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Re: [Xen-users] Xen 3 and multiple physical network devices

To: Nivedita Singhvi <nsnix@xxxxxxxxxxx>
Subject: Re: [Xen-users] Xen 3 and multiple physical network devices
From: Peter.Weiss@xxxxxxxxx
Date: Tue, 13 Dec 2005 15:27:40 +0100
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In-reply-to: <4399CF7B.50106@xxxxxxxxxxx> (Nivedita Singhvi's message of "Fri, 09 Dec 2005 10:39:55 -0800")
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On Dec 09 2005 Nivedita Singhvi <nsnix@xxxxxxxxxxx> wrote:

> Peter.Weiss@xxxxxxxxx wrote:
> Right. The network-bridge script sets up dom0 networking
> infrastructure for you. You will need to run this before
> running vif-bridge or creating a domain.
> You can write a wrapper script (as described in
> xend-config.sxp) to invoke this twice, one for each
> bridge/netdev pair.
> Try running it for eth0/xenbr0, then eth1/xenbr1:
> # /etc/xen/scripts/network-bridge start vifnum=0 netdev=eth0
> # /etc/xen/scripts/network-bridge start vifnum=1 netdev=eth1

Okay, this seems to work somehow...

I've setup two interfaces on a DomU, which I can ping by ip address -- even
from outside of dom0. What I would expect is that if I shutdown one interface
on Dom0 that only one of the virtual interfaces on DomU would be
pingable. But I can still ping both addresses on DomU.

    # brctl show
    bridge name     bridge id               STP enabled     interfaces
    xenbr0          8000.feffffffffff       no              vif0.0
    xenbr1          8000.feffffffffff       no              vif1.1

I understand the interface list of xenbr0. What I would expect in this
listing is that interfaces like peth1 and vif0.1 appear in the xenbr1
interface list. But these interfaces aren't created by the 

    # /etc/xen/scripts/network-bridge start vifnum=1 netdev=eth1



Peter.Weiss@xxxxxxxxx                         ConSol* Software GmbH
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