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Re: [Xen-devel] Communicating between Dom0 and DomU without a network

To: James Harper <james.harper@xxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Communicating between Dom0 and DomU without a network
From: Hajime Inoue <hinoue@xxxxxxxxxxxxxxxx>
Date: Tue, 16 Oct 2007 19:19:09 -0400
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We have an application monitoring network activity on
the guest, and we want to send summaries about that
activity to Dom0 without adding to that activity.  We
could filter the traffic so that we exclude monitor
generated activity, but we'd rather look at everything.

We don't need much of a protocol.  All the data is
going in one direction.

Thanks,
-Hajime Inoue




James Harper wrote:
I'm looking for a way to communicate, without a network,
between Dom0 and DomU, at speeds approaching typical
bandwidth.

Can you detail some of the requirements? Whatever you use will require a
protocol of some sort, and the network stack already implements almost
anything you would want. Possibly the next best thing would be to run
another protocol (eg not tcp/ip) over the virtual ethernet.

If you can state why using a network is out of the question, you'll
avoid a whole load of people asking you :)


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