| 摘要 |
Provided in an embodiment of the present invention are an information transmission method, device and communication system, the information transmission method comprising: a controller transmits a forwarding instruction to a transponder, the forwarding instruction comprising at least two routing association relationships and a tunnel association relationship, the at least two routing association relationships comprising a first routing association relationship and a second routing association relationship, the first routing association relationship being the mapping of a first route to a next hop identifier, the second routing association relationship being the mapping of a second route to the next hop identifier, the first route being different from the second route, and the tunnel association relationship being the association relationship between the next hop identifier and a public network tunnel. The embodiment of the present invention solves the problem that the OpenFlow standard of an SDN dos not specify an issuing form for the forwarding instruction from a control plane to a forwarding plane. |
