Jacked network bridges
plug.org at todandlorna.com
Sat Jan 28 23:03:27 MST 2012
On 1/28/2012 3:12 PM, Gabriel Gunderson wrote:
> This is what I know:
> * Network B is jacked :)
> * The problem is at layer 2. I know this because I can't arping from
> set Y to set X even though they are tied to the same bridge.
> * There are no duplicate MAC addresses.
> * The whole process of building this setup is fully automated (via
> fabric) and can easily be recreated, so it not a human error; it's
> more like a misconfiguration (but why set X and not set Y?). Hosts in
> set X and Y are all created with the same build process.
> * The only thing that's different about them (and I think this *must*
> be key) is that set X also has the 3rd interface to the C network.
> But, that shouldn't have anything to do with network B not working :/
> * I need more sleep.
I'm guessing this has to do with VLAN tagging, and I'm not entirely sure
how all that works in virtual hosts let alone kvm/libvirt which I've
never used thus far. The VLAN tagging could be working on Set X
specifically because it has the 3rd interface. I don't know what that
3rd interface translates into on the wire, and on which of the 3 host's
wires, but it's probably more telling than you're giving it credit for.
Sorry I don't have more specific ideas on this. I'm kind of hoping a
sounding board effect will be beneficial for you here, as your situation
is very specific. Call me if you want to keep bouncing ideas back and
More information about the PLUG