Comment 4 for bug 1412286

Reviewed: https://review.opencontrail.org/7739
Committed: http://github.org/Juniper/contrail-provisioning/commit/a235dbb658f16d1f7fc35befa95d8069b002f2f2
Submitter: Zuul
Branch: master

commit a235dbb658f16d1f7fc35befa95d8069b002f2f2
Author: Jeya ganesh babu  <email address hidden>
Date: Mon Feb 23 13:55:42 2015 -0800

Live migration provision changes for vgw changes

Closes-Bug: #1412286, #1424310
Issue: Change in the vgw in 2.1 needs change in the route added
in the compute nodes. In pre 2.1 release, the compute nodes
were added with routes pointing to dev vhost0. From 2.1,
the routes has to be added with gateway option pointing to
the interface address.
Vgw changes done in 2.1 causes the existing livemigration
config to fail during upgrade.
Fix: Modified the provision script for the route change.
Also fixed the vif mac address.
After an upgrade from earlier release to 2.1, the setup_nfs_livem
has to be run again. With the run, the configuration will be
modified to the correct one. Changes done in the vgw vif mac
address and the route on other compute nodes.

Change-Id: I615aca660c1f6eb617397ace3839196eea715d7c