Browse Prior Art Database

Assigned numbers (RFC0755)

IP.com Disclosure Number: IPCOM000003803D
Original Publication Date: 1979-May-03
Included in the Prior Art Database: 2000-Sep-13
Document File: 9 page(s) / 21K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Postel: AUTHOR

Abstract

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 Jon Postel. The assignment of numbers is also handled by Jon. If you are developing a protocol or application that will require the use of a link, socket, etc. please contact Jon to receive a number assignment.

This text was extracted from a ASCII document.
This is the abbreviated version, containing approximately 13% of the total text.

Network Working Group J. Postel

Request for Comments: 755 USC-ISI

IEN: 93 3 May 1979

Obsoletes: 750,

739, 604, 503, 433, 349

ASSIGNED NUMBERS

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 Jon Postel. The assignment of

numbers is also handled by Jon. If you are developing a protocol or

application that will require the use of a link, socket, etc. please

contact Jon to receive a number assignment.

Jon Postel

USC - Information Sciences Institute

4676 Admiralty Way

Marina del Rey, California 90291

phone: (213) 822-1511

ARPANET mail: POSTEL@ISIB

Most of the protocols mentioned here are documented in the RFC series of

notes. The more prominent and more generally used are documented in the

Protocol Handbook [1] prepared by the Network Information Center (NIC).

In the lists that follow a bracketed number, e.g. [1], off to the right

of the page indicates a reference for the listed protocol.

RFC 755 3 May 1979

IEN 93 Assigned Numbers

Link Numbers

ASSIGNED LINK NUMBERS

The word "link" here refers to a field in the original ARPANET

Host/IMP interface leader. The link was originally defined as an 8

bit field. Some time after the ARPANET Host-to-Host (AHHP) protocol

was defined and, by now, some time ago the definition of this field

was changed to "Message-ID" and the length to 12 bits. The name link

now refers to the high order 8 bits of this 12 bit message-id field.

The low order 4 bits of the message-id field are to be zero unless

specifically specified otherwise for the particular protocol used on

that link. The Host/IMP interface is defined in BBN report 1822 [2].

Link Assignments:

Decimal Octal Description References

------- ----- ----------- ----------

0 0 AHHP Control Messages [1,3]

1 1 Reserved

2-71 2-107 AHHP Regular Messages [1,3]

72-151 110-227 Reserved

152 230 PARC Universal Protocol

153 231 TIP Status Reporting

154 232 TIP Accounting

155-158 233-236...