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Date:      Sun, 2 Apr 2006 10:36:38 -0500
From:      Mikhail Teterin <mi+kde@aldan.algebra.com>
To:        Luigi Rizzo <rizzo@icir.org>
Cc:        ugen@netvision.net.il, archie@dellroad.org, net@freebsd.org
Subject:   Re: Is there an API for ipfw?
Message-ID:  <200604021136.39084@aldan>
In-Reply-To: <20060401201948.A33543@xorpc.icir.org>
References:  <200603301657.43218.mi%2Bmx@aldan.algebra.com> <200604011834.12572@aldan> <20060401201948.A33543@xorpc.icir.org>

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On Saturday 01 April 2006 11:19 pm, Luigi Rizzo wrote:
= > It is a FreeBSD/amd64-6.1 as of February 7, running on a signle Opteron
= > 244 (hence UP). Machine has 2Gb of RAM and the active interface is em0 in
= > full 
= 
= so the pipe acts just on traffic from/to the local host ?

No, as I wrote below, the NFS client is a Sun machine. :-) It is an 8-CPU box 
Sybase-server running on Solaris-9.

= > duplex 1GB mode. The ipfw and dummynet are loaded modules, not compiled in 
= > (don't know, if that matters).
= 
= should not make a difference.
= 
= It would help if you could run, when the traffic stalls, a tcpdump on
= both source and destination, and tell me where you see the traffic.

Ok, I will next time this happens. I don't think, we have tcpdump on the 
client (Solaris), though.

= > Without the pipes, the same Sun machine (NFS client) sends this data at
= > around 36Mb/s, which is too fast for my program to compress, so I'd like
= > to be able to throttle it.

Thanks! Yours,

	-mi



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