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Re: [Xen-users] Multiple bridges in startup



i added a new script to auto:

import os

os.system('./etc/xen/scripts/network start bridge=xen-br1 netdev=eth3')

os.system('xm create -f /etc/xen/xm.conf vmid=1')
os.system('xm create -f /etc/xen/xm.conf vmid=2')
os.system('xm create -f /etc/xen/xm.conf vmid=3')
os.system('xm create -f /etc/xen/xm.conf vmid=4')

my vif in the xm.conf file is:

vif = [ 'mac=aa:00:00:1a:%d:11, bridge=xen-br0' % (vmid), 'mac=aa:00:00:1a:%d:12, bridge=xen-br1' % (vmid)]

(i've tried them as two seperate lines as well ... ie. vif=[ and vif=[)

are you up and going now?

On Fri, 29 Apr 2005, Gil Freund wrote:

On 4/29/05, andrew mathes <amathes@xxxxxxxxxxxx> wrote:
ok, things seem to be ok on my side now, i just put the manual start in my
auto/ script directory, and seems to start the bridge correctly.  However,
the secondary vif for every VM seems to be tied to the first bridge, no
matter how i bring it up (manually:./vif-bridge up domain=VM1 vif=vif1.1
bridge=xen-br1 mac=AA:00:00:00:00:12)

Questions:
1. Did you modify the distribution scripts or add a new one?
2. How did you configure the NIC's in the DomU config file?


the hwAddr of the resulting vif is ALWAYS the same as the first bridge
(xen-br0) and i can't seem to get it to tie to the second bridge ...
making networking fairly useless on that second nic

thanks for any help-

On Thu, 28 Apr 2005, Gil Freund wrote:

On 4/28/05, andrew mathes <amathes@xxxxxxxxxxxx> wrote:
wow, i was just going to post about this, i can't find it either ...

i think it's in xend-config.sxp: under
(network-script    network bridge=xen-br0 netdev=eth0)
(network-script    network bridge=xen-br1 netdev=eth3)

but this isn't actually setting up two bridges for me ...

Nor here. I can set up other bridges manual (see below)


and i think you don't need to declare specific MAC's, as long as the
bridge/vif is set up correctly.  ( I am specifying MAC's for DHCP
reservation)

any help for the both of us? maybe we'll figure it out together

OK, I will start with manual settings:

circus:/etc/xen/scripts# ./network start bridge=xen-br1 netdev=eth1
antispoof=yes
network start bridge=xen-br1 netdev=eth1 antispoof=yes
iptables: No chain/target/match by that name

in the domU I can see two NIC, but DHCP does not work. DomU domains
with static IPs work.

Now I have a bridge (xen-br1) using the mac address of eth1, however, when I do
./network stop bridge=xen-br1 netdev=eth1 antispoof=yes
xen-br1 us still up. Is this normal?


andrew

On Thu, 28 Apr 2005, Gil Freund wrote:

Hi,

Apologies: I recall this being asked (and answered) before, but I
cannot find the thread.

I have two NICs. I would like to setup three bridges:

xen-br0 - eth0
xen-br1 - eth1
xen-br2 - virtual only for domU interconnect

Where would be a suitable location to implement this so the startup
scripts pick this configuration?

Furthermore, do MAC addresses need to be explicitly declared in the
domU configuration files? The example files state that random MAC
addresses will be used, but simply stating nics=2 does not seem to
work.

Thanks


Gil

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