Traffic Grooming in Wdm Networks with Path Protection

For the next generation optical internet to meet the growing traffic needs WDM technology is the key issue to realize high capacity networking infrastructure. In this paper an efficient algorithm is implemented for circuit switching in wide area networks. This algorithm known as semelightpath algorithm has been applied to ARPANET and NSFNET to estimate the blocking probability of a call via fully optical or optoelectronics conversion. Blocking probability has been computed for the above networks. This approach for WDM networks ensures full guaranteed restoration against single link failure on dedicated path protection with and without spare capacity sharing of a network.