An Improvable Quickly Re-router Model Based On MPLS

Network routing deployed today is focused primarily on network connectivity , and supports the best effort class . Multi-Protocol Label Switching,on the other hand, by integrating forwarding based on label-swapping of a link local label with network layer routing allows flexibility in the delivery of new routings ervices . MPLS i s rapidly becoming a key technology for use in core networks , including converged data and voice networks.MPLS does not replace IP routing , but works along side existing and future routing technologies to provide very high-speed data forwarding between Label-Switched Routers (LSRs) together with reservation of bandwidth for traffic flows with differing Quality of Service (QoS) requirements. The MPLS protection and restoration can resolve some problems that tradition restoration models can not handle. Therefore, the protection and restoration in MPLS network is an important problem that needs to be addressed.In this thesis I will look at different techniques that can be used to reroute traffic faster then the current IP rerouting methods in the case of a failure in a network. I will concentrate on proposals for MPLS but also describe approaches at other layers in the network communications model. The aim of this thesis is to look at the different proposals from IETF that shall make traffic flows in an MPLS domain resilient to failures for real time services that demands that traffic can be rerouted in the network as fast as possible.According to this a novel quickly re-router model based on MPLS is presented,which mace use of links between working path and backup path (reduced the chance of lost packet ) as model to make the traffic in shorter path and avoid grouping disorder and longer delay caused by Haskin model,and more loss of data packages Makam model caused was avoided, At the same time,decrease the reserved resources used by Brige model.Finally analysis Was proceeded by quickly re-router technique , With resources effectively the angle that make use of sets out , Give a quickly re-router model from the calculate way,And pass better performance of quick re-routing of new model was shown through simulation results of NS2.