Comment 9 for bug 1841189

again ping failure after live migration from compute-2 to compute-0 ~16:01
instance id fb8e41e1-d51b-4bec-b139-47be706f96f7

[2019-08-23 16:01:27,880] 1913 INFO MainThread vm_helper._ping_vms:: Ping successful from 128.224.186.181: {'192.168.104.84': 33}

[2019-08-23 16:01:32,886] 164 INFO MainThread test_migrate.test_migrate_stress:: Live migration iter25

[2019-08-23 16:01:37,288] 1288 INFO MainThread vm_helper.live_migrate_vm:: Live migrating VM fb8e41e1-d51b-4bec-b139-47be706f96f7 from compute-2 started.
[2019-08-23 16:01:37,288] 1289 INFO MainThread vm_helper.live_migrate_vm:: nova live-migration fb8e41e1-d51b-4bec-b139-47be706f96f7

[2019-08-23 16:01:39,265] 1300 INFO MainThread vm_helper.live_migrate_vm:: Waiting for VM status change to MIGRATING with best effort

[2019-08-23 16:01:41,791] 1761 INFO MainThread vm_helper.wait_for_vm_status:: VM status has reached MIGRATING
[2019-08-23 16:01:41,791] 1309 INFO MainThread vm_helper.live_migrate_vm:: Waiting for VM status change to original state ACTIVE

[2019-08-23 16:02:14,911] 1316 INFO MainThread vm_helper.live_migrate_vm:: Live migrate vm fb8e41e1-d51b-4bec-b139-47be706f96f7 completed

[2019-08-23 16:02:17,058] 1368 INFO MainThread vm_helper.live_migrate_vm:: VM fb8e41e1-d51b-4bec-b139-47be706f96f7 successfully migrated from compute-2 to compute-0
[2019-08-23 16:02:17,058] 1419 INFO MainThread ssh.get_natbox_client:: Getting NatBox Client...

[2019-08-23 16:02:19,825] 1666 INFO MainThread network_helper._get_net_ips_for_vms:: IPs dict: {'fb8e41e1-d51b-4bec-b139-47be706f96f7': ['192.168.104.84']}
[2019-08-23 16:02:19,826] 2525 INFO MainThread network_helper.ping_server:: Ping 192.168.104.84 from host 128.224.186.181

[2019-08-23 16:02:32,031] 2563 INFO MainThread network_helper.ping_server:: retry in 3 seconds

[2019-08-23 16:02:35,034] 2567 WARNING MainThread network_helper.ping_server:: Ping from 128.224.186.181 to 192.168.104.84 failed.
[2019-08-23 16:02:35,035] 1926 INFO MainThread vm_helper._ping_vms:: Ping unsuccessful from vm (logged in via 128.224.186.181): {'192.168.104.84': 100}
[2019-08-23 16:02:35,035] 1419 INFO MainThread ssh.get_natbox_client:: Getting NatBox Client...