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[Bug 1255153] Re: Linuxbridge plugin doesn't return IP to VLAN interface when deleting a bridge

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 05 Mar 2014 20:11:50 -0000
Reply-to: Bug 1255153 <1255153@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

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

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https://bugs.launchpad.net/bugs/1255153

Title:
  Linuxbridge plugin doesn't return IP to VLAN interface when deleting a
  bridge

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

Bug description:
  Given a network setup like this on the network node (before starting
  any of the neutron services):

  eth0: inet 192.168.100.230/24

  eth0.1001@eth0: inet 172.24.4.224/28

  Now when the linuxbridge-agent needs to create a VLAN-bridge for the 1001 VLAN it will correctly enslave eth0.1001 into the bridge and move the IP Address from eth0.1001 to the bridge.
  But when linuxbridge removes the bridge again (e.g. because the last port on it was deleted) it will not reassign the IP back to the eth0.1001 device, but instead just take the whole interface down.

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