>>>>> "Andrew" == Andrew Hume <and...@research.att.com> writes:

Andrew> to my surprise, i am getting networking weirdness on my machines.

Like what?  

Andrew> a sniffer revealed the dreaded "TCP 0 window" message, which
Andrew> apparently means that the receiving system has run out of
Andrew> something (TCP buffers?).

What do you see in 'dmesg' output?  

Andrew> now, i never expect much out of linux and i am always satisfied.

So just reboot, won't that fix the problem?  *snark*

Andrew> nevertheless, i would expect some indication that something
Andrew> has run low or needs to be increased. what should i look for?
Andrew> are there magic variables to set?  this is on Red Hat
Andrew> enterprise 6.

So what are these system(s) doing and how is their network setup, etc?
Give us more details on the hardware and what errors you're seeing.
Otherwise you really don't give us enough information to help.

John
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