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Volume 29 Issue 5
Jan.  2011
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Tang Zhi-guo, Li Le-min, Yu Hong-fang. Link Criticality Routing Algorithm for MPLS Traffic Engineering[J]. Journal of Electronics & Information Technology, 2007, 29(5): 1187-1190. doi: 10.3724/SP.J.1146.2005.01240
Citation: Tang Zhi-guo, Li Le-min, Yu Hong-fang. Link Criticality Routing Algorithm for MPLS Traffic Engineering[J]. Journal of Electronics & Information Technology, 2007, 29(5): 1187-1190. doi: 10.3724/SP.J.1146.2005.01240

Link Criticality Routing Algorithm for MPLS Traffic Engineering

doi: 10.3724/SP.J.1146.2005.01240
  • Received Date: 2005-09-30
  • Rev Recd Date: 2006-03-13
  • Publish Date: 2007-05-19
  • Link Criticality Routing Algorithm (LCRA) is presented for Multi-Protocol Label Switch (MPLS) traffic engineering. It defines the link weight and chooses a path for a Label Switch Path set-up request through defining the average expectation load of links and determining the criticality of links. The main objective of LCRA is to swiftly set up paths as many as possible with bandwidth guaranteed, and make these paths go through evenly the network. Simulation shows the algorithm is better than other algorithms in reject ratio of the traffic requests and performance of rerouting the traffic requests when a link is failure, especially in computing time cost.
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  • Guerin R, Orda A, and Williams D. QoS routing mechanisms and OSPF extensions[J].proc. of IEEE GLOBECOM97, phoenix, AZ, Nov.1997, Vol.3:1903-1908[2]Kodialam M S and Lakshman T V. Minimum interference routing with applications to MPLS traffic engineering. Proc. of IEEE INFOCOM, 2000, Vol.2: 884-893.[3]Suri Subhash, Waldvogel Marcel, Bauer Daniel, and Warkhede Priyank Ramesh. Profile-based routing and traffic engineering[J].Computer Communications.2003, 26(4):351-365[4]Gopalan Kartik, Chiueh Tzi-cker, and Lin Yow-jian. Load balancing routing algorithm with bandwidth-delay guarantees. IEEE Communications Magazine, 2004, 42(6): 108-113.[5]Katz D, Yeung D, and Kompella K. Traffic engineering extensions to OSPF. Work in progress, Internet Draft, draft-katz-yeung-ospf-traffic-05.txt, 2001.Li T and Smit H. IS-IS extensions for traffic engineering. Work in progress, Internet Draft, draft-ietf-isis-traffic-04.txt, 2001.[6]Berger L. GMPLS signaling resource reservation protocol traffic engineering (RSVP-TE) extensions. IETF RFC3473, Jan. 2003.[7]Smith P Ashwood and Berger L. GMPLS signaling constraint based routed label distribution protocol (CR-LDP) extensions. IETF RFC3472, Jan. 2003.[8]Zegura E W, Calvert K L, and Bhattacharjee S. How to model an internetwork. Proc. of IEEE INFOCOM, 1996, 2: 594-602.
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