From: Vipin Khushu (vkhushu@GUERNSEYOP.COM)
Date: Wed Dec 03 2003 - 08:37:14 EST
glad to know that. thanks
-----Original Message-----
From: Green, Simon [mailto:Simon.Green@EU.ALTRIA.COM]
Sent: Wednesday, December 03, 2003 6:01 AM
To: aix-l@Princeton.EDU
Subject: Re: interpreting netstat results
We encountered some very similar problems a few months ago following
migration to AIX 4.3.3 ML11. There are some new network options, introduced
with AIX 5.2 then retro-fitted to 5.1 and 4.3.3 in maintenance releases.
Look at the network options tcp_nodelayack and tcp_finwait2. I changed
these, setting tcp_nodelayack to 1 (default is 0) and tcp_finwait2 to 120,
(default is 1200). That seemed to solve our problems.
Simon Green
Altria ITSC Europe Ltd
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> -----Original Message-----
> From: Vipin Khushu [mailto:vkhushu@GUERNSEYOP.COM]
> Sent: 02 December 2003 17:37
> To: aix-l@Princeton.EDU
> Subject: interpreting netstat results
>
>
> Does anyone know what to make of the "LAST_ACK" in the output
> of netstat?
>
> # netstat
>
> Active Internet connections
>
> Proto Recv-Q Send-Q Local Address Foreign Address
> (state)
> tcp4 0 0 companyname.company.8765 123.456.789......
> LAST_ACK
>
> where 8765 is the port number.
>
> Our shopping website was non-functional while the LAST_ACK
> state persisted.
>
> Upon waiting a few minutes, the following change occurred without any
> intervention on our part (which allowed the site to function
> normally once
> again):
>
> # netstat
>
> Active Internet connections
>
> Proto Recv-Q Send-Q Local Address Foreign Address
> (state)
> tcp4 0 0 companyname.company.8765 *.*
> LISTEN
> tcp4 0 0 companyname.company.8766 *.*
> LISTEN
>
> man netstat did not have anything useful (based on a quick
> review) that
> would explain how to interpret the (state) messages.
>
> TIA
>
> Vipin
>
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