neutron

Open vSwitch to use patch ports in place of veth pairs for vlan n/w

Registered by David Mahony

The current implementation for connecting openvswtich bridges is via veth pairs when not using vxlan or gre tunnels.
This blueprint proposes the use of openvswitch patch-ports for local, flat and vlan deployments.

Utilizing patch-ports in place of veth pairs enables the use of performant user space virtual switches, example, NFV context, whilst providing some general performance benefits due to the reduced number of lookups.

A fall back to veth pairs shall be implemented in the eventuality patch-ports are not supported.

* changes to neutron/plugins/openvswitch/agent/ovs_neutron_agent.py

Blueprint information

Status:
Complete
Approver:
Kyle Mestery
Priority:
Medium
Drafter:
David Mahony
Direction:
Needs approval
Assignee:
David Mahony
Definition:
Superseded
Series goal:
None
Implementation:
Unknown
Milestone target:
None
Completed by
David Mahony

Related branches

Sprints

Whiteboard

12-June (mestery): Removing Juno target for now as the specification isn't approved. Once it's approved, we can retarget this.

28-May (mestery): Moving this to Juno-2, as the BP is not approved and Juno-1 is only 2 weeks out.

code has been developed, and to be released shortly

Gerrit topic: https://review.openstack.org/#q,topic:openvswitch-patch-port-use,n,z

Addressed by: https://review.openstack.org/96183
    enable patch ports when availble for connecting openvswitch bridges

Gerrit topic: https://review.openstack.org/#q,topic:bp/openvswitch-patch-port-use,n,z

Addressed by: https://review.openstack.org/100939 (abandoned)
    enables patch ports when availble for connecting openvswitch bridges

code has been abandoned and will be addressed by the following bugs

Addressed by: https://bugs.launchpad.net/neutron/+bug/1285335
    Openvswitch agent should use ovs patch ports instead veths

Addressed by: https://bugs.launchpad.net/neutron/+bug/1331569
    Open vSwitch Agent should use ovs_lib to list bridges not ip_lib

this feature should now be supported with the completion of both bugs above (1331569,1285335)

(?)

Work Items