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[Bug 1175695] Re: L3 agent restart causes network outage

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 05 Mar 2014 20:08:15 -0000
Reply-to: Bug 1175695 <1175695@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: neutron
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1175695

Title:
  L3 agent restart causes network outage

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  When L3 agent is restarted, it destroys all existing namespaces and
  then recreates them.  This causes a network outage for the affected
  routers and floating IPs, even if those routers/floating IPs are still
  valid.  We should be able to preserve existing, valid namespaces
  across an agent restart and avoid the network outage.

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