Multiprotocol Label Switching Traffic Engineering per virtual private network routing and forwarding

Abstract

Traffic engineering is a technique to control path of traffic at the networks to improving utilization of networks resources to avoid the congestion, for cost issue and grantee a certain amount of bandwidth is available for a particular customer’s traffic, both in the steady state and under failure conditions. Using standard internet protocol routing all traffic between two points is sent over the shortest path even though multiple paths may exist. Especially during periods of high traffic volume, this can result in traffic congestion on certain routes while alternative routes are underused, even though traffic protection is not granted during link failure, the standard IP routing protocols don’t give a chance to mark some traffic as important than others. In this thesis Multiprotocol Label Switching Traffic Engineering modeled using Graphical Network Simulator and applied virtual private network routing and forwarding concept and Open Shortest Path First, Multiprotocol Border Gateway Protocol, Resource Reservation Protocol and Label Distribution Protocol protocols by assign the routes in Multiprotocol Label Switching network over Traffic engineering tunnels for each virtual private network routing and forwarding to ensure the traffic of each customer go through deferent route tunnel and share the only one route when the other route tunnel tarn down or give specific user preemption to use the overall route and disconnect the other user. The emulation results shown that the each user’s traffic went through deferent path from head quarter to branch and the users’ traffic shared the only one route tunnel when the main route tunnel for customer “A1” tear down with the same users’ priorities and the route bandwidth enough for the two users tunnels, when IV Customer “A1”was given high priority and the route bandwidth not enough for the two customers customer B1’s tunnel was disconnected.