Re: [Xen-users] Problems with bridged networking

[Thomas Robers <robers@xxxxxxxxx>]

Fischer, Anna schrieb:
> > Now I've booted Xen 3.0.3 again and almost everything works as
> > expected. After
> > booting all bridges are up and working.
> Are you booting Xen 3.0.3 and Xen 3.2 on the same machine using the same 
> userspace tools but different kernels? Are you sure that you have not messed up 
> your networking scripts?
>
> When you run Xen 3.2 (and it does not work), do you have connectivity between 
> Dom0 and external hosts using eth1?
Hello Anna,

maybe there's something mixed up. I remember that I had problems getting up 10 
bridges
with Xen 3.0.3 from Debian.
I use a wrapper script which starts the bridges at boot time:

        /etc/xen/xend.config.sxp:
        (network-script network-bridge-wrapper)

        /etc/xen/scripts/network-bridge-wrapper:
        #!/bin/bash
        /etc/xen/scripts/network-bridge start vifnum=0 bridge=xenbr0 netdev=eth0
        /etc/xen/scripts/network-bridge start vifnum=1 bridge=xenbr1 netdev=eth1
        /etc/xen/scripts/network-bridge start vifnum=2 bridge=xenbr2 netdev=eth2
        /etc/xen/scripts/network-bridge start vifnum=3 bridge=xenbr3 netdev=eth3
        /etc/xen/scripts/network-bridge start vifnum=4 bridge=xenbr4 netdev=eth4
        /etc/xen/scripts/network-bridge start vifnum=5 bridge=xenbr5 netdev=eth5
        /etc/xen/scripts/network-bridge start vifnum=6 bridge=xenbr6 netdev=eth6
        /etc/xen/scripts/network-bridge start vifnum=7 bridge=xenbr7 netdev=eth7
        /etc/xen/scripts/network-bridge start vifnum=8 bridge=xenbr8 netdev=eth8
        /etc/xen/scripts/network-bridge start vifnum=9 bridge=xenbr9 netdev=eth9

But with the 'network-bridge'-script from Debian I only got 4 bridges from 
xenbr0
up to xenbr3. So I exchanged the script with the one from the binary package 
from
xen.org and with that script everything worked as expected.
And now I made the upgrade via backports.org to hypervisor version 3.2 and 
there's
Xen Hypervisor version 3.0.3 and 3.2.0 installed and bootable. And it works
with Hypervisor 3.0.3 and 3.2.0 as long as  I make *no* upgrade of the Debian
package 'xen-utils-common'

        server:~# apt-show-versions xen-utils-common
        xen-utils-common/etch upgradeable from 3.0.3-0-2 to 3.2.0-1~bpo4+1


Tomorrow I will make that update and see what happens but the main problem seem
to me, that the 'network-bridge'-script stops setting up xenbr bridges. Is it
possible to set limitations regarding how many bridges are possible? Or is there
any other reason, why only 4 briges got up? I haven't found anything and the 
fact
that it works with the script from xen.org looks to me like an error in the 
Debian
script, or am I wrong?

Thanks!
Thomas

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users