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[Launchpad Bug Tracker <1287485@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/1287485

Title:
  No traffic in GRE tunnel with ML2

Status in OpenStack Neutron (virtual network service):
  Expired

Bug description:
  This is a multi-node installation with one controller node, one
  network node and one compute node. All nodes are VMs running in a
  XenServer 6.2 server. ML2 plugin is configured to support neutrun-
  server running in controller node.

  In both network node and dom0, br-int and br-tun are both existed and
  gre ports seem good. But if I tried to ping a VM from network node, I
  can only get traffic from br-int on network node. No traffic on the
  physical interface of network node which used to transmit inter VM
  data. Of course, the VM cannot get a IP address or ping the gateway.

  The same thing happened in Dom0: traffic can only be captured on br-
  int, but no data on physic interface.

  On network node:
  xxxx@os-network:~$ sudo ovs-vsctl show
  65b85364-5313-4c6e-879a-47eb02eeeb62
      Bridge br-tun
          Port br-tun
              Interface br-tun
                  type: internal
          Port patch-int
              Interface patch-int
                  type: patch
                  options: {peer=patch-tun}
          Port "gre-2"
              Interface "gre-2"
                  type: gre
                  options: {in_key=flow, local_ip="10.3.0.15", out_key=flow, remote_ip="10.3.0.10"}
      Bridge br-int
          Port patch-tun
              Interface patch-tun
                  type: patch
                  options: {peer=patch-int}
          Port "tapb3202ff8-84"
              tag: 4095
              Interface "tapb3202ff8-84"
                  type: internal
          Port br-int
              Interface br-int
                  type: internal
          Port "qr-3faa3fe7-5c"
              tag: 1
              Interface "qr-3faa3fe7-5c"
                  type: internal
          Port "tap88bf4722-01"
              tag: 1
              Interface "tap88bf4722-01"
                  type: internal
      Bridge br-ex
          Port "qg-ac2d1761-c0"
              Interface "qg-ac2d1761-c0"
                  type: internal
          Port "eth0"
              Interface "eth0"
          Port "qg-f90546e4-6c"
              Interface "qg-f90546e4-6c"
                  type: internal
          Port br-ex
              Interface br-ex
                  type: internal
      ovs_version: "1.10.2"

  On Dom0:
  [root@cloud-main ~]# ovs-vsctl show
  88b05926-605a-48b0-9dfd-bfd519994720
      Bridge "xapi3"
          fail_mode: standalone
          Port patch-tun
              Interface patch-tun
                  type: patch
                  options: {peer=patch-int}
          Port "vif8.3"
              Interface "vif8.3"
          Port "vif9.0"
              Interface "vif9.0"
          Port "xapi3"
              Interface "xapi3"
                  type: internal
      Bridge "xenbr2"
          fail_mode: standalone
          Port "eth2"
              Interface "eth2"
          Port "vif4.2"
              Interface "vif4.2"
          Port "xenbr2"
              Interface "xenbr2"
                  type: internal
          Port "vif8.1"
              Interface "vif8.1"
      Bridge "xenbr1"
          fail_mode: standalone
          Port "vif8.0"
              Interface "vif8.0"
          Port "vif2.1"
              Interface "vif2.1"
          Port "eth1"
              Interface "eth1"
          Port "vif3.1"
              Interface "vif3.1"
          Port "xenbr1"
              Interface "xenbr1"
                  type: internal
          Port "vif1.0"
              Interface "vif1.0"
          Port "vif4.1"
              Interface "vif4.1"
      Bridge "xenbr3"
          fail_mode: standalone
          Port "xenbr3"
              Interface "xenbr3"
                  type: internal
          Port "eth3"
              Interface "eth3"
      Bridge "xenbr0"
          fail_mode: standalone
          Port "xenbr0"
              Interface "xenbr0"
                  type: internal
          Port "vif3.0"
              Interface "vif3.0"
          Port "vif1.1"
              Interface "vif1.1"
          Port "vif4.0"
              Interface "vif4.0"
          Port "vif2.0"
              Interface "vif2.0"
          Port "eth0"
              Interface "eth0"
          Port "vif8.2"
              Interface "vif8.2"
      Bridge br-tun
          Port patch-int
              Interface patch-int
                  type: patch
                  options: {peer=patch-tun}
          Port "gre-1"
              Interface "gre-1"
                  type: gre
                  options: {in_key=flow, local_ip="10.3.0.10", out_key=flow, remote_ip="10.3.0.15"}
          Port br-tun
              Interface br-tun
                  type: internal
      ovs_version: "1.4.6"

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