RFC 3251

Electricity over IP

๐Ÿ“… published April 2002, from ietf

Electricity over IP โšก๐Ÿ”Œ

Okay bestie, this one is RFC 3251 from the Network Working Group ๐Ÿฆ‹. It was written by B. Rajagopalan of Tellium, Inc., it's dated 1 April 2002 (iykyk ๐Ÿ’€), and its category is Informational. The title block doesn't list anything it obsoletes or updates โœจ.

Status of This Memo ๐Ÿ’…

Lowkey the vibe here is "this is just info, not a standard" ๐Ÿซถ. It provides information for the Internet community, it does not specify an Internet standard of any kind, and distribution of this memo is unlimited ๐ŸŒˆ.

Copyright (C) The Internet Society (2002). All Rights Reserved.

Abstract ๐ŸŒธ

Okay so the main character here is Mostly Pointless Lamp Switching (MPLampS) ๐Ÿ’ก, an architecture for carrying electricity over IP with an MPLS control plane. Our marketing department says it could dramatically lower the price, make distribution and usage way easier, and level up how manageable electricity delivery is ๐Ÿ“ˆ. This doc is inspired by SONET/SDH over IP/MPLS (sorry to those authors ๐Ÿ™ˆ). Readers of that earlier work were seen scratching their heads and going "What next?" ๐Ÿ’€. This document answers that question โœจ.

This document is also a public service ๐Ÿงš. The "Sub-IP" area was formed to give equal opportunity to folks working on technologies outside of traditional IP networking to write complicated IETF documents ๐Ÿ“. Lots of people are wondering how to exploit this opportunity and get high visibility ๐Ÿ‘€. Our take is that topics like "foo-over-MPLS" (or MPLS control for random technologies) are super amenable to producing a countless number of unimplementable documents ๐Ÿ˜ญ. This document shows the key ingredients that go into any "foo-over-MPLS" document, so feel free to use it as a template for all that work ๐Ÿ’–.

1. Conventions used in this document โœจ

Quick note bestie: the key words "MUST", "MUST NOT", "DO", "DON'T", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", "MAY BE" and "OPTIONAL" in this document literally do not mean anything ๐Ÿ’€๐Ÿ™ˆ.

2. Pre-requisite for reading this document ๐Ÿงš

Okay so while you're reading, you might get the urge to ask stuff like "does this make sense?", "is this feasible?", and "is the author sane?" ๐Ÿ˜ญ. Readers must have the ability to suppress those questions and keep going ๐Ÿ’…. Other than that, no specific technical background is needed to read this ๐ŸŒธ. In certain cases (this document included), it may be REQUIRED that readers have no specific technical background ๐Ÿ™ƒ.

3. Introduction ๐Ÿฆ‹

It was recently brought to our attention that the distribution network for electricity is not an IP network! ๐Ÿ˜ฑ After absorbing that shock, we had these thoughts:

  1. Electricity distribution must be based on some outdated technology (called "Legacy Distribution System" or LDS in the rest of the document) ๐Ÿ’€.
  2. An LDS not based on Internet technology means two different networks (electricity and IP) must be administered and managed ๐Ÿ™„. This leads to inefficiencies, higher cost and bureaucratic foul-ups (which possibly lead to blackouts in California. We are in the process of verifying this using simulations as part of a student's MS thesis) ๐Ÿ•ฏ๏ธ.
  3. The above means a single network technology (i.e., IP) must be used to carry both electricity and Internet traffic ๐ŸŒ.
  4. An internet draft must be written to start work in this area, before someone else does ๐Ÿƒโ€โ™€๏ธ๐Ÿ’จ.
  5. Such a draft can be used to generate further drafts, ensuring that we (and CCAMP, MPLS or another responsible working group) will be busy for another year ๐Ÿ˜ฉ.
  6. The draft can also be posted in the "white papers" section of our company web page, proclaiming us as revolutionary pioneers ๐Ÿ‘‘.

Hence the present document ๐Ÿ’–.

4. Terminology ๐Ÿ’œ

  • MPLampS: Mostly Pointless Lamp Switching - the architecture introduced in this document ๐Ÿ’ก.
  • Lamp: An end-system in the MPLampS architecture (clashes with the IETF notion of end-system but of course, we DON'T care) ๐Ÿ’….
  • LER: Low-voltage Electricity Receptor - fancy name for "Lamp" โœจ.
  • ES: Electricity source - a generator โšก.
  • LSR: Load-Switching Router - an MPLampS device used in the core electricity distribution network ๐Ÿ”Œ.
  • LDS: Legacy Distribution System - an inferior electricity distribution technology that MPLampS intends to replace ๐Ÿ™„.
  • RSVP: Rather Screwed-up, but router Vendors Push it - an IP signaling protocol ๐Ÿ˜ญ.
  • RSVP-TE: RSVP with Tariff Extensions - RSVP adaptation for MPLampS, to be used in the new deregulated utilities environment ๐Ÿ’ธ.
  • CRLDP: for CRying out Loud, Don't do rsvP - another IP signaling protocol ๐Ÿ™ˆ.
  • OSPF: Often Seizes-up in multiPle area conFigurations - a hierarchical IP routing protocol ๐ŸŒ€.
  • ISIS: It's not oSpf, yet It somehow Survives - another routing protocol ๐Ÿฅฒ.
  • OSPF-TE, ISIS-TE: OSPF and ISIS with Tariff Extensions ๐Ÿ’….
  • COPS: Policemen. Folks who scour all places for possibilities to slip in the Common Open Policy Service protocol ๐Ÿ‘ฎโ€โ™€๏ธ.
  • VPN: Voltage Protected Network - allows a customer with multiple sites to receive electricity with negligible voltage fluctuation due to interference from other customers ๐ŸŒธ.
  • SUB-IP: SUBstitute IP everywhere - an effort in the IETF to get involved in technical areas outside of traditional IP networking (such as MPLampS) ๐Ÿงš.
  • ITU: International Tariffed Utilities association - a utilities trade group whose work is often ignored by the IETF ๐Ÿ™ƒ.

Part 1 of 2 wraps here ๐ŸŽ€. Part 2 picks up at section 5 (Background) and goes all the way through 7.2 ๐Ÿ’– so stay tuned bestie ๐Ÿซถโœจ

7.3 Routing in the Core Network โœจ

Okay so, this hierarchical distribution system is literally giving OSPF and ISIS energy ๐Ÿงš. We could apply both with suitable extensions, and honestly that's so exciting. Just know we're already cooking up ideas like voltage bundling, multi-area tariff extensions, and insulated LSAs ๐Ÿ”ฅ. Future documents will spill all the details, bestie ๐Ÿ’….

7.4 Voltage Protected Networks (VPNs) ๐Ÿ’œ

VPNs let a customer with multiple sites get guaranteed electricity supply with negligible voltage fluctuations, even when other customers are interfering. Some people might say the entire MPLampS architecture gets trashed if we can't do VPNs ๐Ÿ’€. Whatever the case, VPNs are a hot topic right now, so consider yourself forewarned ๐Ÿ™ˆ. We fully intend to write several documents on this. BGP support for VPNs is something we're eyeing with real interest ๐Ÿ‘€โœจ.

8. Multicast ๐Ÿฆ‹

Okay, here's the tea ๐Ÿ“. There is a strong spatial and temporal locality in electricity demand. ITU Study Group 55 has studied this for over a decade and issued a preliminary report ๐Ÿ“š. The report says that when a lamp turns on in one house, lamps in neighboring houses usually turn on at around the same time, usually at dusk [3]. This has a serious impact on the scalability of the signaling mechanism ๐Ÿ˜ญ. The distribution network has to handle tens of thousands of requests all at once. The signaling load can be reduced if multicast delivery is used ๐Ÿซถ. Basically, a request for electricity doesn't travel all the way from the lamp to an ES. It gets handled by the first LSR that's already on the path to another lamp โœจ.

Supporting this takes multicast routing protocols, RSVP-TE shared reservation styles, and the development of MPLampS multicast forwarding mode ๐Ÿงš. We are currently studying this multicast routing protocol:

  • DVMRP: Discrete Voltage Multicast Routing Protocol. This protocol works over existing voltage routing protocols, but the danger is that electricity gets delivered to all lamps when any one lamp is turned on ๐Ÿ˜ฌ. The switching semantics get really annoying. All lamps turn on periodically, and the ones not needed have to be switched off manually each time ๐Ÿ™„.

Other protocols we'll eventually consider are Current-Based Tree (CBT) and Practically Irrelevant Multicast (PIM) ๐Ÿ’…. We're super interested in multicast scope. We'd love support for distributing electricity with varying scope, from lamps within a single Christmas tree all the way to those in entire cities ๐ŸŽ„๐ŸŒˆ. Needless to say, we'll write many detailed documents on these topics as time goes on ๐Ÿ”ฅ.

9. Security Considerations ๐Ÿ”

โš ๏ธ This document MUST be secured in a locked cabinet to prevent it from being disposed off with the trash. No cap, this is serious ๐Ÿ˜ญ.

10. Summary ๐ŸŽ€

This document covered the motivation and high-level concepts behind Mostly Pointless Lamp Switching (MPLampS), an architecture for electricity distribution over IP โœจ. MPLampS uses DVE (discrete voltage encoding) and an MPLS control plane in the distribution network ๐Ÿงš. The whole point of this document is to be a high-visibility placeholder, so we didn't get into many details of MPLampS ๐Ÿ™ˆ. Numerous future documents, unfortunately, will try to provide those details ๐Ÿ’–.

11. References ๐Ÿ“š

  1. A. Malis, et al., "SONET/SDH Circuit Emulation Service Over MPLS (CEM) Encapsulation", Internet Draft, Work in Progress.
  2. International Tarriffed Utilities association draft standard, ITU G.110/230V, "Discrete Voltage Encoding", March, 1999.
  3. International Tarriffed Utilities association technical report, ITU (SG-55) TR-432-2000, "Empirical Models for Energy Utilization", September, 2000.

12. Disclaimer ๐Ÿ™ƒ

The opinions in this document are solely the author's. Company opinions, as always, are proprietary and confidential and may be obtained under appropriate NDAs ๐Ÿ’ผ.

13. Author's Address ๐Ÿ’Œ

Bala Rajagopalan
Tellium, Inc.
2 Crescent Place
Ocean Port, NJ 07757
Phone: 732-923-4237
EMail: braja@tellium.com

Legal bestie moment ๐Ÿซถ. This section has to stay word for word, so here it is in full:

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