Xen users - Mar 2010 - Advice for moving from single to bonded interface?

I have some existing CentOS 5.4 / gitco Xen 3.4.1 dom0s and I want to
install some Intel 82576-based dual port gigabit NICs into them.  I want
to swap the existing single interface peth0/br0 config to use a bond
comprising of the two interfaces provided by this card.

I seem to remember some people here (Fajar?) prefer to disable Xen''s
network config scripts and use the native OS scripts instead.  Why you do
that and is it just a case of creating bond0 and assigning that to br0?


Thanks,

Matt.


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On Mon, Mar 8, 2010 at 9:07 PM, Matthew Law <matt@webcontracts.co.uk>
wrote:
> I have some existing CentOS 5.4 / gitco Xen 3.4.1 dom0s and I want to
> install some Intel 82576-based dual port gigabit NICs into them.  I want
> to swap the existing single interface peth0/br0 config to use a bond
> comprising of the two interfaces provided by this card.
>
> I seem to remember some people here (Fajar?) prefer to disable
Xen''s
> network config scripts and use the native OS scripts instead.  Why you do
> that and is it just a case of creating bond0 and assigning that to br0?
It''s mostly a matter of what you''re most comfortable with.

There were some problems with the interaction of Xen''s network-bridge
script with various other components on RHEL (and I assume it also
happens on other distros), especially in complex setup (like vlan and
bonding). See
https://bugzilla.redhat.com/buglist.cgi?quicksearch=xen+bridge+bond

While they''ll be fixed (eventually), using default OS config files
instead of xen''s network script results in working configuration. So I
simply stopped using xen''s default network-bridge script for anything
but the simplest setup.

-- 
Fajar

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