A Distributable Traffic - based MPLS Dynamic Load Balancing Scheme

Abstract

A new comprehensive metric based on LSP queuing delay and packet loss probability, which is referred to as DT (distributable traffic), is defined to reflect the load level of LSP. Then based on DT, an dynamic MPLS load balancing scheme is proposed to perform traffic distribution in MPLS networks, which is referred to as DTLB. Only LERs are required to perform special function in DTLB scheme, so the scalability is maintained. Simulation results indicate that the new proposed scheme can perform stable even in dynamic network environment, and it can distribute the traffic onto parallel LSPs more evenly and fairly when compared to other schemes