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[spn221 <spn221@xxxxxxxxx>]

Public bug reported:

On Kilo, we have the following issue.
When newtron comes up, the bridges come up with value of 4095, which is out of range of 0-4094
Due to this the instance never comes up.
Once we delete and re-create it, it comes up fine

# ovs-vsctl show
0b80f15d-ee1d-48b7-90b5-9192ab423f20
Bridge br-int
fail_mode: secure
Port "qr-e1269850-cf"
tag: 4095
Interface "qr-e1269850-cf"
type: internal
Port "qg-7a2410cc-3e"
tag: 4095
Interface "qg-7a2410cc-3e"
type: internal
Port "qr-f41e6139-7e"
tag: 4095
Interface "qr-f41e6139-7e"
type: internal

Port "tap30314ee9-be"
tag: 4095
Interface "tap30314ee9-be"
type: internal
Port br-int
Interface br-int
type: internal
Port "tap24e08b6f-be"
tag: 4095
Interface "tap24e08b6f-be"
type: internal

[root@cassini ~]# ovs-vsctl show
0b80f15d-ee1d-48b7-90b5-9192ab423f20
Bridge br-int
fail_mode: secure
Port "qr-e1269850-cf"
tag: 4095
Interface "qr-e1269850-cf"
type: internal
Port "qg-7a2410cc-3e"
tag: 4095
Interface "qg-7a2410cc-3e"
type: internal
Port "qr-f41e6139-7e"
tag: 4095
Interface "qr-f41e6139-7e"
type: internal

Port "tap30314ee9-be"
tag: 4095
Interface "tap30314ee9-be"
type: internal
Port br-int
Interface br-int
type: internal
Port "tap24e08b6f-be"
tag: 4095
Interface "tap24e08b6f-be"
type: internal

deleted the existing instance, route and external network and re-created the neutron network again. didnot fell into the same tag values again.
here the info...

[root@cassini tmp]# ovs-vsctl show
0b80f15d-ee1d-48b7-90b5-9192ab423f20
Bridge br-int
fail_mode: secure
Port "qg-9698414d-56"
tag: 5
Interface "qg-9698414d-56"
type: internal
Port patch-tun
Interface patch-tun
type: patch
options:
{peer=patch-int}

Port "qvo86f86280-d0"
tag: 4
Interface "qvo86f86280-d0"
Port "qr-b643dac3-69"
tag: 4
Interface "qr-b643dac3-69"
type: internal
Port int-br-ex
Interface int-br-ex
type: patch
options:
{peer=phy-br-ex}

Port "qvo9ceab7b9-12"
tag: 3
Interface "qvo9ceab7b9-12"
Port "qr-5210e32f-a1"
tag: 3
Interface "qr-5210e32f-a1"
type: internal
Port br-int
Interface br-int
type: internal
Port "tap4d4815bb-9f"
tag: 4
Interface "tap4d4815bb-9f"
type: internal
Port "tape03b5305-94"
tag: 3
Interface "tape03b5305-94"
type: internal
Bridge br-tun
fail_mode: secure
Port br-tun
Interface br-tun
type: internal
Port patch-int
Interface patch-int
type: patch
options:
{peer=patch-tun}

Bridge br-ex
Port br-ex
Interface br-ex
type: internal
Port phy-br-ex
Interface phy-br-ex
type: patch
options:
{peer=int-br-ex}

Port "eno1"
Interface "eno1"
ovs_version: "2.3.1"
[root@cassini tmp]#

** Affects: neutron
     Importance: Undecided
         Status: New

** Summary changed:

- hile bringing up the neutron network on the openstack openstack virtual swtich internal bridges values might be greater than 4094
+ while bringing up the neutron network on the openstack kilo, virtual swtich internal bridges values might be greater than 4094

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Engineering Team, which is subscribed to neutron.
https://bugs.launchpad.net/bugs/1532106

Title:
  while bringing up the neutron network on the openstack kilo, virtual
  swtich internal bridges values might be greater than 4094

Status in neutron:
  New

Bug description:
  On Kilo, we have the following issue.
  When newtron comes up, the bridges come up with value of 4095, which is out of range of 0-4094
  Due to this the instance never comes up.
  Once we delete and re-create it, it comes up fine

  # ovs-vsctl show
  0b80f15d-ee1d-48b7-90b5-9192ab423f20
  Bridge br-int
  fail_mode: secure
  Port "qr-e1269850-cf"
  tag: 4095
  Interface "qr-e1269850-cf"
  type: internal
  Port "qg-7a2410cc-3e"
  tag: 4095
  Interface "qg-7a2410cc-3e"
  type: internal
  Port "qr-f41e6139-7e"
  tag: 4095
  Interface "qr-f41e6139-7e"
  type: internal

  Port "tap30314ee9-be"
  tag: 4095
  Interface "tap30314ee9-be"
  type: internal
  Port br-int
  Interface br-int
  type: internal
  Port "tap24e08b6f-be"
  tag: 4095
  Interface "tap24e08b6f-be"
  type: internal

  [root@cassini ~]# ovs-vsctl show
  0b80f15d-ee1d-48b7-90b5-9192ab423f20
  Bridge br-int
  fail_mode: secure
  Port "qr-e1269850-cf"
  tag: 4095
  Interface "qr-e1269850-cf"
  type: internal
  Port "qg-7a2410cc-3e"
  tag: 4095
  Interface "qg-7a2410cc-3e"
  type: internal
  Port "qr-f41e6139-7e"
  tag: 4095
  Interface "qr-f41e6139-7e"
  type: internal

  Port "tap30314ee9-be"
  tag: 4095
  Interface "tap30314ee9-be"
  type: internal
  Port br-int
  Interface br-int
  type: internal
  Port "tap24e08b6f-be"
  tag: 4095
  Interface "tap24e08b6f-be"
  type: internal

  deleted the existing instance, route and external network and re-created the neutron network again. didnot fell into the same tag values again.
  here the info...

  [root@cassini tmp]# ovs-vsctl show
  0b80f15d-ee1d-48b7-90b5-9192ab423f20
  Bridge br-int
  fail_mode: secure
  Port "qg-9698414d-56"
  tag: 5
  Interface "qg-9698414d-56"
  type: internal
  Port patch-tun
  Interface patch-tun
  type: patch
  options:
  {peer=patch-int}

  Port "qvo86f86280-d0"
  tag: 4
  Interface "qvo86f86280-d0"
  Port "qr-b643dac3-69"
  tag: 4
  Interface "qr-b643dac3-69"
  type: internal
  Port int-br-ex
  Interface int-br-ex
  type: patch
  options:
  {peer=phy-br-ex}

  Port "qvo9ceab7b9-12"
  tag: 3
  Interface "qvo9ceab7b9-12"
  Port "qr-5210e32f-a1"
  tag: 3
  Interface "qr-5210e32f-a1"
  type: internal
  Port br-int
  Interface br-int
  type: internal
  Port "tap4d4815bb-9f"
  tag: 4
  Interface "tap4d4815bb-9f"
  type: internal
  Port "tape03b5305-94"
  tag: 3
  Interface "tape03b5305-94"
  type: internal
  Bridge br-tun
  fail_mode: secure
  Port br-tun
  Interface br-tun
  type: internal
  Port patch-int
  Interface patch-int
  type: patch
  options:
  {peer=patch-tun}

  Bridge br-ex
  Port br-ex
  Interface br-ex
  type: internal
  Port phy-br-ex
  Interface phy-br-ex
  type: patch
  options:
  {peer=int-br-ex}

  Port "eno1"
  Interface "eno1"
  ovs_version: "2.3.1"
  [root@cassini tmp]#

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