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RE: [Xen-users] Bridge Changes Cause Connections to Drop

  • To: "Nick Couchman" <Nick.Couchman@xxxxxxxxx>, "XEN Mailing List" <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: Jeff Sturm <jeff.sturm@xxxxxxxxxx>
  • Date: Thu, 6 Aug 2009 20:46:40 -0400
  • Cc:
  • Delivery-date: Thu, 06 Aug 2009 17:48:52 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>
  • Thread-index: AcoWxP3iklL3OUnbSkW/NsHgpWQd6gAM1Zbw
  • Thread-topic: [Xen-users] Bridge Changes Cause Connections to Drop



Not sure of the answer to your question, but I'm curious whether you have STP turned on in your bridge interface.


If you do, you might try turning it off, and vice versa, to see if it helps your network infrastructure respond to changes in topology either way.




From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Nick Couchman
Sent: Thursday, August 06, 2009 2:38 PM
To: XEN Mailing List
Subject: [Xen-users] Bridge Changes Cause Connections to Drop


This may be more of a Linux Bridge question, but I thought I'd ask on the XEN list just to see if anyone has any experience with this.  I'm running Xen 3.2 on SLES10 SP2.  I run several XP Virtual Machines that people can log in to remotely (via RDP).  Many of these machines sit on the same bridge on the dom0 machine, and I'm running into a situation where anytime the "bridge topology" changes the RDP connections are lost.  So, if I reboot one of the VMs, which causes the bridge to first drop the Xen virtual interface for that VM, then re-add it under the new ID, everyone loses their connections to the other VMs and has to reconnect.  I did some packet tracing, and all I found was an RST packet, but no indication as to why the host sent the RST packet.  Can anyone offer any insight into this issue?




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