Comment 7 for bug 1501086

Reviewed: https://review.openstack.org/238989
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=0cc889f3185a2e8fe3fef45190e4fb457ce40150
Submitter: Jenkins
Branch: stable/liberty

commit 0cc889f3185a2e8fe3fef45190e4fb457ce40150
Author: Swaminathan Vasudevan <email address hidden>
Date: Mon Sep 28 11:43:03 2015 -0700

    Cache the ARP entries in L3 Agent for DVR

    There seems to be a timing issue between the
    ARP entries that arrive from the server to
    the agent and the internal qr-device getting
    created by the agent.
    So those unsuccessful arp entries are dropped.

    This patch makes sure that the early ARP entries
    are cached in the agent and then utilized when
    the internal device is up.

    Closes-Bug: #1501086
    Change-Id: I9ec5412f14808de73e8dd86e3d51593946d312a0
    (cherry picked from commit d9fb3a66b4aead65fac2df08a5f34538e7af4d7b)