thr3ads.net - freebsd stable - RELENG_8 ignoring TCP window size? [Was: Re: Help for TCP understanding wanted, ACK-MSS-Window [Was: Re: best practice to watch TCP parms of established sockets]] [Feb 2010]

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Stephen Hurd

2010-Feb-18 19:16 UTC

RELENG_8 ignoring TCP window size? [Was: Re: Help for TCP understanding wanted, ACK-MSS-Window [Was: Re: best practice to watch TCP parms of established sockets]]

All those duplicate ACKs look like a problme to me... I would be inclined to
capture from the other end or from a monitor port on the switch to make sure
those are actually hitting the wire.  The only explination I can think of is
that the system sending the duplicate ACKs is assuming that it's lost a
segment for some reason and is trying to trigger fast recovery early.
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freebsd stable - Feb 2010 - RELENG_8 ignoring TCP window size? [Was: Re: Help for TCP understanding wanted, ACK-MSS-Window [Was: Re: best practice to watch TCP parms of established sockets]]

RELENG_8 ignoring TCP window size? [Was: Re: Help for TCP understanding wanted, ACK-MSS-Window [Was: Re: best practice to watch TCP parms of established sockets]]