A method and system for user port management in aggregation links

Abstract

A method and system for managing user ports in aggregation links are provided in the present invention. With the method and system, the system management ability for service connection is improved, the capability for service connection is ensured, and the network maintenance is easy to be implemented. The method includes: a transmission device of a sending end informs a transmission device of a receiving end about the status information of a failed user port in a virtual concatenation port group of the sending end; the transmission device of the receiving end shuts down the user port in the transmission device of the receiving end which has a service connection with the failed user port, when learning the failed user port in the virtual concatenation port group at the sending end.

Description

Technical field [0001] The present invention relates to the field of optical transmission technology, and in particular to a method and system for user port management in an aggregation link. Background technique [0002] The purpose of the Generic Framing Procedure (GFP) encapsulation protocol is to byte-align the signal from the client and map the variable-length payload data to the byte-synchronized transmission path for transmission. The GFP protocol It is currently one of the main encapsulation protocols used by Ethernet (Ethernet Over SDH, EOS for short; SDH is called Synchronous Digital Hierarchy) equipment in the synchronous digital series. [0003] In the optical transmission process, the GFP protocol provides a mechanism to send a Client Signal Fail (CSF) indication to the receiving end when the sender detects the input signal failure, and the sender sends a client management frame ( The load type is identified as 100b) to transmit the CSF signal, and when the receiving ...

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Problems solved by technology

[0008] The following is the normal process. If the signal failure of user port 1 occurs, according to the GFP protocol, the sending end sends a CSF signal to the receiving end, and the receiving end sends a client signal invalidation statement to the upper layer after receiving it. When port 4 receives the CSF signal, it does not know which port of the sending end has failed. User port 3 and user port 4 continue to send service data. At this time, the service data sent by user port 3 to user port 1 will be lost.

In the prior art, the processing method of some receiving end transmission equipment is to close all the receiving ports connected to the receiving end transmission equipment when receiving CSF. figure 1 In this case, the transmission equipment at the receiving end closes both user ports 3 and 4, and the services of user port 3 and user port 4 will all be interrupted, which directly affects the normal communication with user port 2 and user port 4. business

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