The Dedicated Optical Connection Protection with IP Traffic in WDM Mesh Networks

The optical networks based on WDM (Wavelength Division Multiplex) technology can carry enormous amount of data in each fiber link in the network. The networks with the high capacity links have the drawback that a single failure leads to the loss of a large amount of data. So a protection strategic is critical to protect from faults both service providers and end-users. IP networks carry many types of traffic. Such traffic is web, email, voice, audio and video. In this paper the problem of traffic IP over WDM mesh networks is studied when each IP connection is protected by dedicated optical connection protection. It is also the network performance is presented.