Miscellaneous openvswitch issues

From Notes_Wiki

<yambe:breadcrumb>Openvswitch|Openvswitch</yambe:breadcrumb>

Miscellaneous openvswitch issues

Upgrading database schema

If one upgrades openvswitch then database schema should also be upgraded using:

ovsdb-tool convert /usr/local/etc/openvswitch/conf.db vswitchd/vswitch.ovsschema

One can also delete the old database and create a new one as explained in intialization, if old database does not contains very useful configuration.