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[Sean Dague <sean@xxxxxxxxx>]

Long old incomplete bug, probably should be set invalid. We possibly
need local switch config information for why this option seems needed in
jaroslav's environment.

** Changed in: nova
       Status: Confirmed => Invalid

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https://bugs.launchpad.net/bugs/1052776

Title:
  Missing prmisc mode on VLAN bridge

Status in OpenStack Compute (Nova):
  Invalid

Bug description:
  Hello,

  I experienced communication issue on VLAN network mode with multi_host
  = True. The instances cannot communicate through the network because
  VLAN bridge is not in PROMISC mode and it has associated IP address
  for nova-nework gateway.

  ip a show br_vlan100
  16: br_vlan100: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN 
      link/ether ..... brd ff:ff:ff:ff:ff:ff
      inet aa.bb.xx.yy/zz brd ..... scope global br_vlan100
         valid_lft forever preferred_lft forever

  Setting PROMISC mode on this interface fix the network traffic (fast
  fix at
  https://github.com/pulchart/nova/commit/0c86671d3f0e2ac4cae06a5e713584ee26724cec).

  Regards,
  Jaroslav

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