Load Balancing in MPLS Networks


The KIPS Transactions:PartC, Vol. 9, No. 6, pp. 893-902, Dec. 2002
10.3745/KIPSTC.2002.9.6.893,   PDF Download:

Abstract

MPLS enables efficient explicit routing, and thus provides great advantages in supporting traffic engineering. Exploiting this capability, we propose a load balancing scheme which deploys a multipath routing. It is named LBM (Load Balancing in MPLS networks), and targets at efficient network utilization as well as performance enhancement. LBM establishes multiple LSP (Label Switched Path)s between a pair of ingress-egress routers, and distributes traffic over these LSPs at the flow level. Its routing decision is based on both the length and the utilization of the paths. In order to enhance the efficiency of a link usage, a link is limited to be used by shorter paths as its utilization becomes higher. Longer paths are considered to be candidate alternative paths as the utilization of shorter paths becomes higher. Simulation experiments are performed in order to compare the performance of LBM to that of static shortest path only scheme as well as the other representative dynamic multipath traffic distribution approaches. The simulation results show that LBM outperforms the compared approaches, and the performance gain is more significant when the traffic distribution among the ingress-egress pairs is non-uniform.


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Cite this article
[IEEE Style]
S. R. Kim, J. H. Song, M. J. Lee, "Load Balancing in MPLS Networks," The KIPS Transactions:PartC, vol. 9, no. 6, pp. 893-902, 2002. DOI: 10.3745/KIPSTC.2002.9.6.893.

[ACM Style]
Sae Rin Kim, Jeong Hwa Song, and Mee Jeong Lee. 2002. Load Balancing in MPLS Networks. The KIPS Transactions:PartC, 9, 6, (2002), 893-902. DOI: 10.3745/KIPSTC.2002.9.6.893.