FIN_WAIT_[1,2] and LAST_ACK

[Chuck Swiger]

Brandon Erhart wrote:
[ ... ]
> Any advice on the timeouts? I don't really care about the RFC , honestly 
> :-P. Like I said, I'm going for sheer speed.

My advice was to read the RFC as it contains significant discussion about 
these timeouts, but you're free to disregard it if you please.

In particular, the discussion of FIN/ACK handling is relevant, since a TCP 
implementation ought to move through the various FIN_WAIT states rapidly if 
both sides agree to close and don't have more data to send.  Using tcpdump to 
verify what's going on might help you figure out why the connections are 
lingering around...

-- 
-Chuck