Multiple network interfaces setup

Multiple network interfaces setup

[Lukas Kubin]

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I found the scripts for network interfaces and bridges setup 
(/etc/xen/scripts) in last versions of Xen really useful. But I need to 
utilize more physical interfaces available on server. I wish to route 
some of my domains through one NIC and some through the other one 
because of different VLANs they should appear in.
Do I have to perform such setup "by hand" or the current scripts can do 
it for me somehow? Looking at the code it seems that only one default 
interface can be setup this way.
Thank you.

lukas

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Re: Multiple network interfaces setup

[Goetz Bock]

On Mon, Jan 31 '05 at 15:28, Lukas Kubin wrote:
> I found the scripts for network interfaces and bridges setup 
> (/etc/xen/scripts) in last versions of Xen really useful. But I need to 
> utilize more physical interfaces available on server. [ ... ]
> Do I have to perform such setup "by hand" or the current scripts can do 
> it for me somehow?

I've just replaced the network script with a shell script that returns
true/0 and done all the presetup by hand.

The vif-bridge script is called when a new domain's interface comes up.
It looks like if you can pass a bridge name to the vif-bridge script,
from the config file. Maybe that's enough for your needs.
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Re: Multiple network interfaces setup

[Barry Flanagan]

Goetz Bock wrote:

> 
> On Mon, Jan 31 '05 at 15:28, Lukas Kubin wrote:
>> I found the scripts for network interfaces and bridges setup
>> (/etc/xen/scripts) in last versions of Xen really useful. But I need to
>> utilize more physical interfaces available on server. [ ... ]
>> Do I have to perform such setup "by hand" or the current scripts can do
>> it for me somehow?
> 
> I've just replaced the network script with a shell script that returns
> true/0 and done all the presetup by hand.
> 
> The vif-bridge script is called when a new domain's interface comes up.
> It looks like if you can pass a bridge name to the vif-bridge script,
> from the config file. Maybe that's enough for your needs.


I have 2 nics, and it works for me by a small change to /etc/init.d/xend:

I simply include an additional call to /etc/xen/scripts/network before xend
start and after xend stop to set up the second interface. 

Hope this helps.

#!/bin/bash
#
# xend          Script to start and stop the Xen control daemon.
#
# Author:       Keir Fraser <keir.fraser@cl.cam.ac.uk>
#
# chkconfig: 2345 98 01
# description: Starts and stops the Xen control daemon.

case "$1" in
  start)
        /etc/xen/scripts/network start bridge=xen-br1 netdev=eth1
antispoof=yes
        xend start
        ;;
  stop)
        xend stop
        /etc/xen/scripts/network stop bridge=xen-br1 netdev=eth1
antispoof=yes
        ;;
  status)
        xend status
        ;;
  restart|reload)
        xend restart
        ;;
  *)
        # do not advertise unreasonable commands that there is no reason
        # to use with this device
        echo $"Usage: $0 {start|stop|status|restart|reload}"
        exit 1
esac

exit $?




-- 

-Barry Flanagan


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