Re: [Xen-users] Network stops working after 12th domU is started

[Peter Braun <xenware@xxxxxxxxx>]

- dom0 distro?
- how do you specify disk form virtual domU?
- when you start 12th guest - xm console to that domU - can you ping
other domU?

Few years ago I faced similar problem. The problem was limit of MACs
per hw switch port.

Br

Peter



2010/2/23 Pasi Kärkkäinen <pasik@xxxxxx>:
> On Fri, Feb 19, 2010 at 03:45:25PM +0100, Michele wrote:
>> Hi,
>>
>> We're not sure what's causing it, but there seems to be some kind of
>> limit with our dom0: every time we have 11 domUs running and start a
>> new one, the network stops working for all domUs.
>> Basically, the dom0 works as usual and we can both ping it and ssh
>> into it, but all domU stop responding to pings and the only way to
>> access them is through the console from the dom0. If we then stop one
>> domU (doesn't matter which one) everything is back to work as usual
>> immediately after the domU has been stopped.
>>
>> We've got plenty of RAM and disk, so that's not a problem. Could it be
>> that network-bridge only supports a given number of guests for each
>> physical ethernet card? otherwise, what could it be?
>>
>> Thanks a lot for your help.
>>
>
> What does "xm info" say about free memory when you have 11 guests running,
> before you start the 12th guest?
>
> Do you have any errors in the dom0 "dmesg" ? How about "xm log"?
> Is "brctl show" output correct?
>
> -- Pasi
>
>
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