Reprogram flows when ovs-vswitchd restarts
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
openstack-manuals |
Invalid
|
Low
|
Unassigned |
Bug Description
https:/
commit d00446be1739c93
Author: Kyle Mestery <email address hidden>
Date: Fri May 16 04:21:32 2014 +0000
Reprogram flows when ovs-vswitchd restarts
When OVS is restarted, by default it will not reprogram flows which were
programmed. For the case of the OVS agent, this means a restart will cause
all traffic to be switched using the NORMAL action. This is undesirable for
a number of reasons, including obvious security reasons.
This change provides a way for the agent to check if a restart of ovs-vswitchd
has happened in the main agent loop. If a restart of ovs-vswitchd is detected,
the agent will run through the setup of the bridges on the host and reprogram
flows for all the ports connected.
DocImpact
This changes adds a new table (table 23) to the integration bridge, with a
single 'drop' flow. This is used to monitor OVS restarts and to reprogram
flows from the agent.
Conflicts:
neutron/
Change-Id: If9e07465c43115
Closes-Bug: #1290486
(cherry picked from commit 8e9f00a19dab98e
Do we document the flows in the OVS bridges? If not we can set this bug as invalid I guess.