Kilo: compute node binding_failed

asked 2015-07-27 11:31:58 -0600

tictactech gravatar image

updated 2015-07-27 19:50:01 -0600


I am currently configuring OpenStack Kilo on one machine as follows:

  • host -> Compute Node
  • VM on host -> Network Node
  • VM on host -> Controller Node

After following all the instructions in the install guide (OpenSUSE13.2) I receive an error when starting up an instance.

In the compute node logs it indicates: NovaException: Unexpected vif_type=binding_failed.

As far as I have been able to determine, this error appears to be triggered by an empty or undefined bridge_mappings for the ml2 plugin. However, the install guide does not specify a bridge_mappings entry for the compute node so it is unclear to me if that is intentional or missing when using the GRE tunnel configuration.

When I put in: bridge_mappings = external:br-tun

the instance boots but I am not sure if this is correct.

Any guidance appreciated.

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external network should be public network not bridge tunnel interface if you are using ovs ceheck the interface mapping aswell

billy gravatar imagebilly ( 2017-09-06 15:40:02 -0600 )edit