MPLS/IP analysis and simulation for the implementation of path restoration schemes
V. Alarcón-Aquino, Y. L. Takahashi-Iturriaga, J. C. Martínez-Suárez, L.G. Guerrero-Ojeda · 2004
Abstract: IP (Internet Protocol) has been traditionally routed over ATM (Asynchronous Transfer Mode) via Virtual Circuits (VCs) or Multi-Protocol over ATM (MPOA). These methods proved to have a complicated operation mode; therefore, the necessity for a simpler method is required. All these necessities can be supported by the Multi-Protocol Label Switching (MPLS) since it integrates the most important characteristics of layers 2 and 3 of the OSI model. This paper explains and analyzes the concepts of MPLS, as well as performing a simulation and comparison of path restoration schemes using the network simulator, NS. The results show the advantages of working over a connection-oriented technology (MPLS) by supporting a more efficient rerouting scheme for link failures. Key-Words: IP, MPLS, ATM, network simulator, path restoration schemes, path protection schemes. 1