Self consulting method for data communicationchannel bandwidth

Abstract

This invention provides a self-negotiation method for bandwidths of data communication channels, which carries out default DCC channel collocation to two net cells after connecting them by fibers and makes up of the DCC channel in terms of the same sequence, the T-end of the DCC channel utilizes the default DCC channel to inform the R-end about the negotiation data, which receives the data and gets together with its used cost byte, the intersection got is the cost byte making up of the DCC channel used by net cells of both parties to configure new DCC channels, the two net cells use the new channel to send the DCC channel connection order to the opposite net cell, which sends the connection confirmation order to the opposite net cell then to finish the establishment of the DCC channel to realize the automatic negotiation of DCC bandwidth among net cells.

Description

technical field [0001] The invention relates to network communication technology, in particular to data transmission between network elements, and specifically to a data communication channel (DCC) bandwidth self-negotiation method. Background technique [0002] A major feature of SDH / SONET is that the operation, management, maintenance and configuration (OAM&P) function has a high degree of automation. The network management terminal can issue commands to network elements and query data to complete real-time service deployment and alarm fault location. , Performance online testing and other functions. The relevant data used to manage the OAM&P function is placed at the D1-D12 bytes in the SDH / SONET signal frame, and is transmitted on the network by the SDH / SONET signal. In this way, D1-D12 bytes provide a common data communication channel (DCC) accessible to all network elements, as the physical layer of the embedded control channel (ECC), to transmit operation, management...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of using the default DCC bandwidth is that the communication between network elements can only use D1 to D3 bytes for data transmission. In the case of other unused D bytes, DCC bandwidth resources cannot be effectively used, which affects the Inter-element communication efficiency

[0006] Furthermore, the DCC bandwidth configuration is manually performed on each network element. Since the communication network is usually composed of dozens or even hundreds of network elements, the disadvantage is that it costs a lot of manpower and errors are prone to occur during the manual configuration process. The maintenance cost is too high, and if the DCC bandwidth of a certain network element changes, the DCC bandwidth of other network elements may need to be manually adjusted again

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