Comment 10 for bug 1818118

Adding logs from latest nova regressions on 2+3 system wolfpass3-7 with 20190727T013000Z load.
We have about 9 out of 60 ping failures after live-migrations.

1st failure:
[2019-07-28 01:36:59,804] 301 DEBUG MainThread ssh.send :: Send 'nova --os-username 'admin' --os-password 'Li69nux*' --os-project-name admin --os-auth-url http://keystone.openstack.svc.cluster.local/v3 --os-user-domain-name Default --os-project-domain-name Default --os-endpoint-type internalURL --os-region-name RegionOne live-migration 0b9a3e2a-a3f7-49f0-9fc4-411bd0da8f66'

[2019-07-28 01:40:43,773] 301 DEBUG MainThread ssh.send :: Send 'ping -c 3 192.168.85.67'
PING 192.168.85.67 (192.168.85.67) 56(84) bytes of data.

--- 192.168.85.67 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2015ms

last failure:
[2019-07-28 17:57:00,609] 301 DEBUG MainThread ssh.send :: Send 'nova --os-username 'admin' --os-password 'Li69nux*' --os-project-name admin --os-auth-url http://keystone.openstack.svc.cluster.local/v3 --os-user-domain-name Default --os-project-domain-name Default --os-endpoint-type internalURL --os-region-name RegionOne live-migration 977d71b8-dff6-4dd5-a6b1-f75ec7ae1ddf'

[2019-07-28 18:00:32,098] 301 DEBUG MainThread ssh.send :: Send 'ping -c 3 192.168.85.74'
PING 192.168.85.74 (192.168.85.74) 56(84) bytes of data.

--- 192.168.85.74 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2000ms