Ethernet bridging weirdness

[Douglas Stanley]

On Wed, Sep 15, 2010 at 10:58 AM, Soren Hansen <soren at ubuntu.com> wrote:
> On 15-09-2010 16:50, Douglas Stanley wrote:
>>> Come to think of it, I'm not sure "allow-hotplug br1" should even
>>> be there. Try removing that, too.
>> So are you suggesting I have no auto br1 or allow-hotplug br1?
>
> Yes.
>
Done, still no dice. have auto eth2, but no similar line for br0.

>> How will it start on boot then?
>
> By having eth2 turn up which is one of br1's bridge_ports.
>

Might be a problem that eth2 also doesn't come up. Well, it gets an
entry in /var/run/network/ifstate, so ifup THINKS it's up, but
ifconfig doesn't show it as being up.

>> Does anyone know just how I can debug the sittuation??
>
> Yes, but a mailing list is annoyingly slow for this kind of thing. If
> you could hop on #ubuntu-server on IRC, that would be much easier.
>
>

I am in #ubuntu-server on IRC. No one was responding to my question
there, so that's when I asked on the mailing list :)

>> The devices are abviously attempting to get configured, as they are
>> getting entries put in /var/run/network/ifstate, however, they are
>> not actually coming up!
>
> I suspect the order in which stuff turns up has something to do with it.
>

Makes sense, but why would two physically identical servers, both
installed and configured identically, work differently??

Thanks,
Doug

> --
> Soren Hansen
> Ubuntu Developer    http://www.ubuntu.com/
> OpenStack Developer http://www.openstack.org/
>



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