Dynamic logical path configuration method considering reliability in MPLS network

The requirement to realize large-capacity, high-speed and guaranteed quality of service (QoS) communications in IP networks is a new development. A technique to satisfy these requirements, multiprotocol 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.