neutron/releasenotes
Slawek Kaplonski 44b159aa9f [OVS] Add mac-table-size to be set on each ovs bridge
By default number of MAC addresses which ovs stores in memory
is quite low - 2048.

Any eviction of a MAC learning table entry triggers revalidation.
Such revalidation is very costly so it cause high CPU usage by
ovs-vswitchd process.

To workaround this problem, higher value of mac-table-size
option can be set for bridge. Then this revalidation will happen
less often and CPU usage will be lower.
This patch adds config option for neutron-openvswitch-agent to allow
users tune this setting in bridges managed by agent.
By default this value is set to 50000 which should be enough for most
systems.

Change-Id: If628f52d75c2b5fec87ad61e0219b3286423468c
Closes-Bug: #1775797
(cherry picked from commit 1f8378e0ac)
2018-06-20 18:17:21 +00:00
..
notes [OVS] Add mac-table-size to be set on each ovs bridge 2018-06-20 18:17:21 +00:00
source Do not use prelude section for individual release notes 2017-08-04 07:17:52 +00:00