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Re: [Xen-devel] veth0 stuff in -unstable?

On 8 Jul 2005, at 17:29, Nate Carlson wrote:

Just wondering what veth0 is supposed to be, and the best way to debug this.

veth0 serves two purposes. First, it correctly provides checksum-avoidance across the Ethernet bridge. Second, it ensures that locally-delivered packets coming from other domains on the same box are copied into local buffers. This is actually quite important: otherwise we end up tying up network buffers belonging to a domU for unbounded time (buffers may wait in socket queues in dom0 for example) and also tying up resources in dom0's netback driver.

We have had reports of problems with veth0 though -- possibly the setup script (/etc/xen/scripts/network iirc) is broken for some people.

 -- Keir

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