Multi protocol label switching recovery mechanism

A circuit switched computer can be used to send real time data like voice and video from sender to receiver. In case if a link on the path fails then data cannot be sent along the path. However circuit switching is resilient to such failures. These packets are treated individually in the network. If failure occurs in the network path then packets can be rerouted to avoid the failures and communication will not be interrupted. In this paper, we analyze the different approaches of traffic rerouting in MPLS domain that are resilient to the failure. We propose a new model Assured-Quality-of-Service (ASQ) an improved mechanism such that traffic demand can be rerouted in the network as fast as possible. Our approach helps to achieve a fast reroute of traffic on path failure, as compared to existing recovery models. Further, our approach requires less number of nodes on the backup path as compared to recovery models proposed by Makam´s or Haskin.