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[Launchpad Bug Tracker <1498356@xxxxxxxxxxxxxxxxxx>]

[Expired for neutron because there has been no activity for 60 days.]

** Changed in: neutron
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1498356

Title:
  lbaas: SSH/Iperf/Siege traffic failed with default MTU 1500.

Status in neutron:
  Expired

Bug description:
  openstack is installed with ubuntu 14.04, running siege tool/ssh/iperf
  will be failed if overlay vm is using default MTU 1500, after change
  MTU to 1450, then issue is fixed.

  1. create LB pool and vip using same subnet (one-arm)
  2. add 1 backend server and 1 client.
  3. running sige tool/iperf/ssh between client and server.  >>>>>it will be failed
  4. Change MTU on client and server to 1450.  >>>successful.

  without LB,no need to change MTU, there is no such issue.

  Another workaround is to change all underlay interface MTU to more
  than 1500. e.g. 9000

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