Messages in this thread |  | | Date | Mon, 13 May 1996 15:28:46 +0100 | From | Pedro Roque Marques <> | Subject | Tcp problems (with solaris) |
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>>>>> "Giles" == Giles Douglas <giles@onlinemagic.net> writes:
Giles> Ok, I'm not sure what exactly is causing this problem, but Giles> its weird. Basically, I have a sun ultrasparc. No problems Giles> with it until yesterday, when we moved a heavily-hit web Giles> site on to it. Now if I telnet from linux (kernels 1.3.100, Giles> 1.99.2, 1.3.91) to the sun, I get very slow, patchy Giles> responses. (Best seen doing that great old test of holding Giles> down a key for a long time.)
Giles> The odd bit is, if I start a connection to the sun via an Giles> xterm I don't get the problem. Nor do I going from the sun
Can you strace the xterm to find out if it disables nagling via setsockopt ?
Anyway connections to Solaris in link where speed is slightly inferiour to ethernet speed are supposed to be slow if you don't configure the retransmit times (ndd /dev/tcp retransmit_interval_* or something in that lines).
Solaris 2.{4,5} has some very very broken TCP behaviour. Do a tcpdump on the wire and you'll see the Solaris host retransmiting like mad, sending double acks and having a completly insane behaviour.
regards, Pedro.
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