Короче, когда появляется интерфейс, он почему-то не появляется в openflow. В чём проблема:
root@ne-vlezay80:/home/ne-vlezay80# ovs-vsctl show
156b1687-3b19-432d-95e1-3e309141f1a0
Bridge "servers0"
Port "router0"
Interface "router0"
Port "servers0"
Interface "servers0"
type: internal
Bridge "clients0"
Port "clients0"
Interface "clients0"
type: internal
Port "router1"
Interface "router1"
ovs_version: "2.3.0"
root@ne-vlezay80:/home/ne-vlezay80# ovs-ofctl show clients0
OFPT_FEATURES_REPLY (xid=0x2): dpid:00007e5eb4927447
n_tables:254, n_buffers:256
capabilities: FLOW_STATS TABLE_STATS PORT_STATS QUEUE_STATS ARP_MATCH_IP
actions: OUTPUT SET_VLAN_VID SET_VLAN_PCP STRIP_VLAN SET_DL_SRC SET_DL_DST SET_NW_SRC SET_NW_DST SET_NW_TOS SET_TP_SRC SET_TP_DST ENQUEUE
LOCAL(clients0): addr:7e:5e:b4:92:74:47
config: PORT_DOWN
state: LINK_DOWN
speed: 0 Mbps now, 0 Mbps max
OFPT_GET_CONFIG_REPLY (xid=0x4): frags=normal miss_send_len=0
root@ne-vlezay80:/home/ne-vlezay80# ovs-vsctl --version
ovs-vsctl (Open vSwitch) 2.3.0
Compiled Mar 28 2016 10:30:32
DB Schema 7.6.0