Comment 2 for bug 1582736

Reviewed: https://review.openstack.org/317696
Committed: https://git.openstack.org/cgit/openstack/astara-appliance/commit/?id=fcb3aa8c5b98346eecf4176aa6f2c293604f42ee
Submitter: Jenkins
Branch: stable/kilo

commit fcb3aa8c5b98346eecf4176aa6f2c293604f42ee
Author: Ryan Petrello <email address hidden>
Date: Tue May 17 10:07:49 2016 -0400

    Add additional exception handling to ARP cleanup.

    This was originally resolved in Mitaka via
    http://git.openstack.org/cgit/openstack/astara-appliance/commit/?id=02383adf645c479aba2838602c90fd5135fd0417
    Backporting this as it has the potential to break the router build+configure
    process.

    Closes bug #1582736
    Change-Id: If2ddbf5f2080b29c876e7750ba3b81f15ab3cc08