jon, please confirm a suspicion of mine. the neutron-private-net-provisioning bp impl added a sock= parameter to the ssh.connect call in remote.py (https://github.com/openstack/savanna/commit/9afb5f60). we currently require paramiko >= 1.8.0, but it looks like the sock param was only added to paramiko 1.9.0 (https://github.com/paramiko/paramiko/commit/31ea4f0734a086f2345aaea57fd6fc1c3ea4a87e) do we need paramiko >= 1.9.0 as our requirement? also, what version are you using in your installation? best, matt