Path Selection Techniques to Establish Constrained Interdomain MPLS LSPs


MultiProtocol Label Switching (MPLS) is used today inside most large Service Provider (SP) networks. In this paper, we analyze the establishment of interdomain MPLS LSPs with QoS constraints. These LSPs cross diverse SP networks that may belong to different companies. We show that using the standard BGP route for the establishment of such LSPs is not sufficient. We propose two path establishment techniques that rely on RSVP-TE and make use of Path Computation Elements (PCEs). Our simulations show that these techniques increase the number of constrained MPLS LSPs that can be established across domain boundaries.

Proceedings of the 5th International IFIP-TC6 Conference on Networking Technologies, Services, and Protocols; Performance of Computer and Communication Networks; Mobile and Wireless Communications Systems
Cristel Pelsser
Cristel Pelsser
Critical embedded systems, Computer networking, Researcher, Professor

The focus of my research is on network operations, routing, Internet measurements, protocols and security.