Research on Survivability of Optical Transmission Network Based on WDM

This paper studies the survival performance of WDM optical networks based on wavelength routing. In order to reduce cost and make full use of finite resource of WDM optical networks, a survival scheme of WDM optical network based on self-healing ring in combination with mesh network is put forward. The scheme can dynamically allocate networks(optical fiber and wavelength resource according to concrete situation of network traffic and failure, and enhance flexibility and survivability of WDM OTN, which satisfies different user service for real time demand of survival performance.