Method and device for allocating channels

Abstract

The embodiment of the present invention discloses a method for allocating channels, which includes: obtaining a set of available routing channels for newly added optical signals between the starting node and the destination node; The nominal filtering cost of the newly added channel after adding the wave to the newly added optical signal; the routing channel corresponding to the nominal filtering cost of the newly added channel that is less than or equal to the preset threshold value for the newly added optical signal Assign routing channels. The embodiment of the invention also discloses a device for allocating channels. By adopting the invention, the problem of severe filtering effect caused by dispersed channel allocation can be solved.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to a method and device for allocating channels. Background technique [0002] In the existing WDM network, after a series of service lights, that is, a series of optical signals carrying service information arrive at a common path node, the service lights that wave down at this node and continue to flow to other nodes will Filter separation at the exit of the node. Each exit will have its own filter window to allow only the service light leaving the node through this exit, that is, the downwave. [0003] In the current channel allocation principle, the channel allocated by a service light has nothing to do with the next destination node of this service light. The destination nodes of the service lights on adjacent channels are generally different, and the service lights of the same destination node may be distributed in different channels at intervals. When the same...

AI Technical Summary

Problems solved by technology

To solve the problem of severe filtering effect caused by scattered channel allocation

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