SLES10SP2, Bonding and XEN

[Michael Mollard]

Thanks, Simon.
Yep, read it many times ..
Will check again though.
Thanks.
Michael.


SIMON ORDIDGE wrote:
> Have you checked here:
>
> http://www.novell.com/communities/node/5071/sles-10-sp2-networking-under-xen-troubleshooting-and-recommendations+xen+bonding+sles+10&hl=en&ct=clnk&cd=2&gl=uk
>
> Simon
>
>   
>>>> On 01/08/2008 at 06:51, in message <489330FA.E927.0018.0 at mbc.qld.edu.au>,
>>>>         
> "Michael Mollard" <MollardM at mbc.qld.edu.au> wrote:
>   
>> Hi all,
>> We are struggling with an issue here and need to see if it is just us, or if 
>> it is a known issue.  And if so, what others are doing.
>>
>> We have SLES10SP2(64 bit) installed on a server.  It has 2 NICs, eth0, eth1. 
>>  We have configured them as bond0 (testing all sorts of modes for the bond).  
>> When we bring up the XEN kernel, Dom0 can ping happily to multiple other 
>> servers on the network.
>>
>> When we start a SLES10SP2 vm (or a Win2k3 VM) on the box (with a single 
>> virtual eth0 bridged to use bond0) it can ping certain hosts fine, but some 
>> (and always the same ones) will have a destination host unreachable.  
>>
>> If I remove one of the NICs (eth0/ eth1)from the bond in DOM0, the problem 
>> goes away in the vm.  Pings are instant everywhere.
>>
>> So it appears that the bond, in association with the vm, has an issue of 
>> some sort.  I can't work out why the hosts won't reply.  I have tried pinging 
>> Netware, Win2k3, and Linux hosts and some of each will reply, some will fail. 
>>  But always the same ones.  Remove a card from the bond, or remove bond 
>> altogether, and everything is fine.
>>
>> Has anyone else experienced this?  I'm sure our config isn't too complex, 
>> there must be others looking for High Availablity/aggregation with XEN?
>>
>> Much thanks.
>>
>>
>>
>> Michael Mollard
>> Network Administrator
>> Moreton Bay College
>> mollardm at mbc.qld.edu.au 
>> http://www.mbc.qld.edu.au 
>> Ph: (Direct) 07 3907 5712 / (Mob) 0417 631 801 
>> Fax: 07 3390 8919 ( http://www.mbc.qld.edu.au )
>>
>>
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-- 

Michael Mollard
Network Administrator
Moreton Bay College
Email: michael.mollard at mbc.qld.edu.au
Web: http://www.mbc.qld.edu.au
Phone: (Direct) 07 3907 5712 / (Mob) 0417 631 801 
Fax: 07 3390 8919