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[Brian Haley <1587253@xxxxxxxxxxxxxxxxxx>]

JianGang - bugs.launchpad.net is not a support tool, you should be using
ask.openstack.org, or the openstack@xxxxxxxxxxxxxxxxxxx list for
questions relating to how to configure neutron.

Unless you are suggesting a new enhancement and I'm mis-understanding?

** Changed in: neutron
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1587253

Title:
  Make logic network mtu to be Configurable

Status in neutron:
  Invalid

Bug description:
  In some scenes， Traffics of VMs belong to different logic network will pass through different physic network domains with various MTU values. like blow:
      -------                -------                  -------
      | VM1 |                | VM2 |                  | VM3 |
      -------                -------                  -------
         |                      |                        |
         |                      |                        |
         |                      |                        |
    -----------            -----------              -----------
    | tenant1 |            | tenant2 |              | tenant3 |
    | network |            | network |              | network |
    -----------            -----------              -----------
         |                      |                        |
         |                      |                        |
         |                      |                        |
      -------------------------------------------------------
      |                                                     |
      |             proivder   network                      |
      |             mtu=9000                                |
      -------------------------------------------------------
         |                      |                        |
         |                      |                        |
         |                      |                        |
    -----------            -----------              -----------
    | Physic  |            | Physic  |              | physic  |
    | network1|            | network2|              | network3|
    | mtu=1500|            | mtu=1200|              | mtu=9000|
    -----------            -----------              -----------

  tenant1 network pass through physic network1
  tenant2 network pass through physic network2
  tenant3 network pass through physic network3

  So, I suggest to make the logic network MTU to be configurable to
  solve the problem.

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