In the dynamic environment, in order to enhance network resource utilization and reduce network congestion rate, it’s very important to design a good tactic about routing and bandwidth assignment in path protection.With optical network programme chi flat iron and optimization software“Unitrans ZXTOP 500”which the author polo shirts participated in, the article studys dynamic routing and wavelength assignment algorithm based on WDM optical network survivability, and put forward a new algorithm based on part of wavelength conversion. First of all, the algorithm confirms several alternate routings according to requirement and sorts them chi flat iron with the sequence; then, it acquires the collection of all available wavelengths according to the wavelength assignment scheme in the algorithm, and gets the assignment result by selecting the collection of the least wavelength conversion times. At last, the simulation tests verified the performance of the algorithm.Furthermore, because of fast chi hair straighteners recovery and easy operation, protect mechanism based on SRLG restriction has become the effective mechanism to solve network survivability, and the article also mentions a new algorithm based on dynamic mixed shared paths in SRLG restriction in network survivability (cheap ralph lauren polo shirts). This algorithm is a new dynamic traffic assignment algorithm based on SRLG; it avoids traps in SRLG effectively by using many protect paths and enhance resource utilization by sharing all resources. Even though traps emerge, it’s able to restore effectively. At last, the simulation data analysis proved this algorithm is superior to others in resource utilization and traffic congestion.
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