Public bug reported:
During provision of large scale vm's number several percent of vm's
fireup without network connectivity. We found that the reason of faulty
networking is the incorrect state in Openflow table and there is no
connectivity over vxlan between affected compute nodes and controllers.
A proper Openflow table shows complete list of vxlan interfaces to all compute
nodes and controllers:
cookie=0x98572d2e5f45dc06, duration=2639.513s, table=22, n_packets=212,
n_bytes=57108, priority=1,dl_vlan=10
actions=strip_vlan,load:0x30->NXM_NX_TUN_ID[],output:"vxlan-0afe0c74",output:"vxlan-0afe0c80",output:"vxlan-0afe0c0b",output:"vxlan-0afe0c0c",output:"vxlan-0afe0c0d",output:"vxlan-0afe0c7d",output:"vxlan-0afe0c66",output:"vxlan-0afe0c81",output:"vxlan-0afe0c6d",output:"vxlan-0afe0c6c",output:"vxlan-0afe0c69",output:"vxlan-0afe0c7a",output:"vxlan-0afe0c79",output:"vxlan-0afe0c78",output:"vxlan-0afe0c7f",output:"vxlan-0afe0c7e",output:"vxlan-0afe0c67",output:"vxlan-0afe0c7c",output:"vxlan-0afe0c83",output:"vxlan-0afe0c86",output:"vxlan-0afe0c87",output:"vxlan-0afe0c76",output:"vxlan-0afe0c84",output:"vxlan-0afe0c85",output:"vxlan-0afe0c75",output:"vxlan-0afe0c72",output:"vxlan-0afe0c73",output:"vxlan-0afe0c71",output:"vxlan-0afe0c6f",output:"vxlan-0afe0c7b",output:"vxlan-0afe0c6b",output:"vxlan-0afe0c6a",output:"vxlan-0afe0c6e",output:"vxlan-0afe0c77",output:"vxlan-0afe0c65",output:"vxlan-0afe0c70"
An incorrect state of Openflow table shows that the vxlan interfaces to
controllers are missing:
cookie=0xeee71baa637a6dde, duration=754.490s, table=22, n_packets=147,
n_bytes=39834, priority=1,dl_vlan=10
actions=strip_vlan,load:0x30->NXM_NX_TUN_ID[],output:"vxlan-0afe0c74",output:"vxlan-0afe0c80",output:"vxlan-0afe0c7d",output:"vxlan-0afe0c66",output:"vxlan-0afe0c81",output:"vxlan-0afe0c6d",output:"vxlan-0afe0c6c",output:"vxlan-0afe0c69",output:"vxlan-0afe0c7a",output:"vxlan-0afe0c79",output:"vxlan-0afe0c78",output:"vxlan-0afe0c7f",output:"vxlan-0afe0c7e",output:"vxlan-0afe0c67",output:"vxlan-0afe0c7c",output:"vxlan-0afe0c86",output:"vxlan-0afe0c87",output:"vxlan-0afe0c76",output:"vxlan-0afe0c84",output:"vxlan-0afe0c85",output:"vxlan-0afe0c75",output:"vxlan-0afe0c72",output:"vxlan-0afe0c73",output:"vxlan-0afe0c71",output:"vxlan-0afe0c6f",output:"vxlan-0afe0c7b",output:"vxlan-0afe0c6b",output:"vxlan-0afe0c6a",output:"vxlan-0afe0c6e",output:"vxlan-0afe0c65",output:"vxlan-0afe0c70"
Restarting neutron_openvswitch_agent container fix the problem on
affected compute node by adding missing vxlans.
** Affects: neutron
Importance: Undecided
Status: New
** Tags: in-stable-pike
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https://bugs.launchpad.net/bugs/1754695
Title:
Incorrect state of the Openflow table
Status in neutron:
New
Bug description:
During provision of large scale vm's number several percent of vm's
fireup without network connectivity. We found that the reason of
faulty networking is the incorrect state in Openflow table and there
is no connectivity over vxlan between affected compute nodes and
controllers.
A proper Openflow table shows complete list of vxlan interfaces to all
compute nodes and controllers:
cookie=0x98572d2e5f45dc06, duration=2639.513s, table=22, n_packets=212,
n_bytes=57108, priority=1,dl_vlan=10
actions=strip_vlan,load:0x30->NXM_NX_TUN_ID[],output:"vxlan-0afe0c74",output:"vxlan-0afe0c80",output:"vxlan-0afe0c0b",output:"vxlan-0afe0c0c",output:"vxlan-0afe0c0d",output:"vxlan-0afe0c7d",output:"vxlan-0afe0c66",output:"vxlan-0afe0c81",output:"vxlan-0afe0c6d",output:"vxlan-0afe0c6c",output:"vxlan-0afe0c69",output:"vxlan-0afe0c7a",output:"vxlan-0afe0c79",output:"vxlan-0afe0c78",output:"vxlan-0afe0c7f",output:"vxlan-0afe0c7e",output:"vxlan-0afe0c67",output:"vxlan-0afe0c7c",output:"vxlan-0afe0c83",output:"vxlan-0afe0c86",output:"vxlan-0afe0c87",output:"vxlan-0afe0c76",output:"vxlan-0afe0c84",output:"vxlan-0afe0c85",output:"vxlan-0afe0c75",output:"vxlan-0afe0c72",output:"vxlan-0afe0c73",output:"vxlan-0afe0c71",output:"vxlan-0afe0c6f",output:"vxlan-0afe0c7b",output:"vxlan-0afe0c6b",output:"vxlan-0afe0c6a",output:"vxlan-0afe0c6e",output:"vxlan-0afe0c77",output:"vxlan-0afe0c65",output:"vxlan-0afe0c70"
An incorrect state of Openflow table shows that the vxlan interfaces to
controllers are missing:
cookie=0xeee71baa637a6dde, duration=754.490s, table=22, n_packets=147,
n_bytes=39834, priority=1,dl_vlan=10
actions=strip_vlan,load:0x30->NXM_NX_TUN_ID[],output:"vxlan-0afe0c74",output:"vxlan-0afe0c80",output:"vxlan-0afe0c7d",output:"vxlan-0afe0c66",output:"vxlan-0afe0c81",output:"vxlan-0afe0c6d",output:"vxlan-0afe0c6c",output:"vxlan-0afe0c69",output:"vxlan-0afe0c7a",output:"vxlan-0afe0c79",output:"vxlan-0afe0c78",output:"vxlan-0afe0c7f",output:"vxlan-0afe0c7e",output:"vxlan-0afe0c67",output:"vxlan-0afe0c7c",output:"vxlan-0afe0c86",output:"vxlan-0afe0c87",output:"vxlan-0afe0c76",output:"vxlan-0afe0c84",output:"vxlan-0afe0c85",output:"vxlan-0afe0c75",output:"vxlan-0afe0c72",output:"vxlan-0afe0c73",output:"vxlan-0afe0c71",output:"vxlan-0afe0c6f",output:"vxlan-0afe0c7b",output:"vxlan-0afe0c6b",output:"vxlan-0afe0c6a",output:"vxlan-0afe0c6e",output:"vxlan-0afe0c65",output:"vxlan-0afe0c70"
Restarting neutron_openvswitch_agent container fix the problem on
affected compute node by adding missing vxlans.
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