The International Journal of Innovative Research in Computer and Communication Engineering
Increasing demand of complex and data demanding Internet services has negatively affected the quality of service of data transfers in the network. Multi-Protocol Label Switching (MPLS) is an architecture developed to combine the dynamic nature of IP routing protocols and the efficiency of label switching. A significant issue in now-a-days networks is the support of real-time services or multimedia applications even in the presence of node or link failures. MPLS employs basic techniques for network protection from such failures: protection switching where a pre-computed alternative path (usually disjoint from the working path) is set up for every flow, and rerouting where an alternative path is dynamically recomputed after a fault is detected.