RE: [Xen-users] veth0 is from netback and vifu.0 is from thebrid

To:	<Anthony.Golia@xxxxxxxxxxxxxxxxx>, <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject:	RE: [Xen-users] veth0 is from netback and vifu.0 is from thebridge-utils?
From:	"Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>
Date:	Thu, 8 Sep 2005 20:07:23 +0100
Cc:	ian.pratt@xxxxxxxxxxxx
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Thread-topic:	[Xen-users] veth0 is from netback and vifu.0 is from thebridge-utils?

 
> Hi.  what creates veth0 and vifu.0, when?  what's the 
> underlying architecture behind them?  Just trying to 
> understand the internals.

netback/loopback.c creates them.

It's effectively a point to point link, allowing domain 0 to connect on
to the bridge in the same manner that other domains do. (before, packets
to domain 0 were short-cutted and came off the bridge directly, which
could lead to traffic from other domains being stalled if a lot of
traffic was destined to user space in dom0.

Best,
Ian

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RE: [Xen-users] veth0 is from netback and vifu.0 is from thebridge-utils