Dynamic Logical Path Configuration Method to Enhance Reliability in an MPLS Network

Takayoshi TAKEHARA  Hideki TODE  Koso MURAKAMI  

IEICE TRANSACTIONS on Communications   Vol.E85-B   No.1   pp.157-164
Publication Date: 2002/01/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Internet Technology II -- Traffic Control and Performance Evaluation in the Internet)
MPLS,  traffic engineering,  self-healing,  restoration ratio,  utilization,  

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The requirement to realize large-capacity, high-speed and guaranteed Quality of Service (QoS) communications in IP networks is a recent development. A technique to satisfy these requirements, Multi-Protocol Label Switching (MPLS) is the focus of this paper. In the future, it is expected that congestion and faults on a Label Switched Path (LSP) will seriously affect service contents because various applications are densely served in a large area. In MPLS, however, methods to solve these problems are not clear. Therefore, this study proposes a concrete traffic engineering method to avoid heavy congestion, and at the same time, endeavors to realize a fault-tolerant network by autonomous restoration, or self-healing.