Re: FIN_WAIT_2 timeout

From: Richard Wendland (richard_at_codeburst.co.uk)
Date: 08/24/04

  • Next message: Pavel Gulchouck: "Re: FIN_WAIT_2 timeout" 
    To: andre@freebsd.org (Andre Oppermann)
Date: Tue, 24 Aug 2004 12:29:42 +0100 (BST)

    > > http://httpd.apache.org/docs/misc/fin_wait_2.html says that FreeBSD
    > > has a timeout for FIN_WAIT_2 state, but I don't see it.
    >
    > Very strange...

    This is somewhat similar to a problem I explained a few months back:

            http://www.mail-archive.com/freebsd-net@freebsd.org/msg11857.html

    where a 10 minute keepalive from a Novell system defeated the FreeBSD
    11min 15 sec FIN_WAIT timeout. This situation is a bit different as
    FreeBSD is the server rather than the client. I wonder if 195.248.160.78
    is a Novell system?

    If it is similar, there's no real bug in the FreeBSD TCP stack, but the
    far end is acting strangely with an abnormally fast keepalive.

    It would be worth tcpdumping 195.248.160.78 traffic on those ports for
    30 mins or so to see if it is simply doing keepalives more frequently
    that 12 mins.

            Richard 

    -- 
Richard Wendland				richard@codeburst.co.uk
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  • Next message: Pavel Gulchouck: "Re: FIN_WAIT_2 timeout"