--- issues: - During the ovs upgrade for 2.5 to 2.6 we need to workaround the classic yum update command by handling the upgrade of the package separately to not loose the IPs and the connectivity on the nodes. The workaround is discussed here https://bugs.launchpad.net/tripleo/+bug/1669714 upgrade: - The upgrade from openvswitch 2.5 to 2.6 is handled gracefully and there should be no user impact in particular no restart of the openvswitch service. For more information please see the related bug above which also links the relevant code reviews. The workaround (transparent to the user/doesn't require any input) is to download the OVS package and install with --nopostun and --notriggerun options provided by the rpm binary.