neutron

API for l2 agent extensions (+ovs flow management)

Registered by Armando Migliaccio on 2015-11-24

L2 agent extensions were introduced in Liberty. Currently they don't have any way to influence agents that they run inside. For example, there is no way they can set flows for OVS bridges, create new tables, add patch ports, etc.

Multiple subprojects (SFC, BGP-VPN) expressed the need for such mechanism that would allow them all mentioned above. Without it, they are forced to patch the agent code, which does not help their adoption, and makes Neutron platform more scattered.

Mitaka effort: http://specs.openstack.org/openstack/neutron-specs/specs/mitaka/l2-agent-extensions-agent-api.html

Blueprint information

Status:: Complete

Approver:: None

Priority:: Low

Drafter:: Miguel Angel Ajo

Direction:: Approved

Assignee:: David Shaughnessy

Definition:: Approved

Series goal:: Accepted for pike

Implementation:: Implemented

Milestone target:: pike-2

Started by: Armando Migliaccio on 2016-11-01

Completed by: Slawek Kaplonski on 2021-04-14

Related branches

lp://staging/~cisco-openstack/neutron/l2network-plugin

Related bugs

Bug #1517903: [RFE] Add agent specific API for l2 agent extensions	Fix Released
Bug #1563967: [RFE] Extend l2-extensions-api for flow management	Won't Fix

Sprints

Whiteboard

Dec-01-2016(armax): spec in review, unlikely this is gonna make the code cut.

Sep-08-2016(armax): deferred to Ocata

Aug-02-2016(mangelajo): continuing effort on bug 1563967, spec seems to be defined, and probably ready, and implementation is started, and it's still to be discused, but it will span to ocata.
May-19-2016(armax): bug 1563967 prompted a continuation of this effort.

01-feb-2016(armax): spec needs merging. Status update:

http://eavesdrop.openstack.org/meetings/networking/2016/networking.2016-01-25-21.01.log.html#l-150

Specs: https://review.openstack.org/#/c/263819/ (done)
https://review.openstack.org/#/c/320439/ (1 +2)

Patch: https://review.openstack.org/267591

Gerrit topic: https://review.openstack.org/#q,topic:bp/l2-api-extensions,n,z

Gerrit topic: https://review.openstack.org/#q,topic:bp/vlan-aware-vms,n,z

Addressed by: https://review.openstack.org/349990
ovs-agent: Seperate VLAN mapping outside of the agent

(?)