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[OpenStack Infra <1576713@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.openstack.org/316395
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=37f26ad82f6fef8c6fc21903b8c8183424bfd3fe
Submitter: Jenkins
Branch:    master

commit 37f26ad82f6fef8c6fc21903b8c8183424bfd3fe
Author: Jens Rosenboom <j.rosenboom@xxxxxxxx>
Date:   Sat May 14 21:52:14 2016 +0200

    Fix network mtu in network_metadata
    
    The mtu field is hidden inside the "meta" section, so we have to get
    it from there.
    
    Change-Id: Ic44dcdb04cbaf8a007338258d74eec136a580289
    Closes-Bug: 1576713


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

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https://bugs.launchpad.net/bugs/1576713

Title:
  Network metadata fails to state correct mtu

Status in OpenStack Compute (nova):
  Fix Released

Bug description:
  Scenario:

  Instance is booted on Neutron tenant network with ML2 OVS driver and
  encapsulation. The MTU for that network is automatically calculated as
  1450. Instance has --config-drive=true set.

  Result:

  In <config_drive>/openstack/latest/network_data.json we get:

   "links": [{"ethernet_mac_address": "fa:16:3e:36:96:c8", "mtu": null,
  "type": "ovs", "id": "tapb989c3aa-5c", "vif_id": "b989c3aa-5c1f-
  4d2b-8711-b96c66604902"}]

  Expected:

  Have "mtu": "1450" instead.

  Environment:

  OpenStack Mitaka on Ubuntu 16.04

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