Network Recovery: Protection and Restoration of Optical, SONET-SDH, IP, and MPLS
Network Recovery: Protection and Restoration of Optical, SONET-SDH, IP, and MPLS
On the efficiency of BGP-TE extensions for GMPLS multi-domain routing
ONDM'09 Proceedings of the 13th international conference on Optical Network Design and Modeling
R-BGP: staying connected In a connected world
NSDI'07 Proceedings of the 4th USENIX conference on Networked systems design & implementation
Routing protocol extension for resilient GMPLS multi-domain networks
WSEAS TRANSACTIONS on COMMUNICATIONS
Restoration in multi-domain GMPLS-based networks
Computer Communications
| Hi-index | 0.00 |
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.