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[Bug 1706788] [NEW] bgpspeaker.speaker [-] unpack requires a string argument of length 16

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Public bug reported:

I created both IPv4 and IPv6 Peering between BGP_DRAGENT and CISCO
ROUTER, IPv4 Peering works perfect, routes exchanged no problem.

IPv6 Peering however is flapping, up and down. Throwing these messages

2017-07-26 16:48:26.566 16486 INFO bgpspeaker.peer [-] Connection to peer: fd00:172:16:1::1 established
2017-07-26 16:48:26.575 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer 2.2.2.2 for remote_as=10 is UP.
2017-07-26 16:48:26.585 16486 INFO bgpspeaker.peer [-] Connection to peer fd00:172:16:1::1 lost, reason: unpack requires a string argument of length 16 Resetting retry connect loop: False
2017-07-26 16:48:26.585 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer fd00:172:16:1::1 for remote_as=10 went DOWN.
2017-07-26 16:48:26.586 16486 INFO bgpspeaker.speaker [-] unpack requires a string argument of length 16
2017-07-26 16:48:57.572 16486 INFO bgpspeaker.peer [-] Connection to peer: fd00:172:16:1::1 established
2017-07-26 16:48:57.581 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer 2.2.2.2 for remote_as=10 is UP.
2017-07-26 16:48:57.591 16486 INFO bgpspeaker.peer [-] Connection to peer fd00:172:16:1::1 lost, reason: unpack requires a string argument of length 16 Resetting retry connect loop: False
2017-07-26 16:48:57.592 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer fd00:172:16:1::1 for remote_as=10 went DOWN.
2017-07-26 16:48:57.593 16486 INFO bgpspeaker.speaker [-] unpack requires a string argument of length 16
2017-07-26 16:49:28.582 16486 INFO bgpspeaker.peer [-] Connection to peer: fd00:172:16:1::1 established
2017-07-26 16:49:28.592 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer 2.2.2.2 for remote_as=10 is UP.
2017-07-26 16:49:28.600 16486 INFO bgpspeaker.peer [-] Connection to peer fd00:172:16:1::1 lost, reason: unpack requires a string argument of length 16 Resetting retry connect loop: False

I was wondering what could be a solution for this?

Thanks

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1706788

Title:
  bgpspeaker.speaker [-] unpack requires a string argument of length 16

Status in neutron:
  New

Bug description:
  I created both IPv4 and IPv6 Peering between BGP_DRAGENT and CISCO
  ROUTER, IPv4 Peering works perfect, routes exchanged no problem.

  IPv6 Peering however is flapping, up and down. Throwing these messages

  2017-07-26 16:48:26.566 16486 INFO bgpspeaker.peer [-] Connection to peer: fd00:172:16:1::1 established
  2017-07-26 16:48:26.575 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer 2.2.2.2 for remote_as=10 is UP.
  2017-07-26 16:48:26.585 16486 INFO bgpspeaker.peer [-] Connection to peer fd00:172:16:1::1 lost, reason: unpack requires a string argument of length 16 Resetting retry connect loop: False
  2017-07-26 16:48:26.585 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer fd00:172:16:1::1 for remote_as=10 went DOWN.
  2017-07-26 16:48:26.586 16486 INFO bgpspeaker.speaker [-] unpack requires a string argument of length 16
  2017-07-26 16:48:57.572 16486 INFO bgpspeaker.peer [-] Connection to peer: fd00:172:16:1::1 established
  2017-07-26 16:48:57.581 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer 2.2.2.2 for remote_as=10 is UP.
  2017-07-26 16:48:57.591 16486 INFO bgpspeaker.peer [-] Connection to peer fd00:172:16:1::1 lost, reason: unpack requires a string argument of length 16 Resetting retry connect loop: False
  2017-07-26 16:48:57.592 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer fd00:172:16:1::1 for remote_as=10 went DOWN.
  2017-07-26 16:48:57.593 16486 INFO bgpspeaker.speaker [-] unpack requires a string argument of length 16
  2017-07-26 16:49:28.582 16486 INFO bgpspeaker.peer [-] Connection to peer: fd00:172:16:1::1 established
  2017-07-26 16:49:28.592 16486 INFO neutron_dynamic_routing.services.bgp.agent.driver.ryu.driver [-] BGP Peer 2.2.2.2 for remote_as=10 is UP.
  2017-07-26 16:49:28.600 16486 INFO bgpspeaker.peer [-] Connection to peer fd00:172:16:1::1 lost, reason: unpack requires a string argument of length 16 Resetting retry connect loop: False

  I was wondering what could be a solution for this?

  Thanks

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