PERFORMANCE MEASURES OF INTEGRATED AUTOMATICALLY SWITCHING OPTICAL NETWORKS/GMPLS

electronics and communication engineering

With the ever increasing growth of services and the corresponding demand for Quality of Service requirements that are placed on IP-based networks, the essential aspects of network planning will be critical in the coming years. A wide number of problems must be faced in order for the next generation of IP networks to meet their expected performance. With Performance Evaluation and Planning Methods for the Next Generation Internet for these developing trends, several new models are introduced that will lead to better Internet performance. One of the best solutions for meeting the Next –Generation Internet applications like Video-On-Demand, e-Science, RIA’s Video conferencing and High Definition Television (HDTV) is the Optical Networks (ONS) which has a greater potential transmission, capacity than networking in the electrical domain. The core technology in ONS is Automatically Switching Optical Networks (ASON), which plays an important role in the dynamic routing on network connection. ASON routing protocol based on GMPLS includes the topology of optical network based on transmission of reach ability information. The Generalized Multiprotocol Label Switching is a protocol extending MPLS to manage further classes of interfaces and switching technologies. GMPLS comprises of three main protocols namely, 1.Signaling Protocol, 2.Routing Protocol and 3.Link Management Protocol (LMP). The signaling protocol in GMPLS process the exchanging of messages within the control plane to set up, maintain and modify the data paths. The protocol used for signaling is the Rsvp-TE that is sent between signaling controllers.The Routing protocol in GMPLS distributes the information that will be used as the basis of the path computation . The chief protocols used for routing are the OSPF-TE and IS-IS protocols. The link management protocol (LMP) overcomes problem of reducing the overhead errors and complexity in the network. The protocols used in LMP are the LDP and CRLD-TE. In this paper, we study and analyze the performance of various GMPLS sub protocols and their corresponding performance measures for future betterment.

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