Method for managing data communication channel of synchronizing digital hierarchy equipment

Abstract

The invention provides a method for managing data communication channels of synchronous digital system equipment, which comprises: step S102, namely, binding a plurality of data communication channels between two neighboring network elements into an inserting control channel, respectively arranging communication channels namely master control channels which are used for sending data for the two neighboring network elements on one of a plurality of data communication channels of the inserting control channel, and noticing an upper layer protocol that the inserting control channel is normal, step S104, namely, selecting another new master control channel for the network element which is corresponded with the master control channel which goes wrong from a plurality of the data communication channels when the master control channel which is corresponded with one of the two neighboring network elements, noticing the superjacent bed protocol that the inserting control channel is unavailableif a normal data communication channel is not existed in a plurality of data communication channels, thereby the managing communication network topological complexity is simplified when SDH(SONET) equipment is combined into the network, and the survivability of a data communication network is increased.

Description

technical field [0001] The invention relates to a management method for managing a communication channel (DCC) in a transmission system Synchronous Digital Hierarchy (SDH), Synchronous Optical Communication Foundation (SONET), and Data Cross Connect (DXC) equipment. Background technique [0002] Standard SDH, SONET, and DXC equipment all meet the basic requirements of ITU-T for in-band management bandwidth of equipment. That is, the standard network management information occupies D1-D3 bytes in the standard SDH (SONET) frame, and the bandwidth is 176Kb / s. [0003] In the current situation, when large-capacity, multi-optical port equipment is used to organize a large-scale network, due to the large equipment capacity and many optical interfaces, there will usually be multiple pairs of optical fiber connections between adjacent network elements, such as figure 1 As shown, selection must be made when management information is exchanged through these data communication channel...

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Problems solved by technology

[0004] From the above process, it is not difficult to see that the current traditional method will make the network topology complex, which will lead to the diffusion of routing information and the complexity of routing calculations. In addition, because the data communication channels are independent of each other, the survivability of the ECC channel is not good. high, if present as figure 2 In the multiple faults shown, even if there is an available DCC channel, data communication cannot be performed between adjacent network elements

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