Xen users - Dec 2008 - Customising network setup stops all networking

Running Xen on SLES10 SP2.

Using the defaults, I''ve got a VM talking to a network fine (Basically,
just
bridged networking to Dom0''s eth0)

I now want to use both of the Dom0s ethernet interfaces in separate bridges
for VMs.

A quick bit of reading told me to write my own bridge wrapper script. So I
wrote the following:

#!/bin/sh
dir=$(dirname "$0")
"$dir/network-bridge" "$@" vifnum=0 netdev=eth0
bridge=xenbr0
"$dir/network-bridge" "$@" vifnum=1 netdev=eth1
bridge=xenbr1

I modified xend-config.sxp by changing/adding:

#(network-script network-bridge)
(network-script my-network-bridge)

I saved the files, rebooted and waited with baited breath.

After the Dom0 came back up, networking appeared to be up, but I
couldn''t
ping the Dom0. The "brctl show" showed the two bridges with the
correct
physical interfaces in them.

Can someone help me out ?

Thanks,

GTG


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On Tue, Dec 02, 2008 at 08:52:02AM +0000, Gordon Ross
wrote:
> Can someone help me out ?
Use the mechanisms shiped with your _distribution_ to setup the bridges.

Bastian

-- 
Power is danger.
		-- The Centurion, "Balance of Terror", stardate 1709.2

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On 02/12/2008 08:52, "Gordon Ross" <gr306@ucs.cam.ac.uk>
wrote:
> #!/bin/sh
> dir=$(dirname "$0")
> "$dir/network-bridge" "$@" vifnum=0 netdev=eth0
bridge=xenbr0
> "$dir/network-bridge" "$@" vifnum=1 netdev=eth1
bridge=xenbr1
On SLES, you name the bridges the same as the Dom0''s physical
interface. So
the script should be:

#!/bin/sh
dir=$(dirname "$0")
"$dir/network-bridge" "$@" vifnum=0 netdev=eth0 bridge=eth0
"$dir/network-bridge" "$@" vifnum=1 netdev=eth1 bridge=eth1

There''s a posting on the Novell forums about this:

http://forums.novell.com/novell-product-support-forums/suse-linux-enterprise
-server-sles/sles-virtualization/330337-suse-10-sp2-xen-network-bridge.html

GTG


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