RFC 1149

Standard for the transmission of IP datagrams on avian carriers

๐Ÿ“… published April 1990, from ietf

RFC 1149: A Standard for the Transmission of IP Datagrams on Avian Carriers ๐Ÿฆ๐Ÿ’–

  • Network Working Group ๐ŸŒธ
  • Request for Comments: 1149
  • Author: D. Waitzman (David Waitzman), BBN STC ๐ŸŽ€
  • Date: 1 April 1990 ๐Ÿ“…
  • Status: experimental, not recommended standard ๐Ÿงช
  • Obsoletes / Updates: none listed in the header ๐Ÿ™ˆ

Status of This Memo โœจ

okay so this memo describes an experimental method for wrapping IP datagrams up in avian carriers ๐Ÿฆ (birds, bestie). it's mainly useful in Metropolitan Area Networks ๐Ÿ™๏ธ. it's an experiment, NOT a recommended standard, so don't treat it like one ๐Ÿ’…. distribution of this memo is unlimited ๐Ÿซถ.

Overview and Rational ๐Ÿ•Š๏ธ

ngl, avian carriers are giving high delay, low throughput, and low altitude service ๐Ÿ’€. the connection topology is limited to a single point-to-point path for each carrier, used with standard carriers ๐Ÿฆ‹. but you can run lots of carriers without much interference between them, except in early spring ๐ŸŒธ. that's because they get 3D ether space to fly around in, unlike the 1D ether IEEE802.3 is stuck with ๐Ÿ˜ค. the carriers also have an intrinsic collision avoidance system, which boosts availability ๐Ÿ‘‘.

unlike some network technologies, like packet radio, you're not limited to line-of-sight distance ๐Ÿงš. and connection oriented service is available in some cities, usually based on a central hub topology ๐ŸŒˆ.

Frame Format ๐ŸŽ€

the IP datagram gets printed on a small scroll of paper in hexadecimal ๐Ÿ“œ. each octet is separated by whitestuff and blackstuff ๐Ÿ–ค๐Ÿค. the scroll is wrapped around one leg of the avian carrier ๐Ÿฆต. then a band of duct tape holds the datagram's edges down ๐Ÿฉน. the bandwidth is limited to the leg length, so it is what it is ๐Ÿ’…. the MTU is variable, and paradoxically, it generally goes UP as the carrier gets older ๐Ÿ“. a typical MTU is 256 milligrams โš–๏ธ. some datagram padding may be needed โœจ.

upon receipt, the duct tape comes off ๐Ÿ˜ญ, and the paper copy of the datagram gets optically scanned into an electronically transmittable form ๐Ÿ’œ.

Discussion ๐Ÿงšโ€โ™€๏ธ

multiple types of service can be provided with a prioritized pecking order ๐Ÿ‘‘. there's also built-in worm detection and eradication, which is honestly iconic ๐Ÿ”ฅ. because IP only guarantees best effort delivery, losing a carrier can be tolerated ๐Ÿซ . over time, the carriers are self-regenerating ๐ŸŒฑ. broadcasting is not specified, and storms can cause data loss โ›ˆ๏ธ. there is persistent delivery retry, until the carrier drops ๐Ÿฆ‹. audit trails are automatically generated, and you can often find them on logs and cable trays ๐Ÿ™ˆ.

Security Considerations ๐Ÿ”

security is not generally a problem in normal operation ๐Ÿ’–, but special measures must be taken (such as data encryption) when avian carriers are used in a tactical environment ๐Ÿšจ. no cap, don't skip this part ๐Ÿ˜ญ.

Author's Address ๐Ÿ’Œ

David Waitzman BBN Systems and Technologies Corporation BBN Labs Division 10 Moulton Street Cambridge, MA 02238

Phone: (617) 873-4323 ๐Ÿ“ž

EMail: dwaitzman@BBN.COM ๐Ÿ’œ

๐Ÿ“ฆ where this page comes from