Patent ID: 8824888
Filing Date: 2014-09-02
Classification: H04J

Abstract:
1. A method for negotiating link capability information, wherein after a higher order optical channel data unit (ODU) link is established, the method comprising: receiving, by a second node, first higher order ODU link capability information supported by a first node at one end of the link, where the second node is located at the other end of the link, wherein the first higher order ODU link capability information comprises: a first lower order ODU type and a first tributary slot type which are supported by the first node when multiplexing is performed; determining, by the second node, link capability information according to the first higher order ODU link capability information and second higher order ODU link capability information that is supported by the second node, wherein the second higher order ODU link capability information comprises: a second lower order ODU type and a second tributary slot type which are supported by the second node when multiplexing is performed, the link capability information comprises: a lower order ODU type which is supported by the link when multiplexing is performed and a tributary slot type supported by the link, wherein determining the link capability information comprises: sending, by the second node, the link capability information to the first node.