Comment 7 for bug 1822999

Reviewed: https://review.openstack.org/649623
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=fa5e9c6fabb8e3f2e16646a87ca29c754e7f8c7a
Submitter: Zuul
Branch: master

commit fa5e9c6fabb8e3f2e16646a87ca29c754e7f8c7a
Author: Rodolfo Alonso Hernandez <email address hidden>
Date: Wed Apr 3 14:52:39 2019 +0100

    Format generated MAC addresses using eui48.mac_unix_expanded

    In Ml2Plugin.create_port_bulk, the MAC generated using netaddr.EUI
    have the following format:
      "XX-XX-XX-XX-XX-XX"

    In order to make them more compatible with other systems, the
    following format is more appropiate:
      "00:01:23:45:67:ab"

    eui48.mac_unix_expanded formater will add leading zeros if needed.

    Change-Id: Ice382c0b4738a5a2576a3a4b151059715f106b40
    Closes-Bug: #1822999