[Xen-users] weird mtu problem with xen3.1 + bonding

[Jasper Spaans <jspaans@xxxxxxxxxxxxxxxxxxx>]

Hi list,

[Second try, couldn't find my original posting in the archives so it  
might have been eaten by a spamfilter]
I'm experiencing a weird problem which seems to be caused by the  
network layer. What happens is that our domU is sending out ethernet  
frames with sizes >MTU, which is not supposed to happen.
The setup is as follows:


peth0 \              /  vif0.0 -- dom0
       bond0 -- bobr0
peth1 /              \  vifN.0 -- domU

where bond0 is a HA bonding interface, and bobr0 is a bridge.


All these interfaces have mtu <= 1500 in both the dom0 and domU, and  
no MTUs set for specific routes, so I'd expect frames coming from  
those interfaces to behave nicely.
Versions:  xen 3.1.0
Dom0 kernel: 2.6.18-xen [from xen-3.1.0-install-x86_32p.tgz]
DomU kernel: 2.6.18-xen [the same]

I've tried lowering all MTUs in the system, but I can't seem to be  
getting it to work.
Anyone with good ideas?

Cheers,

Jasper
--
Jasper Spaans                                          http://jasper.es/
   11:59 up 11160 days, 2:46, 1 users, load averages: 6.00 6.00 6.02
             This line was last modified 0 seconds ago.




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