Hi, I just noticed several number of neutron check (tempest-devstack-vm-neutron-isolated) fails with the same error: "No more IP addresses available on network". This errors suddenly starts to occur from yesterday. I checked there is any commit merge around the time when this failure started, but there is no commit around the time. I am not sure it is a temporary issue. I files a bug in neutron: https://bugs.launchpad.net/neutron/+bug/1243726 It is late in my timezone. I hope someone jumps into this issue. logstash stats is here: http://logstash.openstack.org/index.html#eyJzZWFyY2giOiJcIklwQWRkcmVzc0dlbmVyYXRpb25GYWlsdXJlQ2xpZW50OiBObyBtb3JlIElQIGFkZHJlc3NlcyBhdmFpbGFibGUgb24gbmV0d29yayBcIiIsImZpZWxkcyI6W10sIm9mZnNldCI6MCwidGltZWZyYW1lIjoiNjA0ODAwIiwiZ3JhcGhtb2RlIjoiY291bnQiLCJ0aW1lIjp7InVzZXJfaW50ZXJ2YWwiOjB9LCJzdGFtcCI6MTM4MjUzNzk0OTgxMH0= Thanks, Akihiro