Re: [Xen-devel] networking oddities, present status ? changeset: 7145:71466686d026

[Andrew Theurer <habanero@xxxxxxxxxx>]

Ian Pratt wrote:

> > I have been experiencing some oddities as well.  Xen/bridge 
> > networking works on some switches, but not on others.  Also 
> > if I have one host with a domU communicating to another host, 
> > an unrelated host (with xen) will sometimes get "peth0: 
> > received packet with  own address as source address" error 
> > messages.  I have to wonder if all these bridges on the xen 
> > equipped hosts need unique MAC addresses (they all have 
> > fe:ff:ff:ff:ff:ff)
> >    
> Interesting. Perhaps run a "tcpdump ether host fe:ff:ff:ff:ff:ff" and
> see if any other host is sending packets with that as a src address. I
> wander if one of the hosts on the network has STP turned on?
>  
I give that a shot.  I have a feeling at least one of the three switches 
I have in my network may have STP on, and I guess I should check the xen 
hosts as well (they really should all be using the same network-bridge 
script).  If STP is off everywhere, is there any reason to not use 
fe:ff:ff:ff:ff:ff on all xen-br0 devices?
-Andrew


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel