Assigned numbers (RFC0990)
Original Publication Date: 1986-Nov-01
Included in the Prior Art Database: 2019-Feb-14
Internet Society Requests For Comment (RFCs)
J.K. Reynolds: AUTHOR [+1]
This Network Working Group Request for Comments documents the currently assigned values from several series of numbers used in network protocol implementations. This memo is an official status report on the numbers used in protocols in the ARPA-Internet community. See RFC-997. Obsoletes RFC-960, 943, 923 and 900.
Network Working Group J. Reynolds Request for Comments: 990 J. Postel ISI Obsoletes RFCs: 960, 943, 923, 900, November 1986 870, 820, 790, 776, 770, 762, 758, 755, 750, 739, 604, 503, 433, 349 Obsoletes IENs: 127, 117, 93
Status of this Memo
This memo is an official status report on the numbers used in protocols in the ARPA-Internet community. Distribution of this memo is unlimited.
This Network Working Group Request for Comments documents the currently assigned values from several series of numbers used in network protocol implementations. This RFC will be updated periodically, and in any case current information can be obtained from Joyce Reynolds. The assignment of numbers is also handled by Joyce. If you are developing a protocol or application that will require the use of a link, socket, port, protocol, network number, etc., please contact Joyce to receive a number assignment.
Joyce K. Reynolds USC - Information Sciences Institute 4676 Admiralty Way Marina del Rey, California 90292-6695
Phone: (213) 822-1511
ARPA mail: JKREYNOLDS@ISI.EDU
Most of the protocols mentioned here are documented in the RFC series of notes. Some of the items listed are undocumented. Further information on protocols can be found in the memo "Official ARPA-Internet Protocols" . The more prominent and more generally used are documented in the "DDN Protocol Handbook"  prepared by the NIC. Other collections of older or obsolete protocols are contained in the "Internet Protocol Transition Workbook , or in the "ARPANET Protocol Handbook" . For further information on ordering the complete 1985 DDN Protocol Handbook, write: SRI International, DDN Network Information Center, Room EJ291, 333 Ravenswood Avenue, Meno Park, California, 94025. Or call: 1-800-235-3155.
Reynolds & Postel [Page 1]
RFC 990 November 1986 Assigned Numbers
In the entries below the name and mailbox of the responsible individual is indicated. The bracketed entry, e.g., [nn,iii], at the right hand margin of the page indicates a reference for the listed protocol, where the number ("nn") cites the document and the letters ("iii") cites the person. Whenever possible, the letters are a NIC Ident as used in the WhoIs (NICNAME) service.
The convention in the documentation of Internet Protocols is to express numbers in decimal and to picture data in "big-endian" order . That is, fields are described left to right, with the most significant octet on the left and the least significant octet on the right.
The order of transmission of the header and data described in this document is resolved to the octet level. Whenever a diagram shows a group of octets, the order of transmission of those octets is the normal order in which they are read in English. For example, in the following diagram the octets are transmitted in the order they are numbered.
0 1 2 3 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+...