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RFC 793, "Transmission Control Protocol", September 1981

Source of RFC: Legacy
Area Assignment: tsv

Errata ID: 4753
Status: Rejected
Type: Technical

Reported By: Sanjeev Ranot
Date Reported: 2016-07-30
Rejected by: Mirja Kühlewind
Date Rejected: 2016-09-14

Section 1.5 says:

A pair of sockets uniquely identifies each connection.
That is, a socket may be simultaneously used in multiple
connections

It should say:

A pair of sockets uniquely identifies each connection. Sockets can be
classified into client and server sockets. Typically a server socket 
may be simultaneously used in multiple connections.

Notes:

TCP is connection oriented therefore when we say "sockets used in multiple connections" it implies that the context is TCP. Considering their use in TCP, though a single client socket can be implemented in a way to multiplex it for connection with multiple server sockets and exchange different SYN segments but then its same what a server process listening for connections on server port does typically.

I feel classification of sockets here is vital to facilitate understand implicitly that in what use-case can a socket be typically multiplexed while still keeping generality of the statement.
--VERIFIER NOTES--
TCP sockets don't have a client/server concept therefore this clarification is inappropriate.

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