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[Xen-users] Bridges are not working

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-users] Bridges are not working
From: Leopold Palomo-Avellaneda <leo@xxxxxxxxxxxx>
Date: Fri, 22 May 2009 14:57:20 +0200
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I have been using xen with debian etch during two years. I had some problems 
during the initial steps, but after that the system was working without any 

Last week I upgrade the debian Lenny and my domU stopped to work (network)  
and I'm really lost.

My configuration is simple. I have a box with two nics. In one nic I have dom0 
(attached to a network) and in the other nix I have domU (attached to another 

domU boot, up the interfaces but no network. No packed throw the bridge.

my brctl show is:

bridge name     bridge id               STP enabled     interfaces
eth0            8000.001422757b2c       no              peth0
eth1            8000.000423a8b773       no              peth1

the important part of my sxp file is:

(network-script 'network-bridge netdev=eth1 bridge=eth1')

in domU the interface is eth1

on of the things that I don't like is that doing a tcpdump in the interface 
peth1, I got that there's traffic, but:

14:50:04.222421 STP 802.1d, Config, Flags [none], bridge-id 
806f.00:13:1a:a9:b3:00.8007, length 43
        message-age 1.00s, max-age 20.00s, hello-time 2.00s, forwarding-delay 

pay attention with the bridge-id 806f.00:13:1a:a9:b3:00.8007, not showed in 

So, please any idea what I'm doing wrong, or what's happening?

I'm running:

ii  xen-hypervisor-3.2-1-i386                 3.2.1-2                         
ii  xen-linux-system-2.6.26-2-xen-686         2.6.26-15lenny2                 
ii  xen-utils-3.2-1                           3.2.1-2                         
ii  xen-utils-common                          3.2.0-2                         
ii  xenman                                    0.5-2.1                         
ii  xenstore-utils                            3.2.1-2                         
ii  xenwatch                                  0.5.2-1                         

best regards,


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