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[Xen-devel] Xen3 domU network packet loss (udp iperf)

To: xen-devel@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-devel] Xen3 domU network packet loss (udp iperf)
From: Pasi Kärkkäinen <pasik@xxxxxx>
Date: Sat, 18 Mar 2006 15:04:13 +0200
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Hi!

Please check out this URL: http://nrg.joroinen.fi/xen-ploss.txt

There you have UDP iperf results to and from domU and dom0.

It seems xen causes packet loss to domU's.. dom0 works well without packet
loss.

Is this known problem? I'm using bridged networking with xen.

Both the xen box, and the external non-xen box were P4 3.0+ GHz, using
gigabit NIC's (tg3 and e1000).

in the xen box, all the physical network interfaces (tg3) have rx and tx 
checksumming on.

I'm using xen 3 unstable from 2006-02-04.

-- Pasi

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