Fast reroute with pre-established bypass tunnel in MPLS
Computer Communications
Link repair in managed multi-domain connections with end-to-end quality guarantees
International Journal of Network Management
| Hi-index | 0.01 |
This paper solves the problem of path selection for connection-oriented MPLS-based mesh networks with a special focus on implementation issues in middle-sized networks, such as Metropolitan-Area Networks (MANs). A novel network planning algorithm, called Capacity-Balanced Alternate Routing (C-BAR), is proposed. For C-BAR, alternate paths between each ingress-egress pair are defined at a network planning stage according to thenetwork topology and potential traffic load and location of each ingress-egress pair so that load-balancing can be achieved in routing label switched paths (LSPs). Both analytical and simulation-based studies have been conducted to examine the proposed approach. The results show that the C-BAR algorithm can significantly improve the performance in blocking probability by spreading potential traffic to the whole network compared with the other reported connection-oriented routing schemes.