From: Martin Knoblauch <spamtrap@knobisoft.de>
Subject: Re: Strange performance problems between Linux client and
	Sun/Solaris-10 Server with SAM-FS
Date: Mon, 14 May 2007 09:45:51 -0700 (PDT)
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>At 10:20 AM 5/14/2007, Martin Knoblauch wrote:
>> not sure whether I should feel stupid. Inspecting the tcpdump log
>>(snippet attached), I see a lot of "reply ERR 1448" packets coming 
from
>>the Sun. Which of course could explain a few things.
>
>Can you turn up the tcpdump reporting to show more NFS layer decoding?
>The "1448" is just the packet length at this level (which is a bit odd

>in
>itself - why such a large reply?), not the error code.
Hi Tom,

 How to turn NFS reporting up? "-vvv" does not give any more info?

 I looked at the source to tcpdump/print-nfs.c. The "1448" is just the
length. The difference between "ok" and "ERR" is the value of the
SUNRPC_MSG_ACCEPTED bit in "rp->rm_reply.rp_stat".

>>12:11:03.201366 IP (tos 0x0, ttl  61, id 42986, offset 0, flags [DF],

>>proto: TCP (6), length: 1500) 160.50.118.37.2049 > 
>>160.50.204.58.1090741696: reply ok 1448
>>12:11:03.201442 IP (tos 0x0, ttl  61, id 42987, offset 0, flags [DF],

>>proto: TCP (6), length: 1500) 160.50.118.37.2049 > 
>>160.50.204.58.1076887552: reply ERR 1448
>>...
>
>Tom.


------------------------------------------------------
Martin Knoblauch
email: k n o b i AT knobisoft DOT de
www:   http://www.knobisoft.de

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