Hi, The get_all_bw_counters() virt driver [1] is only supported by xenapi today. However Matt raised the question [2] if this is a nova-network only feature. As in that case we can simply remove it. Cheers, gibi [1] https://github.com/openstack/nova/blob/68afe71e26e60a3e4ad30083cc244c57540d4da9/nova/virt/xenapi/driver.py#L383 [2] https://review.openstack.org/#/c/403660/78/nova/compute/manager.py@6855