neighbor is inactive. Neighbor probing is disabled by default." DEFVAL { false } ::= { ospfv3IfEntry 21 }
ospfv3IfDemandNbrProbeRetransLimit OBJECT-TYPE SYNTAX Unsigned32 MAX-ACCESS read-create STATUS current DESCRIPTION "The number of consecutive LSA retransmissions before the neighbor is deemed inactive and the neighbor adjacency is brought down." DEFVAL { 10 } ::= { ospfv3IfEntry 22}
ospfv3IfDemandNbrProbeInterval OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "Defines how often the neighbor will be probed." DEFVAL { 120 } ::= { ospfv3IfEntry 23 }
ospfv3IfTEDisabled OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Indicates whether or not traffic engineering is disabled on the interface when traffic engineering is enabled in the area where the interface is attached. The object is set to the value true (1) to disable traffic engineering on the interface. Traffic engineering is enabled by default on the interface when traffic engineering is enabled in the area where the interface is attached." DEFVAL { false } ::= { ospfv3IfEntry 24 }
ospfv3IfLinkLSASuppression OBJECT-TYPE SYNTAX TruthValue MAX-ACCESS read-create STATUS current DESCRIPTION "Specifies whether or not link LSA origination is suppressed for broadcast or NBMA interface types. The object is set to value true (1) to suppress the origination." REFERENCE "OSPF for IPv6, Appendix C.3, Router Interface Parameters" DEFVAL { false } ::= { ospfv3IfEntry 25 }
-- OSPFv3 Virtual Interface Table
ospfv3VirtIfTable OBJECT-TYPE SYNTAX SEQUENCE OF Ospfv3VirtIfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Information about this router's virtual interfaces that the OSPFv3 Process is configured to carry on."
REFERENCE "OSPF for IPv6, Appendix C.4, Virtual Link Parameters" ::= { ospfv3Objects 8 }
ospfv3VirtIfEntry OBJECT-TYPE SYNTAX Ospfv3VirtIfEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Information about a single virtual interface.
The information in this table is persistent, and when written, the entity SHOULD save the change to non-volatile storage." INDEX { ospfv3VirtIfAreaId, ospfv3VirtIfNeighbor } ::= { ospfv3VirtIfTable 1 }
okay bestie, the virtual link table is up next and it's giving organized 🎀 each column is one property of a virtual link, like its transit area, its far-end router, and its timers 💅
Ospfv3VirtIfEntry ::= SEQUENCE {
ospfv3VirtIfAreaId
Ospfv3AreaIdTC,
ospfv3VirtIfNeighbor
Ospfv3RouterIdTC,
ospfv3VirtIfIndex
InterfaceIndex,
ospfv3VirtIfInstId
Ospfv3IfInstIdTC,
ospfv3VirtIfTransitDelay
Ospfv3UpToRefreshIntervalTC,
ospfv3VirtIfRetransInterval
Ospfv3UpToRefreshIntervalTC,
ospfv3VirtIfHelloInterval
HelloRange,
ospfv3VirtIfRtrDeadInterval
Ospfv3DeadIntervalRangeTC,
ospfv3VirtIfState
INTEGER,
ospfv3VirtIfEvents
Counter32,
ospfv3VirtIfRowStatus
RowStatus,
ospfv3VirtIfLinkScopeLsaCount
Gauge32,
ospfv3VirtIfLinkLsaCksumSum
Unsigned32
}
ospfv3VirtIfAreaId OBJECT-TYPE
SYNTAX Ospfv3AreaIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The transit area that the virtual link
traverses. By definition, this is not
Area 0."
::= { ospfv3VirtIfEntry 1 }
ospfv3VirtIfNeighbor OBJECT-TYPE
SYNTAX Ospfv3RouterIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Router ID of the virtual neighbor."
::= { ospfv3VirtIfEntry 2 }
ospfv3VirtIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The local interface index assigned by the
OSPFv3 Process to this OSPFv3 virtual interface.
It is advertised in Hellos sent over the virtual
link and in the router's router-LSAs."
::= { ospfv3VirtIfEntry 3 }
ospfv3VirtIfInstId OBJECT-TYPE
SYNTAX Ospfv3IfInstIdTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The local Interface Instance ID assigned by the
OSPFv3 Process to this OSPFv3 virtual interface."
::= { ospfv3VirtIfEntry 4 }
ospfv3VirtIfTransitDelay OBJECT-TYPE
SYNTAX Ospfv3UpToRefreshIntervalTC
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The estimated number of seconds it takes to
transmit a Link State Update packet over this
interface."
DEFVAL { 1 }
::= { ospfv3VirtIfEntry 5 }
ospfv3VirtIfRetransInterval OBJECT-TYPE
SYNTAX Ospfv3UpToRefreshIntervalTC
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of seconds between link state
advertisement retransmissions for adjacencies
belonging to this interface. This value is
also used when retransmitting database
description and Link State Request packets. This
value should be well over the expected
round-trip time."
DEFVAL { 5 }
::= { ospfv3VirtIfEntry 6 }
ospfv3VirtIfHelloInterval OBJECT-TYPE
SYNTAX HelloRange
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The length of time, in seconds, between the
Hello packets that the router sends on the
interface. This value must be the same for the
virtual neighbor."
DEFVAL { 10 }
::= { ospfv3VirtIfEntry 7 }
ospfv3VirtIfRtrDeadInterval OBJECT-TYPE
SYNTAX Ospfv3DeadIntervalRangeTC
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of seconds that a router's Hello
packets have not been seen before its
neighbors declare the router down. This should
be some multiple of the Hello interval. This
value must be the same for the virtual
neighbor."
DEFVAL { 60 }
::= { ospfv3VirtIfEntry 8 }
ospfv3VirtIfState OBJECT-TYPE
SYNTAX INTEGER {
down(1),
pointToPoint(4)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"OSPF virtual interface states. The same encoding
as the ospfV3IfTable is used."
::= { ospfv3VirtIfEntry 9 }
ospfv3VirtIfEvents OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of state changes or error events on
this virtual link.
Discontinuities in the value of this counter
can occur at re-initialization of the management
system and at other times as indicated by the
value of ospfv3DiscontinuityTime."
::= { ospfv3VirtIfEntry 10 }
ospfv3VirtIfRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object permits management of the table by
facilitating actions such as row creation,
construction, and destruction.
The value of this object has no effect on
whether other objects in this conceptual row can be
modified."
::= { ospfv3VirtIfEntry 11 }
ospfv3VirtIfLinkScopeLsaCount OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of Link-scope link state
advertisements in this virtual link's link state
database."
::= { ospfv3VirtIfEntry 12 }
ospfv3VirtIfLinkLsaCksumSum OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 32-bit unsigned sum of the Link-scope link state
advertisements' LS checksums contained in this
virtual link's link state database. The sum can be used
to determine if there has been a change in a
router's link state database or to compare the
link state database of two routers."
::= { ospfv3VirtIfEntry 13 }
-- OSPFv3 Neighbor Table
ospfv3NbrTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3NbrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table describing all neighbors in the
locality of the OSPFv3 router."
REFERENCE
"OSPF Version 2, Section 10, The Neighbor Data
Structure"
::= { ospfv3Objects 9 }
ospfv3NbrEntry OBJECT-TYPE
SYNTAX Ospfv3NbrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The information regarding a single neighbor."
REFERENCE
"OSPF Version 2, Section 10, The Neighbor Data
Structure"
INDEX { ospfv3NbrIfIndex,
ospfv3NbrIfInstId,
ospfv3NbrRtrId }
::= { ospfv3NbrTable 1 }
Ospfv3NbrEntry ::= SEQUENCE {
ospfv3NbrIfIndex
InterfaceIndex,
ospfv3NbrIfInstId
Ospfv3IfInstIdTC,
ospfv3NbrRtrId
Ospfv3RouterIdTC,
ospfv3NbrAddressType
InetAddressType,
ospfv3NbrAddress
InetAddress,
ospfv3NbrOptions
Integer32,
ospfv3NbrPriority
DesignatedRouterPriority,
ospfv3NbrState
INTEGER,
ospfv3NbrEvents
Counter32,
ospfv3NbrLsRetransQLen
Gauge32,
ospfv3NbrHelloSuppressed
TruthValue,
ospfv3NbrIfId
InterfaceIndex,
ospfv3NbrRestartHelperStatus
INTEGER,
ospfv3NbrRestartHelperAge
Ospfv3UpToRefreshIntervalTC,
ospfv3NbrRestartHelperExitReason
INTEGER
}
ospfv3NbrIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Local Link ID of the link over which the
neighbor can be reached."
::= { ospfv3NbrEntry 1 }
ospfv3NbrIfInstId OBJECT-TYPE
SYNTAX Ospfv3IfInstIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Interface instance over which the neighbor
can be reached. This ID has local link
significance only."
::= { ospfv3NbrEntry 2 }
ospfv3NbrRtrId OBJECT-TYPE
SYNTAX Ospfv3RouterIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A 32-bit unsigned integer uniquely identifying the
neighboring router in the Autonomous System."
::= { ospfv3NbrEntry 3 }
ospfv3NbrAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The address type of ospfv3NbrAddress. Only IPv6
addresses without zone index are expected."
::= { ospfv3NbrEntry 4 }
ospfv3NbrAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The IPv6 address of the neighbor associated with
the local link."
::= { ospfv3NbrEntry 5 }
ospfv3NbrOptions OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A bit mask corresponding to the neighbor's
options field."
REFERENCE
"OSPF for IPv6, Appendix A.2, The Options Field"
::= { ospfv3NbrEntry 6 }
ospfv3NbrPriority OBJECT-TYPE
SYNTAX DesignatedRouterPriority
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The priority of this neighbor in the designated-
router election algorithm. The value 0 signifies
that the neighbor is not eligible to become the
Designated Router on this particular network."
::= { ospfv3NbrEntry 7 }okay so this is where the neighbor drama really kicks off 💅 the state object tells you how things are going with each neighbor 🫶
ospfv3NbrState OBJECT-TYPE
SYNTAX INTEGER {
down(1),
attempt(2),
init(3),
twoWay(4),
exchangeStart(5),
exchange(6),
loading(7),
full(8)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The state of the relationship with this
neighbor."
REFERENCE
"OSPF Version 2, Section 10.1, Neighbor states"
::= { ospfv3NbrEntry 8 }
ospfv3NbrEvents OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times this neighbor relationship
has changed state or an error has occurred.
Discontinuities in the value of this counter
can occur at re-initialization of the management
system and at other times as indicated by the
value of ospfv3DiscontinuityTime."
::= { ospfv3NbrEntry 9 }
ospfv3NbrLsRetransQLen OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current length of the retransmission
queue."
::= { ospfv3NbrEntry 10 }
ospfv3NbrHelloSuppressed OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates whether Hellos are being suppressed
to the neighbor."
::= { ospfv3NbrEntry 11 }
ospfv3NbrIfId OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Interface ID that the neighbor advertises
in its Hello packets on this link, that is, the
neighbor's local interface index."
::= { ospfv3NbrEntry 12 }
ospfv3NbrRestartHelperStatus OBJECT-TYPE
SYNTAX INTEGER { notHelping(1),
helping(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates whether the router is acting
as a graceful restart helper for the neighbor."
::= { ospfv3NbrEntry 13 }
ospfv3NbrRestartHelperAge OBJECT-TYPE
SYNTAX Ospfv3UpToRefreshIntervalTC
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Remaining time in current OSPF graceful restart
interval, if the router is acting as a restart
helper for the neighbor."
::= { ospfv3NbrEntry 14 }
ospfv3NbrRestartHelperExitReason OBJECT-TYPE
SYNTAX INTEGER { none(1),
inProgress(2),
completed(3),
timedOut(4),
topologyChanged(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Describes the outcome of the last attempt at acting
as a graceful restart helper for the neighbor.
none: no restart has yet been attempted.
inProgress: a restart attempt is currently underway.
completed: the last restart completed successfully.
timedOut: the last restart timed out.
topologyChanged: the last restart was aborted due to
a topology change."
::= { ospfv3NbrEntry 15 }
-- OSPFv3 Configured Neighbor Table
ospfv3CfgNbrTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3CfgNbrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table describing all configured neighbors.
The Configured Neighbors table just gives
OSPFv3 information for sending OSPFv3 packets
to potential neighbors and is typically used
on NBMA and Point-to-Multipoint networks.
Once a Hello is received from a neighbor in
the Configured Neighbor table, an entry for
that neighbor is created in the Neighbor table
and adjacency state is maintained there.
Neighbors on multi-access or Point-to-Point
networks can use multicast addressing, so only
Neighbor table entries are created for them."
REFERENCE
"OSPF Version 2, Section 10, The Neighbor Data
Structure"
::= { ospfv3Objects 10 }
ospfv3CfgNbrEntry OBJECT-TYPE
SYNTAX Ospfv3CfgNbrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The information regarding a single configured
neighbor.
The information in this table is persistent,
and when written, the entity SHOULD save the
change to non-volatile storage."
REFERENCE
"OSPF Version 2, Section 10, The Neighbor Data
Structure"
INDEX { ospfv3CfgNbrIfIndex,
ospfv3CfgNbrIfInstId,
ospfv3CfgNbrAddressType,
ospfv3CfgNbrAddress }
::= { ospfv3CfgNbrTable 1 }
Ospfv3CfgNbrEntry ::= SEQUENCE {
ospfv3CfgNbrIfIndex
InterfaceIndex,
ospfv3CfgNbrIfInstId
Ospfv3IfInstIdTC,
ospfv3CfgNbrAddressType
InetAddressType,
ospfv3CfgNbrAddress
InetAddress,
ospfv3CfgNbrPriority
DesignatedRouterPriority,
ospfv3CfgNbrRowStatus
RowStatus
}
ospfv3CfgNbrIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Local Link ID of the link over which the
neighbor can be reached."
::= { ospfv3CfgNbrEntry 1 }
ospfv3CfgNbrIfInstId OBJECT-TYPE
SYNTAX Ospfv3IfInstIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Interface instance over which the neighbor
can be reached. This ID has local link
significance only."
::= { ospfv3CfgNbrEntry 2 }
ospfv3CfgNbrAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The address type of ospfv3NbrAddress. Only IPv6
addresses without zone index are expected."
::= { ospfv3CfgNbrEntry 3 }
ospfv3CfgNbrAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IPv6 address of the neighbor associated with
the local link."
::= { ospfv3CfgNbrEntry 4 }
ospfv3CfgNbrPriority OBJECT-TYPE
SYNTAX DesignatedRouterPriority
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The priority of this neighbor in the designated-
router election algorithm. The value 0 signifies
that the neighbor is not eligible to become the
Designated Router on this particular network."
DEFVAL { 1 }
::= { ospfv3CfgNbrEntry 5 }
ospfv3CfgNbrRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object permits management of the table by
facilitating actions such as row creation,
construction, and destruction.
The value of this object has no effect on
whether other objects in this conceptual row can be
modified."
::= { ospfv3CfgNbrEntry 6 }
-- OSPFv3 Virtual Neighbor Table
ospfv3VirtNbrTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3VirtNbrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table describing all virtual neighbors."
REFERENCE
"OSPF Version 2, Section 15, Virtual Links"
::= { ospfv3Objects 11 }
ospfv3VirtNbrEntry OBJECT-TYPE
SYNTAX Ospfv3VirtNbrEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Virtual neighbor information."
INDEX { ospfv3VirtNbrArea,
ospfv3VirtNbrRtrId }
::= { ospfv3VirtNbrTable 1 }
Ospfv3VirtNbrEntry ::= SEQUENCE {
ospfv3VirtNbrArea
Ospfv3AreaIdTC,
ospfv3VirtNbrRtrId
Ospfv3RouterIdTC,
ospfv3VirtNbrIfIndex
InterfaceIndex,
ospfv3VirtNbrIfInstId
Ospfv3IfInstIdTC,
ospfv3VirtNbrAddressType
InetAddressType,
ospfv3VirtNbrAddress
InetAddress,
ospfv3VirtNbrOptions
Integer32,
ospfv3VirtNbrState
INTEGER,
ospfv3VirtNbrEvents
Counter32,
ospfv3VirtNbrLsRetransQLen
Gauge32,
ospfv3VirtNbrHelloSuppressed
TruthValue,
ospfv3VirtNbrIfId
InterfaceIndex,
ospfv3VirtNbrRestartHelperStatus
INTEGER,
ospfv3VirtNbrRestartHelperAge
Ospfv3UpToRefreshIntervalTC,
ospfv3VirtNbrRestartHelperExitReason
INTEGER
}
ospfv3VirtNbrArea OBJECT-TYPE
SYNTAX Ospfv3AreaIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The transit area Identifier."
::= { ospfv3VirtNbrEntry 1 }
ospfv3VirtNbrRtrId OBJECT-TYPE
SYNTAX Ospfv3RouterIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A 32-bit integer uniquely identifying the
neighboring router in the Autonomous System."
::= { ospfv3VirtNbrEntry 2 }
ospfv3VirtNbrIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The local Interface ID for the virtual link over
which the neighbor can be reached."
::= { ospfv3VirtNbrEntry 3 }okay bestie, we're still deep in the virtual neighbor stuff 🦋 Here's the next chunk of the MIB, and it's a lot of fields, so let's go!
ospfv3VirtNbrIfInstId OBJECT-TYPE
SYNTAX Ospfv3IfInstIdTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The interface instance for the virtual link over
which the neighbor can be reached."
::= { ospfv3VirtNbrEntry 4 }
ospfv3VirtNbrAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The address type of ospfv3VirtNbrAddress. Only IPv6
addresses without zone index are expected."
::= { ospfv3VirtNbrEntry 5 }
ospfv3VirtNbrAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The IPv6 address advertised by this virtual neighbor.
It must be a global scope address."
::= { ospfv3VirtNbrEntry 6 }
ospfv3VirtNbrOptions OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A bit mask corresponding to the neighbor's options
field."
REFERENCE
"OSPF for IPv6, Appendix A.2, The Options Field"
::= { ospfv3VirtNbrEntry 7 }
ospfv3VirtNbrState OBJECT-TYPE
SYNTAX INTEGER {
down(1),
attempt(2),
init(3),
twoWay(4),
exchangeStart(5),
exchange(6),
loading(7),
full(8)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The state of the virtual neighbor relationship."
::= { ospfv3VirtNbrEntry 8 }
ospfv3VirtNbrEvents OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times this virtual link has
changed its state or an error has occurred.
Discontinuities in the value of this counter
can occur at re-initialization of the management
system and at other times as indicated by the
value of ospfv3DiscontinuityTime."
::= { ospfv3VirtNbrEntry 9 }
ospfv3VirtNbrLsRetransQLen OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current length of the retransmission
queue."
::= { ospfv3VirtNbrEntry 10 }
ospfv3VirtNbrHelloSuppressed OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates whether Hellos are being suppressed
to the neighbor."
::= { ospfv3VirtNbrEntry 11 }
ospfv3VirtNbrIfId OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Interface ID that the neighbor advertises
in its Hello packets on this virtual link, that is,
the neighbor's local Interface ID."
::= { ospfv3VirtNbrEntry 12 }So this bit covers the virtual neighbor's interface instance, address type and address, options, state, events counter, retransmission queue length, Hello suppression, and interface ID. ✨ Notice the address has to be a global scope one, and the address type is only IPv6 without a zone index 🌸
The restart helper fields come next, and they're giving graceful restart vibes 🔥
ospfv3VirtNbrRestartHelperStatus OBJECT-TYPE
SYNTAX INTEGER { notHelping(1),
helping(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Indicates whether the router is acting
as a graceful restart helper for the neighbor."
::= { ospfv3VirtNbrEntry 13 }
ospfv3VirtNbrRestartHelperAge OBJECT-TYPE
SYNTAX Ospfv3UpToRefreshIntervalTC
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Remaining time in the current OSPF graceful restart
interval, if the router is acting as a restart
helper for the neighbor."
::= { ospfv3VirtNbrEntry 14 }
ospfv3VirtNbrRestartHelperExitReason OBJECT-TYPE
SYNTAX INTEGER { none(1),
inProgress(2),
completed(3),
timedOut(4),
topologyChanged(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Describes the outcome of the last attempt at acting
as a graceful restart helper for the neighbor.
none: no restart has yet been attempted.
inProgress: a restart attempt is currently underway.
completed: the last restart completed successfully.
timedOut: the last restart timed out.
topologyChanged: the last restart was aborted due to
a topology change."
::= { ospfv3VirtNbrEntry 15 }
--
-- The OSPFv3 Area Aggregate Table
--So the helper status tells you if the router is helping a neighbor restart, the age is how much time is left in that restart window, and the exit reason says how the last attempt turned out: none, inProgress, completed, timedOut, or topologyChanged 💅
Now the Area Aggregate Table. It's basically the bouncer for address aggregates going out of an area, so the stuff beyond the borders stays small 🧚 It's indexed by area ID, LSDB type, prefix type, prefix, and prefix length, and if one range swallows another, the most specific match wins 👑
ospfv3AreaAggregateTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3AreaAggregateEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Area Aggregate Table acts as an adjunct
to the Area Table. It describes those address
aggregates that are configured to be propagated
from an area. Its purpose is to reduce the amount
of information that is known beyond an area's
borders.
A range of IPv6 prefixes specified by a
prefix / prefix length pair. Note that if
ranges are configured such that one range
subsumes another range, the most specific
match is the preferred one."
::= { ospfv3Objects 12 }
ospfv3AreaAggregateEntry OBJECT-TYPE
SYNTAX Ospfv3AreaAggregateEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A single area aggregate entry.
Information in this table is persistent, and
when this object is written, the entity SHOULD
save the change to non-volatile storage."
REFERENCE
"OSPF Version 2, Appendix C.2, Area parameters"
INDEX { ospfv3AreaAggregateAreaID,
ospfv3AreaAggregateAreaLsdbType,
ospfv3AreaAggregatePrefixType,
ospfv3AreaAggregatePrefix,
ospfv3AreaAggregatePrefixLength }
::= { ospfv3AreaAggregateTable 1 }
Ospfv3AreaAggregateEntry ::= SEQUENCE {
ospfv3AreaAggregateAreaID
Ospfv3AreaIdTC,
ospfv3AreaAggregateAreaLsdbType
INTEGER,
ospfv3AreaAggregatePrefixType
InetAddressType,
ospfv3AreaAggregatePrefix
InetAddress,
ospfv3AreaAggregatePrefixLength
InetAddressPrefixLength,
ospfv3AreaAggregateRowStatus
RowStatus,
ospfv3AreaAggregateEffect
INTEGER,
ospfv3AreaAggregateRouteTag
Unsigned32
}
ospfv3AreaAggregateAreaID OBJECT-TYPE
SYNTAX Ospfv3AreaIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The area the Address Aggregate is to be found
within."
REFERENCE
"OSPF Version 2, Appendix C.2, Area parameters"
::= { ospfv3AreaAggregateEntry 1 }
ospfv3AreaAggregateAreaLsdbType OBJECT-TYPE
SYNTAX INTEGER {
interAreaPrefixLsa(8195), -- 0x2003
nssaExternalLsa(8199) -- 0x2007
}
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of the Address Aggregate. This field
specifies the Area LSDB type that this Address
Aggregate applies to."
REFERENCE
"OSPF Version 2, Appendix A.4.1, The LSA header"
::= { ospfv3AreaAggregateEntry 2 }
ospfv3AreaAggregatePrefixType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The prefix type of ospfv3AreaAggregatePrefix. Only
IPv6 addresses are expected."
::= { ospfv3AreaAggregateEntry 3 }
ospfv3AreaAggregatePrefix OBJECT-TYPE
SYNTAX InetAddress (SIZE (0..16))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The IPv6 prefix."
REFERENCE
"OSPF Version 2, Appendix C.2, Area parameters"
::= { ospfv3AreaAggregateEntry 4 }
ospfv3AreaAggregatePrefixLength OBJECT-TYPE
SYNTAX InetAddressPrefixLength (3..128)
UNITS "bits"
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The length of the prefix (in bits). A prefix can
not be shorter than 3 bits."
REFERENCE
"OSPF Version 2, Appendix C.2, Area parameters"
::= { ospfv3AreaAggregateEntry 5 }
ospfv3AreaAggregateRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object permits management of the table by
facilitating actions such as row creation,
construction, and destruction.
The value of this object has no effect on
whether other objects in this conceptual row can be
modified."
::= { ospfv3AreaAggregateEntry 6 }
ospfv3AreaAggregateEffect OBJECT-TYPE
SYNTAX INTEGER {
advertiseMatching(1),
doNotAdvertiseMatching(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Prefixes subsumed by ranges will either trigger the
advertisement of the indicated aggregate
(advertiseMatching) or result in the prefix not
being advertised at all outside the area."
DEFVAL { advertiseMatching }
::= { ospfv3AreaAggregateEntry 7 }
ospfv3AreaAggregateRouteTag OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This tag is advertised only in the summarized
As-External LSA when summarizing from NSSA-LSAs to
AS-External-LSAs."
DEFVAL { 0 }
::= { ospfv3AreaAggregateEntry 8 }
-- OSPFv3 Link-Scope Link State Database, for virtual interfacesQuick heads-up on the aggregate entries: the prefix length has to be at least 3 bits, and the area aggregate effect defaults to advertiseMatching ✨ The route tag only shows up in the summarized AS-External LSA when summarizing from NSSA-LSAs, which is such a specific little detail and I'm obsessed 🙈
okay so we're still deep in the MIB definitions 🎀 this part is all about the Virtual Link LSDB table, which is basically a little folder of Link-scope LSAs for virtual interfaces 🦋 let's get into it 💅
ospfv3VirtLinkLsdbTable OBJECT-TYPE
SYNTAX SEQUENCE OF Ospfv3VirtLinkLsdbEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The OSPFv3 Process's Link-scope LSDB for virtual
interfaces. The LSDB contains the Link-scope link
state advertisements from virtual interfaces."
::= { ospfv3Objects 13 }
ospfv3VirtLinkLsdbEntry OBJECT-TYPE
SYNTAX Ospfv3VirtLinkLsdbEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A single Link-scope link state advertisement
for a virtual interface."
INDEX { ospfv3VirtLinkLsdbIfAreaId,
ospfv3VirtLinkLsdbIfNeighbor,
ospfv3VirtLinkLsdbType,
ospfv3VirtLinkLsdbRouterId,
ospfv3VirtLinkLsdbLsid }
::= { ospfv3VirtLinkLsdbTable 1 }
Ospfv3VirtLinkLsdbEntry ::= SEQUENCE {
ospfv3VirtLinkLsdbIfAreaId
Ospfv3AreaIdTC,
ospfv3VirtLinkLsdbIfNeighbor
Ospfv3RouterIdTC,
ospfv3VirtLinkLsdbType
Unsigned32,
ospfv3VirtLinkLsdbRouterId
Ospfv3RouterIdTC,
ospfv3VirtLinkLsdbLsid
Ospfv3LsIdTC,
ospfv3VirtLinkLsdbSequence
Ospfv3LsaSequenceTC,
ospfv3VirtLinkLsdbAge
Ospfv3LsaAgeTC,
ospfv3VirtLinkLsdbChecksum
Integer32,
ospfv3VirtLinkLsdbAdvertisement
OCTET STRING,
ospfv3VirtLinkLsdbTypeKnown
TruthValue
}
ospfv3VirtLinkLsdbIfAreaId OBJECT-TYPE
SYNTAX Ospfv3AreaIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The transit area that the virtual link
traverses. By definition, this is not
Area 0."
::= { ospfv3VirtLinkLsdbEntry 1 }
ospfv3VirtLinkLsdbIfNeighbor OBJECT-TYPE
SYNTAX Ospfv3RouterIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Router ID of the virtual neighbor."
::= { ospfv3VirtLinkLsdbEntry 2 }
ospfv3VirtLinkLsdbType OBJECT-TYPE
SYNTAX Unsigned32(0..'FFFFFFFF'h)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The type of the link state advertisement.
Each link state type has a separate
advertisement format. Link-scope LSAs unrecognized
by the router are also stored in this database."
::= { ospfv3VirtLinkLsdbEntry 3 }
ospfv3VirtLinkLsdbRouterId OBJECT-TYPE
SYNTAX Ospfv3RouterIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The 32-bit number that uniquely identifies the
originating router in the Autonomous System."
REFERENCE
"OSPF Version 2, Appendix C.1, Global parameters"
::= { ospfv3VirtLinkLsdbEntry 4 }
ospfv3VirtLinkLsdbLsid OBJECT-TYPE
SYNTAX Ospfv3LsIdTC
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Link State ID is an LS type-specific field
containing a unique identifier;
it identifies the piece of the routing domain
that is being described by the advertisement.
In contrast to OSPFv2, the LSID has no
addressing semantics."
::= { ospfv3VirtLinkLsdbEntry 5 }
-- Note that the OSPF sequence number is a 32-bit signed
-- integer. It starts with the value '80000001'h
-- or -'7FFFFFFF'h, and increments until '7FFFFFFF'h.
-- Thus, a typical sequence number will be very negative.
ospfv3VirtLinkLsdbSequence OBJECT-TYPE
SYNTAX Ospfv3LsaSequenceTC
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The sequence number field is a signed 32-bit
integer. It is used to detect old and duplicate
link state advertisements. The space of
sequence numbers is linearly ordered. The
larger the sequence number, the more recent the
advertisement."
REFERENCE
"OSPF Version 2, Section 12.1.6, LS sequence
number"
::= { ospfv3VirtLinkLsdbEntry 6 }
ospfv3VirtLinkLsdbAge OBJECT-TYPE
SYNTAX Ospfv3LsaAgeTC
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This field is the age of the link state
advertisement in seconds. The high-order bit
of the LS age field is considered the DoNotAge
bit for support of on-demand circuits."
REFERENCE
"OSPF Version 2, Section 12.1.1, LS age;
Extending OSPF to Support Demand Circuits,
Section 2.2, The LS age field."
::= { ospfv3VirtLinkLsdbEntry 7 }
ospfv3VirtLinkLsdbChecksum OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This field is the checksum of the complete
contents of the advertisement, excepting the
age field. The age field is excepted so that
an advertisement's age can be incremented
without updating the checksum. The checksum
used is the same that is used for ISO
connectionless datagrams; it is commonly
referred to as the Fletcher checksum."
REFERENCE
"OSPF Version 2, Section 12.1.7, LS checksum"
::= { ospfv3VirtLinkLsdbEntry 8 }
ospfv3VirtLinkLsdbAdvertisement OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (1..65535))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The entire link state advertisement, including
its header."
::= { ospfv3VirtLinkLsdbEntry 9 }
ospfv3VirtLinkLsdbTypeKnown OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value true (1) indicates that the LSA type is
recognized by this router."
::= { ospfv3VirtLinkLsdbEntry 10 }next up is the Notification Table, which is where the router keeps the bits it needs for notifications 🔔 it's giving organised 💅
-- The Ospfv3 Notification Table
-- The Ospfv3 Notification Table records fields that are
-- required for notifications.
ospfv3NotificationEntry OBJECT IDENTIFIER
::= { ospfv3Objects 14 }
ospfv3ConfigErrorType OBJECT-TYPE
SYNTAX INTEGER {
badVersion(1),
areaMismatch(2),
unknownNbmaNbr(3), -- Router is DR eligible
unknownVirtualNbr(4),
helloIntervalMismatch(5),
deadIntervalMismatch(6),
optionMismatch(7),
mtuMismatch(8),
duplicateRouterId(9),
noError(10) }
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"Potential types of configuration conflicts.
Used by the ospfv3ConfigError and
ospfv3ConfigVirtError notifications."
::= { ospfv3NotificationEntry 1 }
ospfv3PacketType OBJECT-TYPE
SYNTAX INTEGER {
hello(1),
dbDescript(2),
lsReq(3),
lsUpdate(4),
lsAck(5),
nullPacket(6) }
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"OSPFv3 packet types."
::= { ospfv3NotificationEntry 2 }
ospfv3PacketSrc OBJECT-TYPE
SYNTAX InetAddressIPv6
MAX-ACCESS accessible-for-notify
STATUS current
DESCRIPTION
"The IPv6 address of an inbound packet that cannot
be identified by a neighbor instance.
Only IPv6 addresses without zone index are expected."
::= { ospfv3NotificationEntry 3 }
-- Notification Definitions
-- The notifications need to be throttled so as to not overwhelm the
-- management agent in case of rapid changes to the OSPFv3 module.
ospfv3VirtIfStateChange NOTIFICATION-TYPE
OBJECTS { ospfv3RouterId, -- The originator of the notification
ospfv3VirtIfState -- The new state
}
STATUS current
DESCRIPTION
"An ospfv3VirtIfStateChange notification signifies that
there has been a change in the state of an OSPFv3 virtual
interface.
This notification should be generated when the interface
state regresses (e.g., goes from Point-to-Point to Down)
or progresses to a terminal state (i.e., Point-to-Point)."
::= { ospfv3Notifications 1 }
ospfv3NbrStateChange NOTIFICATION-TYPE
OBJECTS { ospfv3RouterId, -- The originator of the notification
ospfv3NbrState -- The new state
}
STATUS current
DESCRIPTION
"An ospfv3NbrStateChange notification signifies that
there has been a change in the state of a
non-virtual OSPFv3 neighbor. This notification should be
generated when the neighbor state regresses
(e.g., goes from Attempt or Full to 1-Way or
Down) or progresses to a terminal state (e.g.,
2-Way or Full). When a neighbor transitions
from or to Full on non-broadcast multi-access
and broadcast networks, the notification should be
generated by the Designated Router. A Designated
Router transitioning to Down will be noted by
ospfIfStateChange."
::= { ospfv3Notifications 2 }
ospfv3VirtNbrStateChange NOTIFICATION-TYPE
OBJECTS { ospfv3RouterId, -- The originator of the notification
ospfv3VirtNbrState -- The new state
}
STATUS current
DESCRIPTION
"An ospfv3VirtNbrStateChange notification signifies
that there has been a change in the state of an OSPFv3
virtual neighbor. This notification should be generated
when the neighbor state regresses (e.g., goes
from Attempt or Full to 1-Way or Down) or
progresses to a terminal state (e.g., Full)."
::= { ospfv3Notifications 3 }ospfv3IfConfigError NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3IfState, -- State of the interface ospfv3PacketSrc, -- IPv6 address of source ospfv3ConfigErrorType, -- Type of error ospfv3PacketType -- Type of packet } STATUS current DESCRIPTION "An ospfv3IfConfigError notification signifies that a packet has been received on a non-virtual interface from a router whose configuration parameters conflict with this router's configuration parameters. Note that the event optionMismatch should cause a notification only if it prevents an adjacency from forming." ::= { ospfv3Notifications 4 }
ospfv3VirtIfConfigError NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3VirtIfState, -- State of the interface ospfv3ConfigErrorType, -- Type of error ospfv3PacketType } STATUS current DESCRIPTION "An ospfv3VirtIfConfigError notification signifies that a packet has been received on a virtual interface from a router whose configuration parameters conflict with this router's configuration parameters. Note that the event optionMismatch should cause a notification only if it prevents an adjacency from forming." ::= { ospfv3Notifications 5 }
ospfv3IfRxBadPacket NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3IfState, -- State of the interface ospfv3PacketSrc, -- The source IPv6 address ospfv3PacketType -- Type of packet } STATUS current DESCRIPTION "An ospfv3IfRxBadPacket notification signifies that an OSPFv3 packet that cannot be parsed has been received on a non-virtual interface." ::= { ospfv3Notifications 6 }
ospfv3VirtIfRxBadPacket NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3VirtIfState, -- State of the interface ospfv3PacketType -- Type of packet } STATUS current DESCRIPTION "An ospfv3VirtIfRxBadPacket notification signifies that an OSPFv3 packet that cannot be parsed has been received on a virtual interface." ::= { ospfv3Notifications 7 }
ospfv3LsdbOverflow NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3ExtAreaLsdbLimit -- Limit on External LSAs } STATUS current DESCRIPTION "An ospfv3LsdbOverflow notification signifies that the number of LSAs in the router's link state database has exceeded ospfv3ExtAreaLsdbLimit." ::= { ospfv3Notifications 8 }
ospfv3LsdbApproachingOverflow NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3ExtAreaLsdbLimit } STATUS current DESCRIPTION "An ospfv3LsdbApproachingOverflow notification signifies that the number of LSAs in the router's link state database has exceeded ninety percent of ospfv3ExtAreaLsdbLimit." ::= { ospfv3Notifications 9 }
ospfv3IfStateChange NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3IfState -- The new state } STATUS current DESCRIPTION "An ospfv3IfStateChange notification signifies that there has been a change in the state of a non-virtual OSPFv3 interface. This notification should be generated when the interface state regresses (e.g., goes from DR to Down) or progresses to a terminal state (i.e., Point-to-Point, DR Other, DR, or Backup)." ::= { ospfv3Notifications 10 }
ospfv3NssaTranslatorStatusChange NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3AreaNssaTranslatorState -- new state } STATUS current DESCRIPTION "An ospfv3NssaTranslatorStatusChange notification indicates that there has been a change in the router's ability to translate OSPFv3 NSSA LSAs into OSPFv3 External LSAs. This notification should be generated when the Translator Status transitions from or to any defined status on a per-area basis." ::= { ospfv3Notifications 11 }
ospfv3RestartStatusChange NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3RestartStatus, -- new status ospfv3RestartInterval, ospfv3RestartExitReason } STATUS current DESCRIPTION "An ospfv3RestartStatusChange notification signifies that there has been a change in the graceful restart state for the router. This notification should be generated when the router restart status changes." ::= { ospfv3Notifications 12 }
ospfv3NbrRestartHelperStatusChange NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3NbrRestartHelperStatus, -- new status ospfv3NbrRestartHelperAge, ospfv3NbrRestartHelperExitReason } STATUS current DESCRIPTION "An ospfv3NbrRestartHelperStatusChange notification signifies that there has been a change in the graceful restart helper state for the neighbor. This notification should be generated when the neighbor restart helper status transitions for a neighbor." ::= { ospfv3Notifications 13 }
ospfv3VirtNbrRestartHelperStatusChange NOTIFICATION-TYPE OBJECTS { ospfv3RouterId, -- The originator of the notification ospfv3VirtNbrRestartHelperStatus, -- new status ospfv3VirtNbrRestartHelperAge, ospfv3VirtNbrRestartHelperExitReason } STATUS current DESCRIPTION "An ospfv3VirtNbrRestartHelperStatusChange notification signifies that there has been a change in the graceful restart helper state for the virtual neighbor. This notification should be generated when the virtual neighbor restart helper status transitions for a virtual neighbor." ::= { ospfv3Notifications 14 }
-- Conformance Information ospfv3Groups OBJECT IDENTIFIER ::= { ospfv3Conformance 1 } ospfv3Compliances OBJECT IDENTIFIER ::= { ospfv3Conformance 2 }
-- Compliance Statements
ospfv3FullCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "The compliance statement" MODULE -- this module MANDATORY-GROUPS { ospfv3BasicGroup, ospfv3AreaGroup, ospfv3IfGroup, ospfv3VirtIfGroup, ospfv3NbrGroup, ospfv3CfgNbrGroup, ospfv3VirtNbrGroup, ospfv3AreaAggregateGroup }
GROUP ospfv3AsLsdbGroup DESCRIPTION "This group is required for OSPFv3 systems that display their AS-scope link state database."
GROUP ospfv3AreaLsdbGroup DESCRIPTION "This group is required for OSPFv3 systems that display their Area-scope link state database."
GROUP ospfv3LinkLsdbGroup DESCRIPTION "This group is required for OSPFv3 systems that display their Link-scope link state database for non-virtual interfaces."
GROUP ospfv3VirtLinkLsdbGroup DESCRIPTION "This group is required for OSPFv3 systems that display their Link-scope link state database for virtual interfaces."
GROUP ospfv3HostGroup DESCRIPTION "This group is required for OSPFv3 systems that support attached hosts."
GROUP ospfv3NotificationObjectGroup DESCRIPTION "This group is required for OSPFv3 systems that support OSPFv3 notifications."
GROUP ospfv3NotificationGroup DESCRIPTION "This group is required for OSPFv3 systems that support OSPFv3 notifications."
OBJECT ospfv3NbrAddressType SYNTAX InetAddressType { ipv6(2) } DESCRIPTION "An implementation is only required to support IPv6 address without zone index."
OBJECT ospfv3NbrAddress SYNTAX InetAddress (SIZE (16)) DESCRIPTION "An implementation is only required to support IPv6 address without zone index."
OBJECT ospfv3VirtNbrAddressType SYNTAX InetAddressType { ipv6(2) } DESCRIPTION "An implementation is only required to support IPv6 address without zone index."
OBJECT ospfv3VirtNbrAddress SYNTAX InetAddress (SIZE (16)) DESCRIPTION "An implementation is only required to support IPv6 address without zone index."
::= { ospfv3Compliances 1 }
ospfv3ReadOnlyCompliance MODULE-COMPLIANCE STATUS current DESCRIPTION "When this MIB module is implemented without support for read-create (i.e., in read-only mode), the implementation can claim read-only compliance. Such a device can then be monitored, but cannot be configured with this MIB."
MODULE -- this module MANDATORY-GROUPS { ospfv3BasicGroup, ospfv3AreaGroup, ospfv3IfGroup, ospfv3VirtIfGroup, ospfv3NbrGroup, ospfv3CfgNbrGroup, ospfv3VirtNbrGroup, ospfv3AreaAggregateGroup }
GROUP ospfv3AsLsdbGroup DESCRIPTION "This group is required for OSPFv3 systems that display their AS-scope link state database."
GROUP ospfv3AreaLsdbGroup DESCRIPTION "This group is required for OSPFv3 systems that display their Area-scope link state database."
GROUP ospfv3LinkLsdbGroup DESCRIPTION "This group is required for OSPFv3 systems that display their Link-scope link state database for non-virtual interfaces."
GROUP ospfv3VirtLinkLsdbGroup DESCRIPTION "This group is required for OSPFv3 systems that display their Link-scope link state database for virtual interfaces."
okay so we're still in the compliance section, and this bit lists the optional groups plus a read-only minimum-access rule for a whole pile of objects 🎀 basically, if your system supports attached hosts or OSPFv3 notifications, you need these groups, and the write-access stuff is never required 💅
GROUP ospfv3HostGroup
DESCRIPTION
"This group is required for OSPFv3 systems that
support attached hosts."
GROUP ospfv3NotificationObjectGroup
DESCRIPTION
"This group is required for OSPFv3 systems that
support OSPFv3 notifications."
GROUP ospfv3NotificationGroup
DESCRIPTION
"This group is required for OSPFv3 systems that
support OSPFv3 notifications."
OBJECT ospfv3RouterId
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AdminStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3ExtAreaLsdbLimit
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3ExitOverflowInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3DemandExtensions
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3ReferenceBandwidth
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3RestartSupport
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3RestartInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3RestartStrictLsaChecking
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3NotificationEnable
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3StubRouterAdvertisement
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaImportAsExtern
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaSummary
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaStubMetric
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaNssaTranslatorRole
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaNssaTranslatorStabInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaStubMetricType
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaTEEnabled
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3HostMetric
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3HostRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3HostAreaID
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfAreaId
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfType
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfAdminStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfRtrPriority
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfTransitDelay
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfRetransInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfHelloInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfRtrDeadInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfPollInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfDemand
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfMetricValue
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfDemandNbrProbe
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfDemandNbrProbeRetransLimit
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfDemandNbrProbeInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfTEDisabled
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3IfLinkLSASuppression
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3VirtIfTransitDelay
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3VirtIfRetransInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3VirtIfHelloInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3VirtIfRtrDeadInterval
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3VirtIfRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3CfgNbrPriority
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3CfgNbrRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaAggregateRowStatus
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaAggregateEffect
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
OBJECT ospfv3AreaAggregateRouteTag
MIN-ACCESS read-only
DESCRIPTION
"Write access is not required."
::= { ospfv3Compliances 2 }
-- units of conformance
ospfv3BasicGroup OBJECT-GROUP
OBJECTS {
ospfv3RouterId,
ospfv3AdminStatus,
ospfv3VersionNumber,
ospfv3AreaBdrRtrStatus,
ospfv3ASBdrRtrStatus,
ospfv3AsScopeLsaCount,
ospfv3AsScopeLsaCksumSum,
ospfv3OriginateNewLsas,
ospfv3RxNewLsas,
ospfv3ExtLsaCount,
ospfv3ExtAreaLsdbLimit,
ospfv3ExitOverflowInterval,
ospfv3DemandExtensions,
ospfv3ReferenceBandwidth,
ospfv3RestartSupport,
ospfv3RestartInterval,
ospfv3RestartStrictLsaChecking,
ospfv3RestartStatus,
ospfv3RestartAge,
ospfv3RestartExitReason,
ospfv3NotificationEnable,
ospfv3StubRouterSupport,
ospfv3StubRouterAdvertisement,
ospfv3DiscontinuityTime,
ospfv3RestartTime
}
STATUS current
DESCRIPTION
"These objects are used for managing/monitoring
OSPFv3 global parameters."
::= { ospfv3Groups 1 }
ospfv3AreaGroup OBJECT-GROUP
OBJECTS {
ospfv3AreaImportAsExtern,
ospfv3AreaSpfRuns,
ospfv3AreaBdrRtrCount,
ospfv3AreaAsBdrRtrCount,
ospfv3AreaScopeLsaCount,
ospfv3AreaScopeLsaCksumSum,
ospfv3AreaSummary,
ospfv3AreaRowStatus,
ospfv3AreaStubMetric,
ospfv3AreaNssaTranslatorRole,
ospfv3AreaNssaTranslatorState,
ospfv3AreaNssaTranslatorStabInterval,
ospfv3AreaNssaTranslatorEvents,
ospfv3AreaStubMetricType,
ospfv3AreaTEEnabled
}
STATUS current
DESCRIPTION
"These objects are used for OSPFv3 systems
supporting areas."
::= { ospfv3Groups 2 }
ospfv3AsLsdbGroup OBJECT-GROUP
OBJECTS {
ospfv3AsLsdbSequence,
ospfv3AsLsdbAge,
ospfv3AsLsdbChecksum,
ospfv3AsLsdbAdvertisement,
ospfv3AsLsdbTypeKnown
}
STATUS current
DESCRIPTION
"These objects are used for OSPFv3 systems
that display their AS-scope link state database."
::= { ospfv3Groups 3 }
ospfv3AreaLsdbGroup OBJECT-GROUP
OBJECTS {
ospfv3AreaLsdbSequence,
ospfv3AreaLsdbAge,
ospfv3AreaLsdbChecksum,
ospfv3AreaLsdbAdvertisement,
ospfv3AreaLsdbTypeKnown
}
STATUS current
DESCRIPTION
"These objects are used for OSPFv3 systems
that display their Area-scope link state database."
::= { ospfv3Groups 4 }
ospfv3LinkLsdbGroup OBJECT-GROUP
OBJECTS {
ospfv3LinkLsdbSequence,
ospfv3LinkLsdbAge,
ospfv3LinkLsdbChecksum,
ospfv3LinkLsdbAdvertisement,
ospfv3LinkLsdbTypeKnown
}
STATUS current
DESCRIPTION
"These objects are used for OSPFv3 systems
that display their Link-scope link state database
for non-virtual interfaces."
::= { ospfv3Groups 5 } ospfv3HostGroup OBJECT-GROUP
OBJECTS {
ospfv3HostMetric,
ospfv3HostRowStatus,
ospfv3HostAreaID
}
STATUS current
DESCRIPTION
"These objects are used for OSPFv3 systems
that support attached hosts."
::= { ospfv3Groups 6 }
ospfv3IfGroup OBJECT-GROUP
OBJECTS {
ospfv3IfAreaId,
ospfv3IfType,
ospfv3IfAdminStatus,
ospfv3IfRtrPriority,
ospfv3IfTransitDelay,
ospfv3IfRetransInterval,
ospfv3IfHelloInterval,
ospfv3IfRtrDeadInterval,
ospfv3IfPollInterval,
ospfv3IfState,
ospfv3IfDesignatedRouter,
ospfv3IfBackupDesignatedRouter,
ospfv3IfEvents,
ospfv3IfRowStatus,
ospfv3IfDemand,
ospfv3IfMetricValue,
ospfv3IfLinkScopeLsaCount,
ospfv3IfLinkLsaCksumSum,
ospfv3IfDemandNbrProbe,
ospfv3IfDemandNbrProbeRetransLimit,
ospfv3IfDemandNbrProbeInterval,
ospfv3IfTEDisabled,
ospfv3IfLinkLSASuppression
}
STATUS current
DESCRIPTION
"These interface objects are used for
managing/monitoring OSPFv3 interfaces."
::= { ospfv3Groups 7 }
ospfv3VirtIfGroup OBJECT-GROUP
OBJECTS {
ospfv3VirtIfIndex,
ospfv3VirtIfInstId,
ospfv3VirtIfTransitDelay,
ospfv3VirtIfRetransInterval,
ospfv3VirtIfHelloInterval,
ospfv3VirtIfRtrDeadInterval,
ospfv3VirtIfState,
ospfv3VirtIfEvents,
ospfv3VirtIfRowStatus,
ospfv3VirtIfLinkScopeLsaCount,
ospfv3VirtIfLinkLsaCksumSum
}
STATUS current
DESCRIPTION
"These virtual interface objects are used for
managing/monitoring OSPFv3 virtual interfaces."
::= { ospfv3Groups 8 }
ospfv3NbrGroup OBJECT-GROUP
OBJECTS {
ospfv3NbrAddressType,
ospfv3NbrAddress,
ospfv3NbrOptions,
ospfv3NbrPriority,
ospfv3NbrState,
ospfv3NbrEvents,
ospfv3NbrLsRetransQLen,
ospfv3NbrHelloSuppressed,
ospfv3NbrIfId,
ospfv3NbrRestartHelperStatus,
ospfv3NbrRestartHelperAge,
ospfv3NbrRestartHelperExitReason
}
STATUS current
DESCRIPTION
"These neighbor objects are used for
managing/monitoring OSPFv3 neighbors."
::= { ospfv3Groups 9 }
ospfv3CfgNbrGroup OBJECT-GROUP
OBJECTS {
ospfv3CfgNbrPriority,
ospfv3CfgNbrRowStatus
}
STATUS current
DESCRIPTION
"These configured neighbor objects are used for
managing/monitoring OSPFv3-configured neighbors."
::= { ospfv3Groups 10 }
ospfv3VirtNbrGroup OBJECT-GROUP
OBJECTS {
ospfv3VirtNbrIfIndex,
ospfv3VirtNbrIfInstId,
ospfv3VirtNbrAddressType,
ospfv3VirtNbrAddress,
ospfv3VirtNbrOptions,
ospfv3VirtNbrState,
ospfv3VirtNbrEvents,
ospfv3VirtNbrLsRetransQLen,
ospfv3VirtNbrHelloSuppressed,
ospfv3VirtNbrIfId,
ospfv3VirtNbrRestartHelperStatus,
ospfv3VirtNbrRestartHelperAge,
ospfv3VirtNbrRestartHelperExitReason
}
STATUS current
DESCRIPTION
"These virtual neighbor objects are used for
managing/monitoring OSPFv3 virtual neighbors."
::= { ospfv3Groups 11 }
ospfv3AreaAggregateGroup OBJECT-GROUP
OBJECTS {
ospfv3AreaAggregateRowStatus,
ospfv3AreaAggregateEffect,
ospfv3AreaAggregateRouteTag
}
STATUS current
DESCRIPTION
"These area aggregate objects are required for
aggregating OSPFv3 prefixes for summarization
across areas."
::= { ospfv3Groups 12 }
ospfv3VirtLinkLsdbGroup OBJECT-GROUP
OBJECTS {
ospfv3VirtLinkLsdbSequence,
ospfv3VirtLinkLsdbAge,
ospfv3VirtLinkLsdbChecksum,
ospfv3VirtLinkLsdbAdvertisement,
ospfv3VirtLinkLsdbTypeKnown
}
STATUS current
DESCRIPTION
"These objects are used for OSPFv3 systems
that display their Link-scope link state database
for virtual interfaces."
::= { ospfv3Groups 13 }
ospfv3NotificationObjectGroup OBJECT-GROUP
OBJECTS {
ospfv3ConfigErrorType,
ospfv3PacketType,
ospfv3PacketSrc
}
STATUS current
DESCRIPTION
"These objects are used to record notification
parameters."
::= { ospfv3Groups 14 }
ospfv3NotificationGroup NOTIFICATION-GROUP
NOTIFICATIONS {
ospfv3VirtIfStateChange,
ospfv3NbrStateChange,
ospfv3VirtNbrStateChange,
ospfv3IfConfigError,
ospfv3VirtIfConfigError,
ospfv3IfRxBadPacket,
ospfv3VirtIfRxBadPacket,
ospfv3LsdbOverflow,
ospfv3LsdbApproachingOverflow,
ospfv3IfStateChange,
ospfv3NssaTranslatorStatusChange,
ospfv3RestartStatusChange,
ospfv3NbrRestartHelperStatusChange,
ospfv3VirtNbrRestartHelperStatusChange
}
STATUS current
DESCRIPTION
"This group is used for OSPFv3 notifications."
::= { ospfv3Groups 15 }
END6. Security Considerations ✨
okay bestie, this section is seriously important 🚨 so let's get into it 💅. This MIB module has a bunch of management objects with a MAX-ACCESS of read-write and/or read-create 🔧. Those objects can be sensitive or vulnerable in some network environments 😬. If you let SET operations happen in a non-secure environment without proper protection, that can really mess with network operations 💀. Like, improper manipulation of these objects can knock out network connectivity by administratively disabling the entire OSPFv3 entity or individual interfaces, by deleting configured neighbors, by reducing the limit on External LSAs, by changing ASBR status, by manipulating route aggregation, by manipulating interface and route metrics, by changing Hello interval or dead interval, or by changing interface type 😭. Remote monitoring can be defeated by disabling SNMP notifications 🙈. And performance can take a hit from increasing the limit on External LSAs or changing DR/BDR (Designated Router / Backup Designated Router) priority 📉.
Some of the readable objects here (the ones with a MAX-ACCESS other than not-accessible) can also be sensitive or vulnerable in some environments 👀. So it's important to control even GET and/or NOTIFY access to them, and possibly even encrypt their values when they're sent over the network via SNMP 🔐. Unauthorized access to readable objects in this MIB module lets someone discover the network topology and operating parameters 🗺️. That info can be used to target further attacks on the network or to gain a competitive business advantage 🕵️♀️.
SNMP versions prior to SNMPv3 did not include adequate security 🚫. Even if the network itself is secure (for example by using IPsec), there's still no control over who on that secure network can access and GET/SET (read/change/create/delete) the objects in this MIB module 😤.
It is RECOMMENDED that implementers consider the security features provided by the SNMPv3 framework (see [RFC3410], section 8), including full support for the SNMPv3 cryptographic mechanisms (for authentication and privacy) 🛡️✨.
Further, deploying SNMP versions prior to SNMPv3 is NOT RECOMMENDED 🙅♀️. Instead, it is RECOMMENDED to deploy SNMPv3 and enable cryptographic security 🔒💜. It's then a customer/operator responsibility to make sure the SNMP entity giving access to an instance of this MIB module is properly configured, so access to the objects goes only to those principals (users) who have legitimate rights to GET or SET (change/create/delete) them 👑. No one gets in unless they're on the list, periodt 💅.
7. IANA Considerations 🌸
The MIB module in this document uses the following IANA-assigned OBJECT IDENTIFIER values, which are recorded in the SMI Numbers registry 📋:
Descriptor OBJECT IDENTIFIER value
---------- -----------------------
ospfv3MIB { mib-2 191 }8. Acknowledgements 🫶
This document is based on the MIB for OSPF version 2 [RFC4750] 🦋. The editors would like to thank Toshiaki Takada, Ramachandran Radhakrishnan, Harikrishna Golapalli, Mahesh Kurapati, Acee Lindem, Keith McCloghrie, Manish Gupta, Nic Neate, Vanitha N., Vivek Dubey, Ramana Koppula, Boris Benenson, and Hong Zhang for their constructive comments 💖. Special thanks to Joan Cucchiara for her thorough review as the MIB Doctor 👑🌈.
9. References 📚
9.1. Normative References ✨
okay so these are the docs this spec literally can't function without 🫶 the reference list is where the whole family tree lives, bestie 🌳
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC2328] Moy, J., "OSPF Version 2", STD 54, RFC 2328, April 1998.
[RFC2578] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Structure of Management Information Version 2 (SMIv2)",
STD 58, RFC 2578, April 1999.
[RFC2579] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Textual
Conventions for SMIv2", STD 58, RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580, April
1999.
[RFC5340] Coltun, R., Ferguson, D., Moy, J., and A. Lindem, "OSPF for
IPv6", RFC 5340, July 2008.
[RFC4293] Routhier, S., Ed., "Management Information Base for the
Internet Protocol (IP)", RFC 4293, April 2006.
[RFC4750] Joyal, D., Ed., Galecki, P., Ed., Giacalone, S., Ed.,
Coltun, R., and F. Baker, "OSPF Version 2 Management
Information Base", RFC 4750, December 2006.9.2. Informative References ✨
these ones are the extra reading 📚 not strictly required but SO good to have on hand, no cap 💜
[RFC1224] Steinberg, L., "Techniques for managing asynchronously
generated alerts", RFC 1224, May 1991.
[RFC2460] Deering, S. and R. Hinden, "Internet Protocol, Version 6
(IPv6) Specification", RFC 2460, December 1998.
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.
[RFC3411] Harrington, D., Presuhn, R., and B. Wijnen, "An
Architecture for Describing Simple Network Management
Protocol (SNMP) Management Frameworks", STD 62, RFC 3411,
December 2002.
[RFC3413] Levi, D., Meyer, P., and B. Stewart, "Simple Network
Management Protocol (SNMP) Applications", STD 62, RFC 3413,
December 2002.Contributors' Addresses 🎀
these lovely people helped build this, so they get their flowers 💐
Jacek Kwiatkowski
Intel Technology Poland
ul. Slowackiego 173
80-298 Gdansk, Poland
EMail: jacek.kwiatkowski@intel.com
Sebastian Zwolinski
Intel Technology Poland
ul. Slowackiego 173
80-298 Gdansk, Poland
EMail: sebastian.zwolinski@intel.comEditors' Addresses 🦋
and these are the editors who kept the whole thing together 🫶 slay, honestly 👑
Dan Joyal
Nortel
600 Technology Park Drive
Billerica, MA 01821
EMail: djoyal@nortel.com
Vishwas Manral
IP Infusion
Almora, Uttarakhand
India
EMail: vishwas@ipinfusion.com📦 where this page comes from
- ietf: rfc5643 2009-08
- 💖 girlified by claude-haiku-5-5 on : a language model's rewrite of the original, under its terms