Switching White Papers
Minimizing Re-Routing in MPLS Networks With Preemption-Aware Constraint-Based Routing
Overview The importance of providing bandwidth guarantees in packet backbone networks is increasing with the emergence of virtual private networks and mobile networks, where bandwidth requirements of aggregate packet flows with diverse characteristics have to be supported. Both in VPNs and in mobile networks traffic will be prioritized to support preemption of less important traffic. The Multiprotocol Label Switching architecture addresses both traffic prioritization and bandwidth guarantees. A proposed way of doing path selection in MPLS is based on Constrained Shortest Path first (CSPF) methods. This paper studies the effect of distributed CSPF based path selection on the dynamics of LSP preemption in MPLS networks.
| Publisher | University of Bedfordshire | File Format | |
|---|---|---|---|
| Date Published | February 2001 | ||
| Format | White Papers | ||
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