Multi-frame interconnecting system and inter-frame data transmission method

Abstract

The invention relates to a data transmission method between frames, which is realized based on a multi-frame interconnecting system. The system comprises a center exchange frame and a plurality of sub frames, wherein the center exchange frame comprises a master convergence mesh and a spare convergence mesh, and each of the sub frames comprises a master exchange mesh and a spare exchange mesh, the center exchange frame and the sub frames can realize the parallel interconnection through interconnecting chains among master frames and spare frames, and the master convergence mesh and the spare convergence mesh are connected through master and spare interconnecting links. The data transmission method between the master convergence mesh and one sub frame comprises conducting the data transmission between frames between the master convergence mesh and the sub frame through interconnecting links between master frames, occurring faults in the interconnecting links between the master frames, and conducting the link switching by the master convergence mesh to make the master convergence mesh and the sub frame conduct the data transmission between frames through a channel formed by the master and spare interconnecting links and the interconnecting links between the spare frames. The method and the system of the invention can avoid the association reverse.

Description

technical field [0001] The invention relates to the technical field of network communication, and mainly describes a multi-frame interconnection system and a method for interconnecting data transmission between the multi-frames. Background technique [0002] Existing communication equipment is usually composed of multiple frames, and the multi-frames generally adopt a star connection mode, that is, a central switching frame is used as the data master exchange and convergence node of the communication system, and other frames are slave frames. The frames are connected through the inter-frame interconnection data link and the central switching frame is connected to realize the data frame transmission. [0003] In the early star multi-chassis interconnection system, a complete chassis is generally used to complete the inter-chassis interconnection function. This method is a chassis-level implementation method, such as figure 1 As shown, a pair of active and standby central swi...

AI Technical Summary

Problems solved by technology

[0007] 1. A failure of a single link between chassis will cause active / standby switchover of the SFUs of all chassis, resulting in association switching

[0008] 2. Unable to solve the crossover failure of the switching network board or the link between the frames

[0009] 3. Since the switchover involves the switchover of the switching plane, the software needs to be supported by a special protocol, and the switchover takes a long time

[0013] The utilization rate of inter-chassis interconnection links is low. To complete the interconnection with a slave sub-chassis, 4 interconnection links are required, but only one is a working link, and the other 3 are in standby state, resulting in waste of resources and high implementation costs.

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