Method for implementing automatic grading bandwidth regulation on multi-service transmission platform

Abstract

The invention relates to a method used to achieve automatic classified bandwidth adjustment at multi-service transport platform (MSTP); wherein, each MSTP device monitors the business flow of the device and compares the bandwidth capacity occupied by present flow with the distributed bandwidth capacity; if the capacity is nearly saturated or largely surplus, the device will propose an application to a master for increasing or reducing bandwidth; the master stores all information of broadband use in the whole network; for the request of business passage to reduce bandwidth, the master informs the corresponding MSTP device of releasing partial bandwidth; for the request to increase bandwidth, the master first checks if the surplus bandwidth is distributed or not; if not, the bandwidth will be distributed to the business passage having applied the request; if no bandwidth is left, the device, according to the weight of the business passages, forces the business passage of the lowest weight to release partial bandwidth and distributes the bandwidth to the business passage having applied the request. The invention has an advantage that the method can automatically adjust the business bandwidth capacity without artificial intervention according to present transmission flow rate, thus heightening the utilization ratio of the bandwidth.

Description

technical field [0001] The invention relates to the technical field of optical communication networks, in particular to a method for realizing automatic hierarchical bandwidth adjustment on a multiservice transport platform (MultiserviceTransport Platform, MSTP). Background technique [0002] In recent years, the SDH (Synchronous Digital Hierarchy) transmission network has developed rapidly and has become the communication network with the most investment and the largest scale by telecom operators. However, with the ever-increasing demand for data services from customers, the circuit switching technology based on SDH has been difficult to meet the requirements for carrying huge data traffic. Therefore, GFP (General Framing Procedure), VCAT (Virtual Concatenation) and LCAS ( The next-generation digital synchronization architecture (NG-SDH) featuring link bandwidth adjustment mechanism) technology has become a research hotspot, because it can flexibly allocate bandwidth on a m...

AI Technical Summary

Problems solved by technology

[0005] 1. With a single data transmission path as the object, the bandwidth cannot be allocated from the perspective of the entire network;

[0006] 2. The status of each transmission path is equal, and services with special needs cannot be treated differently

[0007] In addition, it should be pointed out that although the bandwidth adjustment through LCAS does not interrupt the currently running business, packet loss may occur during the adjustment process.

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