Comment 14 for bug 1965297

impish-proposed verified using [Test Plan] and had the following output:

neutron-common:
  Installed: 2:19.3.0-0ubuntu2
  Candidate: 2:19.3.0-0ubuntu2
  Version table:
 *** 2:19.3.0-0ubuntu2 500
        500 http://archive.ubuntu.com/ubuntu impish-proposed/main amd64 Packages
        100 /var/lib/dpkg/status
     2:19.1.0-0ubuntu2 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu impish-updates/main amd64 Packages
     2:19.0.0-0ubuntu1 500
        500 http://nova.clouds.archive.ubuntu.com/ubuntu impish/main amd64 Packages

$ juju run -a neutron-gateway -- ip netns exec qrouter-e75d9cbe-fe7a-4ef4-a8d1-f676229c48d1 ip link show| grep qg-9a27c097-0e
    4: qg-9a27c097-0e@if13: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    4: qg-9a27c097-0e@if13: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000
    4: qg-9a27c097-0e@if14: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP mode DEFAULT group default qlen 1000