I'd like to point out that this seems to be implemented correctly in neutron, but nova also needs to be modified accordingly. There are two places in nova where the bridge name is automatically determined:
1. nova/network/neutronv2/api.py - line 1596
2. nova/network/linux_net.py - line 1947
Apparently, only the first one is actually executed, at least in my configuration (provider networks with linux-bridge), but it prevents this new feature from working.
I'd like to point out that this seems to be implemented correctly in neutron, but nova also needs to be modified accordingly. There are two places in nova where the bridge name is automatically determined:
1. nova/network/ neutronv2/ api.py - line 1596 linux_net. py - line 1947
2. nova/network/
Apparently, only the first one is actually executed, at least in my configuration (provider networks with linux-bridge), but it prevents this new feature from working.