Date: Thu, 26 Mar 1998 14:54:36 -0500 (EST) From: Open Systems Networking <opsys@mail.webspan.net> To: freebsd-hackers@FreeBSD.ORG Subject: mssdflt size 512? or 536? Message-ID: <Pine.BSF.3.95.980326144751.6164A-100000@orion.webspan.net>
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I was just thumbinb through the sysctl's of my freebsd -current box and a
bsdi 3.1 box, and comparing the set sizes and options inboth sysctl trees
on the OS's to the figures in vol. I of TCP/IP illustrated.
What is the actual correct dflt MSS size? 512? or 536?
Im asking for purely academic reasons.
stevens says most BSD imlementations need to be multiples of 512 which
ours is (512), but he also says if no mss option is found on the other end
it defaults to 536. Whic is not a multiple of 512. I prefer ours of 512
sticking to the fact it has to be a multiple of 512, but on the other hand
whats the point of setting our mssdflt to 512 if by default it goes to 536
if no mss option is found on the connection?
Interesting indeed.
Chris
--
"I am closed minded. It keeps the rain out."
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