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[OpenStack Infra <1567502@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/302946
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=5cdd7ae574312a7499a8768c1752d9bc27ff7d20
Submitter: Jenkins
Branch:    master

commit 5cdd7ae574312a7499a8768c1752d9bc27ff7d20
Author: Oleg Bondarev <obondarev@xxxxxxxxxxxx>
Date:   Thu Apr 7 19:27:38 2016 +0300

    Values for [ml2]/physical_network_mtus should not be unique
    
    Obviously there could be physical networks with same MTU.
    The patch sets unique_values to False when parsing physical_network_mtus
    Unit test added.
    
    Closes-Bug: #1567502
    Change-Id: I46e5b5d3f7033a974fca40342af6dff7c71a9a4a


** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1567502

Title:
  [ml2]/physical_network_mtus impoperly handled

Status in neutron:
  Fix Released

Bug description:
  We're using [ml2]/physical_network_mtus to specify mappings like this
  one:

      [ml2]
      physical_network_mtus = physnet1:1500,physnet2:1500

  In this try/except
  https://github.com/openstack/neutron/blob/master/neutron/plugins/ml2/drivers/helpers.py#L37:

          try:
              self.physnet_mtus = utils.parse_mappings(
                  cfg.CONF.ml2.physical_network_mtus
              )
          except Exception:
              self.physnet_mtus = []

  if you specify the option above, neutron.common.utils.parse_mappings
  fails with:

      ValueError: Value 1500 in mapping: 'physnet2:1500' not unique

  That's because you need to call neutron.common.utils.parse_mappings
  with unique_values=False

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