Multicast protection method in WDM optical network

Abstract

The invention provides a multicasting protection method in a WDM optical network, which comprises the steps that: A. the working path starting from a source node to a destination node is obtained; B. the protection path to which the working path corresponds is obtained; and C. step A and step B are followed again till the working paths starting from the source node to all the destination nodes and the corresponding protection paths are obtained. In the invention, the protection path to which the working path corresponds is obtained immediately after each working path is obtained, thus avoiding the condition that all the working paths first construct a working tree with occupying more network resources and thus the protection tree can not be successfully constructed from occurring. Therefore, the adoption of the invention can lower the probability of the network congestion.

Description

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AI Technical Summary

Benefits of technology

This new method allows for efficient use of available bandwidth between different networks while still maintaining effective communication capabilities without overloading any other parts or components that might have been affected negatively during operation.

Problems solved by technology

This patented problem addressed in this patents relates to improving the efficiency and reliability of establishing connections among components within a wireless communications system such as mobile phone networks. While traditional methods like SONET (Simultaneous Overall, these techniques aim towards reducing connectivity failure caused by faults in component functioning during operation.

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