Comment 0 for bug 1640643

When attach interface after creating a VM, error ossurs in nova-compute.log:

$ nova interface-attach --net-id <net_id> 9b93ba8d-bb9e-45df-86aa-20eb43d9c219
...
2016-11-04 16:23:11.845 18507 WARNING nova.compute.manager [req-ceeb5495-aff5-48d9-ba6b-7b452f2810c7 1bcb57c137e6457983b164dd986803f6 9fd78db620d54297b256edf4eae36a51 - - -] [instance: 9b93ba8d-bb9e-45df-86aa-20eb43d9c219] attach interface failed , try to deallocate port d813ecdd-fb1c-4d29-ad1e-29fba6ff309b, reason: Invalid input received: vif type unbound not supported
...
2016-11-04 16:23:13.220 18507 ERROR oslo_messaging.rpc.dispatcher [req-ceeb5495-aff5-48d9-ba6b-7b452f2810c7 1bcb57c137e6457983b164dd986803f6 9fd78db620d54297b256edf4eae36a51 - - -] Exception during message handling: Failed to attach network adapter device to 9b93ba8d-bb9e-45df-86aa-20eb43d9c219