[Openstack] [Neutron]Can Neutron support multiple mechanism drivers on the same compute node

Kevin Benton kevin at benton.pub
Sun Jul 24 00:07:43 UTC 2016


It can as long as they use different vnic_types. When the agent-based
mechanism drivers determine if they can bind a port on the compute node
they examine the host as well as the vnic_type.

This function is what an agent-based mech driver uses:
https://github.com/openstack/neutron/blob/dcb43cf85e8764d3167fc307bcd81a80abf09644/neutron/plugins/ml2/drivers/mech_agent.py#L85-L114

On Sat, Jul 23, 2016 at 1:02 PM, Zhou, Bin <Bin_Zhou at comcast.com> wrote:

> Can Neutron support multiple mechanism drivers on the same compute node? I
> thought the answer was “no”. But I start to doubt when I read configuration
> guide about SR-IOV driver. Particularly the following bugs:
> SR-IOV port doesn’t reach OVS port on same compute node:
> https://bugs.launchpad.net/neutron/+bug/1492228
> No connectivity when Launching an instance with Openvswitch interface when
> using SR-IOV: https://bugzilla.redhat.com/show_bug.cgi?id=1174864
>
> Can anyone kindly help me to clarify it? Thanks a lot!
>
> Bin Zhou
>
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