From: Charles Hedrick (hedrick@farside.rutgers.edu)
Date: 11/14/92


From: hedrick@farside.rutgers.edu (Charles Hedrick)
Subject: telnet between linux and solaris 2.0
Date: 14 Nov 1992 19:58:16 GMT

This may be pretty specialized information, but we're starting to test
Sun's Solaris 2.0. It has a new TCP implementation that behaves
differently than Berkeley's. If you are using KA9Q with SLIP, and try
to telnet to Solaris 2.0, you'll see pretty severe performance
problems. Solaris 2.0 ignores MSS's below 128, and when you try to
set MSS of 64 and window of 256, it sends you 512-byte packets. This
is absurd, since it exceeds the offered window, much less than MSS. I
suggest using MSS of 128 and window of 512 if you are talking with
Solaris 2.0. (This all assumes you are using V-J header compression.
If not, you probably have a large enough MSS that this isn't an
issue.)