Comment 4 for bug 1744032

Reviewed: https://review.openstack.org/550529
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=e2d08409f168aadef9223fae5fedfea27d74623d
Submitter: Zuul
Branch: stable/queens

commit e2d08409f168aadef9223fae5fedfea27d74623d
Author: Claudiu Belu <email address hidden>
Date: Sat Jan 13 17:58:56 2018 -0800

    hyper-v: Logs tips on PortBindingFailed

    When spawning an Hyper-V instance with NICs having the vif_type "hyperv",
    neutron will fail to bind the port to the Hyper-V host if the neutron
    server doesn't have the "hyperv" mechanism driver installed and configured,
    resulting in a PortBindingFailed exception on the nova-compute side.

    When this exception is encountered, the logs will say to check the
    neutron-server logs, but the problem and its solution are not obvious
    or clear, resulting in plenty of questions / reports, all having the
    same solution: is there an L2 agent on the host alive and reporting to
    neutron, and if neutron Hyper-V agent is used, make sure to install
    networking-hyperv and configure neutron-server to use the "hyperv"
    mechanism_driver.

    Change-Id: Idceeb08e1452413e3b10ecd0a65f71d4d82866e0
    Closes-Bug: #1744032
    (cherry picked from commit b80c245ba529ab603910b5c0e2fa466bf0b6a146)