Configuring ovs Remotely
- Tracy Yang
Configuring ovsdb Locally
User can check the status of the ovsdb-server process using the ps command from the Linux shell.
admin@PicOS-OVS$ps aux|grep ovs root 3422 0.0 0.1 7020 2788 ? S 10:42 0:00 ovsdb-server /ovs/ovs-vswitchd.conf.db /tmp/inventory.conf.db /ovs/function.conf.db --pidfile --remote=ptcp:6640:127.0.0.1 --remote=punix:/ovs/var/run/openvswitch/db.sock --remote=db:Open_vSwitch,Manager,target root 3435 15.7 1.5 122860 32320 ? Sl 10:42 2:12 ovs-vswitchd --pidfile=ovs-vswitchd.pid --overwrite-pidfile root 3494 0.0 0.2 12960 5752 ? Ss 10:43 0:00 /usr/bin/python /ovs/share/openvswitch/scripts/ovs-invd --pidfile=ovs-invd.pid --overwrite-pidfile --detach --root-prefix=/ovs/ admin 3738 0.0 0.0 2200 684 ttyS0 S+ 10:56 0:00 grep --color=auto ovs admin@PicOS-OVS$
The string '--remote=ptcp:6640:127.0.0.1' in the output above shows that the ovsdb-server is listening the local IP 127.0.0.1 and port 6640.Â
User can configure ovs-vswitchd locally as shown below:
root@PicOS-OVS$ovs-vsctl add-br br0 -- set bridge br0 datapath_type=pica8 root@PicOS-OVS$ovs-vsctl add-port br0 te-1/1/1 vlan_mode=trunk tag=1 -- set interface te-1/1/1 type=pica8 root@PicOS-OVS$ovs-vsctl add-port br0 vxlan1 -- set interface vxlan1 type=pica8_vxlan options:remote_ip=10.10.10.2 options:local_ip=10.10.10.1 options:vlan=1 options:vnid=1122867 options:udp_dst_port=4789 options:src_mac=C8:0A:A9:04:49:1A options:dst_mac=C8:0A:A9:9E:14:A5 options:egress_port=te-1/1/1 root@PicOS-OVS$ovs-vsctl set-controller br0 tcp:10.10.51.51:6633
Configuring ovsdb Remotely
Check the state of ovsdb-server on the switch.
admin@PicOS-OVS$ps aux|grep ovs root 3422 0.0 0.1 7020 2788 ? S 10:42 0:00 ovsdb-server /ovs/ovs-vswitchd.conf.db /tmp/inventory.conf.db /ovs/function.conf.db --pidfile --remote=ptcp:6640:127.0.0.1 --remote=punix:/ovs/var/run/openvswitch/db.sock --remote=db:Open_vSwitch,Manager,target root 3435 14.9 1.5 122860 32388 ? Sl 10:42 3:16 ovs-vswitchd --pidfile=ovs-vswitchd.pid --overwrite-pidfile root 3494 0.0 0.2 12960 5752 ? Ss 10:43 0:00 /usr/bin/python /ovs/share/openvswitch/scripts/ovs-invd --pidfile=ovs-invd.pid --overwrite-pidfile --detach --root-prefix=/ovs/ admin 3835 0.0 0.0 2200 680 ttyS0 S+ 11:04 0:00 grep --color=auto ovs
The string '--remote=db:Open_vSwitch,Manager,target'  in the output above shows that the ovsdb-server is listening remote Manager and target default. User can configure switch ovsdb at remote side.
User can configure ovs-vswitchd remotely as shown below, switch's managerment ip is 10.10.51.138.
root@dev-42:~# ovs-vsctl --db=tcp:10.10.51.138:6640 add-br br0 -- set bridge br0 datapath_type=pica8 root@dev-42:~# ovs-vsctl --db=tcp:10.10.51.138:6640 add-port br0 te-1/1/1 vlan_mode=trunk tag=1 -- set interface te-1/1/1 type=pica8 root@dev-42:~# ovs-vsctl --db=tcp:10.10.51.138:6640 add-port br0 vxlan1 -- set interface vxlan1 type=pica8_vxlan options:remote_ip=10.10.10.2 options:local_ip=10.10.10.1 options:vlan=1 options:vnid=1122867 options:udp_dst_port=4789 options:src_mac=C8:0A:A9:04:49:1A options:dst_mac=C8:0A:A9:9E:14:A5 options:egress_port=te-1/1/1 root@dev-42:~# ovs-vsctl --db=tcp:10.10.51.138:6640 set-controller br0 tcp:10.10.51.51:6633
Add flow locally
User can add flow entry in switch cli.
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admin@PicOS-OVS$ovs-ofctl add-flow br0 in_port=31,actions=output:32 admin@PicOS-OVS$ admin@PicOS-OVS$ovs-ofctl dump-flows br0 OFPST_FLOW reply (OF1.4) (xid=0x2): flow_id=29, cookie=0x0, duration=3.313s, table=0, n_packets=n/a, n_bytes=3481169152, in_port=31 actions=output:32 admin@PicOS-OVS$
Add flow remotely
User can add flow entry at remote side, and must configure controller before, switch's managerment ip is 10.10.51.138.
Switch, admin@PicOS-OVS$ovs-vsctl set-controller br0 ptcp:6633:10.10.51.138 Â Remote server, root@dev-42:~# ovs-ofctl add-flow tcp:10.10.51.138:6633 in_port=32,actions=output:31 root@dev-42:~#
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