Patent ID: 8462795

Claim:
A method for transmitting a control message based on a multi-ring Ethernet, the method comprising: controlling control virtual local area networks of a main ring and a sub-ring, wherein the multi-ring Ethernet comprises the main ring having a plurality of main ring nodes and the sub-ring having a plurality of sub-ring nodes, the plurality of main ring nodes include a main ring control node, and the plurality of sub-ring nodes include a sub-ring control node; receiving, at a main ring node, a sub-ring control message from the sub-ring; forwarding the sub-ring control message to other main ring nodes on the main ring via a data plane, and synchronously realizing blocking or opening of the sub-ring control message and a data message in the data plane; configuring the control virtual local area network of the main ring in the main ring, and configuring the control virtual local area network of the sub-ring in the sub-ring and/or a virtual channel located between interconnection nodes of the main ring and provided for a sub-ring protocol message, wherein the interconnection nodes are common nodes between the main ring and the sub-ring; wherein the step of configuring the control virtual local area networks of the main ring and the sub-ring further comprises: configuring the control virtual local area network of the main ring, involving all ports on the main ring; and configuring the control virtual local area network of the sub-ring, involving all ports on the sub-ring and the main ring, and wherein after configuring the control virtual local area networks of the main ring and the sub-ring, the method further comprising: determining whether all the links of the main ring are normal.