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Date:      Sat, 30 Apr 2011 23:35:22 +0800
From:      Adrian Chadd <adrian@freebsd.org>
To:        pyunyh@gmail.com
Cc:        freebsd-net@freebsd.org
Subject:   Re: collisions on tun interfaces ...
Message-ID:  <BANLkTinDhJOP3Xus1iW-mH8Ru2Q9hkofOw@mail.gmail.com>
In-Reply-To: <20110429185605.GB21084@michelle.cdnetworks.com>
References:  <201104290001.p3T01EvQ082443@artema.vpn.ibs> <20110429095231.GA17786@relay.ibs.dn.ua> <20110429182807.GA21084@michelle.cdnetworks.com> <20110429184634.GA34176@relay.ibs.dn.ua> <20110429185605.GB21084@michelle.cdnetworks.com>

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On 30 April 2011 02:56, YongHyeon PYUN <pyunyh@gmail.com> wrote:

> Sending lots of packets within short interval may overflow
> interface's send queue. Try sending UDP packets with netperf and
> see what counters are changed during the test with something like
> "netstat -ndI tun0 -w 1".

The default sendq is 50. What about considering bumping that?


Adrian



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