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RE: [Xen-users] [XCP] openvswitch controller using

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: RE: [Xen-users] [XCP] openvswitch controller using
From: Martin Perez Barreiro <perezbarreiro@xxxxxxxxx>
Date: Wed, 1 Sep 2010 22:06:11 -0300
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Hi all,

Im having the same truble Larkov Alexey mentioned, connection with the controller get suddenly broken with no error messages in the log files. I wonder if someone has any clue what might be going on?

Kind Regards,


I'm using XCP 0.5.0 version.


In the same host in debian VM I installed SNAC http://www.openflowswitch.org/wp/snac/ 1.0 as openflow controller.


1. Is it possible to setup openvswitch controller from xsconsole?

Controller (config)  xxx.xxx.xxx.xxx - display <SNAC ip address>

Controller (in-use)  <None> - always display "None"


2. I tried to use folowing commands:

ovs-vsctl set-controller xenbr0 tcp:<SNAC ip address>

For a few minutes everything works good and I can manage switch from <SNAC ip address>, but than connection to host has broken suddenly.

Connection to host's VM's may works longer, but usually lost also or a bit later.

Connection immediately restored after command: ovs-vsctl del-controller xenbr0.

In SNAC contoller switch looks good, no denied packets.


I can't find any criminal in log files.

I'd be appreciate for any help and advice how to dig the problem.

Kind regards,
Larkov Alexey

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