Assigned numbers
RFC 1010
Document | Type |
RFC - Historic
(May 1987; No errata)
Obsoleted by RFC 1060
Obsoletes RFC 990
|
|
---|---|---|---|
Authors | |||
Last updated | 2013-03-02 | ||
Stream | Legacy | ||
Formats | plain text html pdf htmlized bibtex | ||
Stream | Legacy state | (None) | |
Consensus Boilerplate | Unknown | ||
RFC Editor Note | (None) | ||
IESG | IESG state | RFC 1010 (Historic) | |
Telechat date | |||
Responsible AD | (None) | ||
Send notices to | (None) |
Network Working Group J. Reynolds
Request for Comments: 1010 J. Postel
ISI
Obsoletes RFCs: 990, 960, 943, 923, 900, 870, May 1987
820, 790, 776, 770, 762, 758,
755, 750, 739, 604, 503, 433, 349
Obsoletes IENs: 127, 117, 93
ASSIGNED NUMBERS
Status of this Memo
This memo is an official status report on the numbers used in
protocols in the Internet community. Distribution of this memo is
unlimited.
Introduction
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. If you are developing a protocol or application
that will require the use of a link, socket, port, protocol, 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
Electronic 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 Internet
Protocols" [91]. The more prominent and more generally used are
documented in the "DDN Protocol Handbook, Volume Two, DARPA Internet
Protocols" [36] prepared by the NIC. Other collections of older or
obsolete protocols are contained in the "Internet Protocol Transition
Workbook" [57], or in the "ARPANET Protocol Transition Handbook"
[38]. For further information on ordering the complete 1985 DDN
Protocol Handbook, write: SRI International (SRI-NIC), DDN Network
Information Center, Room EJ291, 333 Ravenswood Avenue, Meno Park,
CA., 94025; or call: 1-800-235-3155.
In the entries below, the name and mailbox of the responsible
individual is indicated. The bracketed entry, e.g., [nn,iii], at the
Reynolds & Postel [Page 1]
RFC 1010 - Assigned Numbers May 1987
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
[14]. 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
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 1 | 2 | 3 | 4 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 5 | 6 | 7 | 8 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| 9 | 10 | 11 | 12 |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Transmission Order of Bytes
Whenever an octet represents a numeric quantity the left most bit in
the diagram is the high order or most significant bit. That is, the
bit labeled 0 is the most significant bit. For example, the
following diagram represents the value 170 (decimal).
0 1 2 3 4 5 6 7
+-+-+-+-+-+-+-+-+
|1 0 1 0 1 0 1 0|
+-+-+-+-+-+-+-+-+
Significance of Bits
Similarly, whenever a multi-octet field represents a numeric quantity
the left most bit of the whole field is the most significant bit.
When a multi-octet quantity is transmitted the most significant octet
is transmitted first.
Reynolds & Postel [Page 2]
RFC 1010 - Assigned Numbers May 1987
Version Numbers
VERSION NUMBERS
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