Multipath Routing for Traffic Engineering with Flow Classification in GMPLS Network

Traffic engineering broadly relates to optimization of the operational performance of a network. This paper discusses techniques like multi-path routing using traffic splitting, constraint-based routing, path protection etc. Multipath routing is capable of aggregating the resources of multiple paths and reducing the blocking capabilities in quality of service (QoS) oriented networks, allowing data transfer at higher rate when compared to single path. It also increases the reliability of delivery. Especially, the proposed multipath routing scheme using different switching technologies with classified flows can be applied to generalized multiprotocol label switching (GMPLS) network for optical Internet, then enhance network performance through traffic engineering and meet the QoS requirements