Method and system for optimizing loop formation of access layer devices based on packet transport network ptn

Abstract

The invention relates to a method and system for optimizing looping of access layer equipment based on a packet transmission network PTN. The method includes: obtaining network resource information of the PTN networking; judging whether there is an optical fiber connection between each network element on the i-th long chain and each network element on the ring where the i-th long chain is located; if there is, Calculate the gain g of the fiber mn ; When the gain of each fiber is non-positive, or when there is no fiber, add a fiber between the network element of the i-th long chain and the network element of the ring where the i-th long chain is located; according to the added fiber, the The services of the first network element and the second network element through the i-th long chain are switched; when the gains of all fibers are not all non-positive values, according to the gain of each fiber, the ith long chain and the i-th long chain The optical fiber services between the network elements in the ring where the chain is located are switched; the optical fiber services between each long chain and the network elements in the ring where the long chain is located are switched in turn, and the access layer equipment of the PTN network is completed. optimization. The invention can improve the loop forming rate and improve the network security.

Description

technical field [0001] The invention relates to the field of packet transmission network optimization, in particular to a method and system for optimizing looping of access layer equipment based on a packet transmission network PTN. Background technique [0002] With the popularization of smart terminals, human society has entered the era of mobile Internet, so that large-capacity information can be transmitted, and the transmission of information is inseparable from the transmission channel of information - the bearer network. The bearer network is a private network built by each operator to carry various voice and data services, usually using optical fiber as the transmission medium. [0003] At this stage, PTN networking has been introduced into the bearer network, and the existing PTN adopts a three-layer network structure, including: access layer, aggregation layer, and core layer. During network operation, whether a device forms a loop has a great impact on network st...

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Problems solved by technology

[0004] During the PTN networking configuration process, most of the access layer devices will form a loop. The ring formation condition is to make it have at least two completely non-repeated paths, and finally connect to the aggregation layer device, but there will still be a small number of access layer devices. There is no loop, which will affect a large number of businesses when the network is turbulent

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