MPLS alternate path restoration with guaranteed bandwidth

Authors:
Kil-Hung Lee;Jae-Soo Kim
Affiliations:
Dept. of Computer Science and Engineering, Seoul National Univ. of Tech., Seoul, Korea;Dept. of Computer Science and Engineering, Seoul National Univ. of Tech., Seoul, Korea
Venue:
ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part II
Year:
2006

Citing 4
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Abstract

This paper presents a new MPLS restoration scheme that guarantees bandwidth requirements. This scheme uses network resources more efficiently and minimizes the backup path cost effectively. The proposed restoration scheme starts the recovery action at a selected node of a working LSP. At the LSP setup, the working and backup path bandwidth and cost are evaluated and a starting node of restoration is designated. By doing so, the restoration speed could be further increased and resource utilization could be maximized with guaranteed bandwidth. Simulation is conducted to evaluate the performance of the proposed scheme. The results show that our scheme can provide fast restoration with acceptable delay and loss characteristics with higher restoration rate.