Nexus Driver replay Scaling Changes

[Carol Bouchard]

Changes to reduce Nexus configuration replay

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/238206

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/242175

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/238206
Committed: https://git.openstack.org/cgit/openstack/networking-cisco/commit/?id=6df65927938b27e014042e4bebb3381a02ec19b5
Submitter: Jenkins
Branch: master

commit 6df65927938b27e014042e4bebb3381a02ec19b5
Author: Carol Bouchard <email address hidden>
Date: Wed Oct 21 14:33:37 2015 -0400

    Nexus Driver replay scaling improvements

    Code improvement which reduces restore time of 6800 ports entries
    from 4 hours to 11 minutes. Restore changes include:
    * Initialize all nexus interfaces identified in ini file with trunk none
      if not already specified.
    * Eliminate vlan name. Instead just create all the vlan based on
      port binding configuration.
    * configure multiple VLANs per interfaces
    Event transactions changes include:
    * No longer send create vlan transactions except for VXLAN segments
    * collect interface transactions and send in a batch

    There exists a second review to resolve remaining unit tests.
    WIP review is https://review.openstack.org/242175
    Manual testing of VLAN, VXLAN with replay and no replay has been
    performed. This includes create/delete of subnets with DHCP enabled
    which applies configuration to two switches with port channels. Replay
    configuration of course was verified when enabled.

    Change-Id: I765efcc7d3a768fa68f84f80b66bf6406b455f4d
    Closes-bug: #1508525

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/242175
Committed: https://git.openstack.org/cgit/openstack/networking-cisco/commit/?id=41c57a9fb6ad318e36ed50a3f2e246ece139ff42
Submitter: Jenkins
Branch: master

commit 41c57a9fb6ad318e36ed50a3f2e246ece139ff42
Author: Carol Bouchard <email address hidden>
Date: Thu Nov 5 12:48:00 2015 -0500

    Continue update unit tests with new Nexus output

    This review is second part to 1508525. Part 1 can be found at
    https://review.openstack.org/#/c/238206/
    which addresses scaling issues anxiously needed by test team.
    Part 2 continues updating unit tests with new Nexus output.

    Change-Id: I488c0bf41f02273782d10ce5eedf0163f5c98eca
    Closes-bug: #1508525

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/kilo
Review: https://review.openstack.org/253185

[OpenStack Infra (hudson-openstack)]

Change abandoned by Carol Bouchard (<email address hidden>) on branch: stable/kilo
Review: https://review.openstack.org/253185
Reason: After more discussion with my manager, we've decided to abandon this cherry-pick. Thank you for your comments.