In this paper we propose an enhancement of the BGP protocol for obtaining AS-disjoint paths in GMPLS multi-domain networks. We evaluate the benefits of having AS-disjoint paths under single inter-domain link failure for two main applications: routing of future connection requests during routing protocol re-convergence and applying multi-domain restoration as survivability mechanism in case of a single link failure. The proposed BGP modification is a simple and effective solution for disjoint path selection in connection-oriented multi-domain networks. Our results show that applying the proper failure notification method combined with our proposal reduces the blocking of new connection requests under protocol re-convergence. Furthermore. we show that our proposal is a valuable complementary process for increasing the network resilience.
|Title of host publication||Cisst'10: Proceedings of the 4th Wseas International Conference on Circuits, Systems, Signal and Telecommunications|
|Place of Publication||Athens|
|Publication status||Published - 2009|
|Event||4th WSEAS International Conference on Circuits, Systems, Signals and Telecommunications - Cambridge, United States|
Duration: 27 Jan 2010 → 29 Jan 2010
Conference number: 4
|Conference||4th WSEAS International Conference on Circuits, Systems, Signals and Telecommunications|
|Period||27/01/2010 → 29/01/2010|
Manolova, A. V., Romeral, S., & Ruepp, S. R. (2009). Enhancing network performance under single link failure with AS-disjoint BGP extension: [recipient of Best Paper Award]. In Cisst'10: Proceedings of the 4th Wseas International Conference on Circuits, Systems, Signal and Telecommunications World Scientific.