Re: [Xen-users] Veth0 missing

[Ryan <niespam@xxxxxxxxx>]

Cyril,

I'm not sure I did this correctly (I'm having weird network issues), but here's how I did it. 

1. create a file called /etc/xen/scripts/my-network-script
#!/bin/sh
dir=$(dirname "$0")
"$dir/network-bridge" "$@" vifnum=0 bridge=xenbr0 netdev=eth0

make sure my-network-script is executable....
[ryan@xen01 ~]$ chmod 744 /etc/xen/scripts/my-network-script

2. add the following line to /etc/xen/xend-
config.sxp
(network-script my-network-script)

3. create a configuration file for your virtual OS (if you haven't already done that) and add
vif    = [ 'bridge=xenbr0']

4. Create the bridge.
brctl addbr xenbr0
brctl stp xenbr0 off
brctl setfd xenbr0 0
ip link set xenbr0 up
brctl addif xenbr0 eth0

As I said, I don't know if this is complete, take it with a grain of salt.

Regards,
Ryan

On 1/31/07, Cyril Gouget <cyril.gouget@xxxxxxxxx> wrote:

HEllo,

I can't see it via ifconfig. I did not add a network bridge. How to do it?

Bye

Cyril

2007/1/31, Ryan < niespam@xxxxxxxxx >:

Cyril,

Can you see the veth0 via ifconfig?? Did you add a network bridge?? These instructions may help....

http://wiki.xensource.com/xenwiki/XenNetworking#head-6bf1a8014b3a002670ac23d8326eb9ac9e2714e5

Regards,
Ryan

On 1/31/07, Cyril Gouget < cyril.gouget@xxxxxxxxx> wrote:

Hello,

I installed Xen 3.0.3 on an ubuntu AMD64 as descibed in https://help.ubuntu.com/community/XenVirtualMachine/XenOnUbuntuEdgy  execpt I used the 2.6.16-11.2 kernel because 2.6.17 did kernel panic.

I managed to run windows XP pro but only commenting the ligne 'vif=[....]'. I installed bridge-utils and completed /etc/xen/xend- config.sxp.

In /var/log/xen/xend-debug.log I got:
Link veth0 is missing.
This may be because you have reached the limit of the number of interfaces
that the loopback driver supports.  If the loopback driver is a module, you
may raise this limit by passing it as a parameter (nloopbacks=<N>); if the
driver is compiled statically into the kernel, then you may set the parameter
using loopback.nloopbacks=<N> on the domain 0 kernel command line.

Does anybody have an idea? I'm running it with the forcedeth driver...

Bye

Cyril

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