Comment 3 for bug 1582736

Reviewed: https://review.openstack.org/317490
Committed: https://git.openstack.org/cgit/openstack/astara-appliance/commit/?id=9d18b7e065b6be94c4428d768308d61924d86094
Submitter: Jenkins
Branch: stable/liberty

commit 9d18b7e065b6be94c4428d768308d61924d86094
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: I630007e3fb9c33e0cac11ab39b95ba63434ed059