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Socket number list (RFC0433)

IP.com Disclosure Number: IPCOM000003593D
Original Publication Date: 1972-Dec-22
Included in the Prior Art Database: 2000-Sep-13
Document File: 5 page(s) / 6K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Postel: AUTHOR

Abstract

The czar of socket numbers [Jon Postel] has established the following assignments for socket numbers used for public functions. Note that a socket number is a 40 bit quantity, the first 8 bits being the host specification, the next 24 bits being site specific, and the last 8 bits being user specified - these last 8 bits are called the AEN [it stands for, cleverly enough, Another Eightbit Number].

This text was extracted from a ASCII Text document.
This is the abbreviated version, containing approximately 48% of the total text.

Network Working Group Jon Postel (UCLA-NMC)

Request for Comments: 433 Nancy Neigus (BBN)

NIC 13491 22 December 1972

Categories: Socket Numbers

References: 349

Socket Number List

The czar of socket numbers [Jon Postel] has established the

following assignments for socket numbers used for public

functions. Note that a socket number is a 40 bit quantity, the

first 8 bits being the host specification, the next 24 bits being

site specific, and the last 8 bits being user specified - these

last 8 bits are called the AEN [it stands for, cleverly enough,

Another Eightbit Number].

For the assignments here the value in the host field ranges

across all hosts (unless otherwise specified), the value in the

24 bit field is zero, and the AEN is indicated here.

General Assignments:

Sockets Assignment

0 - 63 Network Wide Standard Functions

64 - 127 Host Specific Functions

128 - 239 Reserved for Future Use

240 - 255 Any Experimental Function

Particular Assignments:

Socket Assignment

1 Telnet

3 File Transfer

5 Remote Job Entry

7 Echo

9 Discard

19 Character Generator [e.g. TTYTST]

65 Speech Data Base @ ll-tx-2 (74)

67 Datacomputer @ cca (31)

241 NCP Measurement

243 Survey Measurement

245 LINK

The specifications for the assigned functions can be found in the

documents listed here:

Telnet RFC 318

File Transfer RFC 354 & RFC 385

Remote Job Entry RFC 407

Echo RFC 347

Discard RFC 348

Character Generator RFC 429

Speech Data Base SUR 37

Datacomputer [Murray @ CCA]

NCP Measurment RFC 388

Survey Data [Kampe @ NMC]

LINK [Bressler @ BBN]

It has come to our attention that there are several hosts

performing useful public services on sockets which conflict with

the above scheme. We hope we can resolve this problem with a

minimum of disruption.

The following is a tabulation of socket numbers together with the

services offered. This listing is presented as an aid to network

users. If you know of a socket/function which has been left out

or an entry which should be corrected or deleted please contact:

Jon Postel

3804 Boelter Hall

Computer Science Department

University of California

Los Angeles, CA. 90024

Phone: (213) 825-2368

NIC Ident = JBP

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