An efficient and flexible MPLS signaling framework for mobile networks

Abstract

Multiprotocol Label Switching (MPLS) has gained momentum in recent years as an effective tool to provide Quality of Service (QoS) in a variety of networks. This has in turn created active interest in the area of recovery in MPLS based networks. A number of recovery schemes for MPLS domains have been proposed in recent years. However, the current schemes lack support for recovery in dynamic network topologies. In this paper, a new flexible signaling protocol for LSP rerouting in dynamic network environments is introduced. The signaling protocol recovers from node and link failures reactively, taking a local approach to LSP reestablishment. The performance of the signaling protocol is evaluated through simulations. Results indicate that the protocol can effectively and efficiently handle rerouting in dynamic networks with a low protocol signaling overhead as compared to contemporary MPLS rerouting protocols. This would enable the MPLS based IP-QoS support mechanisms to extend to dynamic network topologies.

Scalability Dynamic Multicast Labels Management Mechanism for Ubiquitous Data-Centric Sensor Networks

“…Scalability can be evaluated not only in terms of the overhead growth in the presence of a large number of groups but also by the number of participants per group and by groups for which the set of participants changes often over time. Overhead can be measured in terms of memory resources (in routers) as they relate to routing states maintained per group and can be measured also by bandwidth resources in terms of control or signaling messages per group and also by processing power [19].…”