Hi all,
I have noticed that OVS support multiple tunneling protocols, such as, GRE,
VXLAN, etc. I am not sure if the MPLS has been also supported now (could not
find it ...). Since the openflow protocol has support the corresponding actions
of MPLS, such as, push_mpls, pop_mpls. I have try to test it.
The topology is h1-s1-s2-h2
root@ubuntu-14:~/test-ovs# ovs-vsctl show
49c4a7af-3a27-4ef1-8dc3-f1f90d5c19ce
Bridge "s2"
Port "s2"
Interface "s2"
type: internal
Port "s2-eth1"
Interface "s2-eth1"
Port "s2-eth2"
Interface "s2-eth2"
Bridge "s1"
Port "s1-eth2"
Interface "s1-eth2"
Port "s1-eth1"
Interface "s1-eth1"
Port "s1"
Interface "s1"
type: internal
ovs_version: "2.0.1"
The ip address of h1 is 10.0.0.1/24, and the ip address of h2 is 10.0.0.2/24.
The flow-table is as below.
root@ubuntu-14:~/test-ovs# ovs-ofctl dump-flows s1
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=37.61s, table=0, n_packets=0, n_bytes=0, idle_age=37,
in_port=1 actions=push_mpls:0x8847,load:0x1->OXM_OF_MPLS_LABEL[],output:2
cookie=0x0, duration=15.517s, table=0, n_packets=0, n_bytes=0, idle_age=15,
in_port=2 actions=output:1
cookie=0x0, duration=52.027s, table=0, n_packets=0, n_bytes=0, idle_age=52,
priority=0 actions=NORMAL
root@ubuntu-14:~/test-ovs# ovs-ofctl dump-flows s2
NXST_FLOW reply (xid=0x4):
cookie=0x0, duration=9.759s, table=0, n_packets=0, n_bytes=0, idle_age=9,
in_port=1 actions=output:2
cookie=0x0, duration=37.555s, table=0, n_packets=0, n_bytes=0, idle_age=37,
in_port=2 actions=pop_mpls:0x0800,output:1
cookie=0x0, duration=57.217s, table=0, n_packets=0, n_bytes=0, idle_age=57,
priority=0 actions=NORMAL
But the ping package from h1 to h2 is unreachable.
If I configure something wrong, or the ovs could not support mpls? Look
forwarding to your answer. Thanks.
Best Regards,
Yali
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