Comment 5 for bug 1526403

Reviewed: https://review.openstack.org/206232
Committed: https://git.openstack.org/cgit/openstack/ironic/commit/?id=1740ab79708fa6578db7bf4c607ab046b7fc215d
Submitter: Jenkins
Branch: master

commit 1740ab79708fa6578db7bf4c607ab046b7fc215d
Author: Om Kumar <email address hidden>
Date: Tue Oct 13 19:46:15 2015 +0530

    Add portgroups to support LAG interfaces - DB

    Ironic should be able to provide the requisite connectivity
    information to the Neutron ML2 plugin to allow drivers to
    provision the top-of-rack switch for the bare metal server.
    The addition of portgroups in Ironic allows the concept of
    link aggregation to be handled in Ironic in order to provide
    support for cases where multiple interfaces on the bare metal
    server connect to switch ports of a single LAG.

    This commit includes changes to:
    - the DB models (extension of port model and addition of portgroup
      model)
    - the DB tests

    Partial-bug: #1526403
    DocImpact
    Co-Authored-By: Laura Moore (<email address hidden>)
    Co-Authored-By: Jenny Moorehead (<email address hidden>)
    Co-Authored-By: Will Stevenson (<email address hidden>)

    Change-Id: Ic028c316b0670c2d18de89111e83069f3441f476