Comment 1 for bug 1816449

Reviewed: https://review.opendev.org/645483
Committed: https://git.openstack.org/cgit/openstack/networking-ovn/commit/?id=1daffa9634a813ccbcf00a4c4c9dbd2c504d326d
Submitter: Zuul
Branch: master

commit 1daffa9634a813ccbcf00a4c4c9dbd2c504d326d
Author: Kamil Sambor <email address hidden>
Date: Fri Mar 22 07:53:47 2019 +0100

    Propagate mtu to all subnets

    In networking-ovn we map subnets to OVN DHCP_Options
    rows (where we store the MTU), but from neutron API perspective,
    the MTU is applied per network. So we need update all subnets
    thats belong to network to propagade correctly MTU for network.

    Closes-Bug: #1816449
    Change-Id: Ieddc16e607bccef84316f9ee908e884539c7ed39