Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!swrinde!ucsd!ucbvax!UNB.CA!DEDOUREK
From: DEDOUREK@UNB.CA
Newsgroups: comp.protocols.tcp-ip
Subject: Re: TCP segment size -- user defined?
Message-ID: <ID9478.D900921.T090901.DEDOUREK@UNB.CA>
Date: 21 Sep 90 12:09:01 GMT
References: <BILLW@MATHOM.CISCO.COM>
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Organization: The Internet
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On  Fri, 21 Sep 90 04:17:00 CDT  William Chops Westfield
<BILLW@MATHOM.CISCO.COM> writes:

>    The upper limits on the size of a TCP segment are:
> 	:
> 	:
>    (3) the "Path MTU"; basically, the largest packet that can be sent
>    from source to destination without fragmentation.
>
To avoid fragmentation, can TCP MSS be equal to path MTU, or must
it be less by some number of octets to allow for TCP and IP headers?
If so, what is a good value?
John D.