Re: [Xen-users] Problem bridging multiple NICs

[Jason Kwon <jason.kwon@xxxxxxxxxxxx>]

Fajar A. Nugraha wrote:
> On Thu, Sep 3, 2009 at 8:57 AM, Jason Kwon<jason.kwon@xxxxxxxxxxxx> wrote:
>
> > I have static IP addresses assigned to each NIC.  Simple network
> > activity like ping or ssh works on all three physical links.
> What does your network setup looks like? Are all three NICs on the
> same network? Is the client on the same networks as one of the three
> NICs?
eth0 is on one network (let's call it network A).  eth1 and eth2 are two 
ports of a dual-port 10GbE NIC, and they are directly connected to the 
client machine (I assigned class C addresses to eth1/eth2).  The client 
can reach the Xen server either through network A, or through the two 
direct 10GbE links.
> > I have not started any DomU guests on this machine.  If I turn off
> > network bridging in the Xen configuration, then everything returns to
> > normal (I can run nuttcp/NFS across all three links at normal speed), so
> > something with the bridging and renaming of the physical links is
> > affecting network behavior.
> You can try creating bridges manually (or using
> /etc/sysconfig/network-scripts/ifcfg-*) and see if it makes a
> difference.
Thanks, I'll try that next.

Jason


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