Implementation of Traffic Engineering and Addressing QoS in MPLS VPN Based IP Backbone

With increasing popularity and ever emerging business needs there was an immense focus to improve the Internet world and to provide guarantee for service delivery. Simplest example for this case is VoIP where two subscribers make a voice call through MPLS based backbone. The end subscribers should have similar quality as that of POTS. Subscribers will expect a real time conversation with limited or no jitter. A guaranteed bandwidth must be provided to VoIP users as they don’t care about core network which logically should be transparent to end users. Another feature of MPLS called Quality of Services (QoS) addressed these issues effectively by ensuring real time conversation and guaranteed bandwidth. VPN is a tunnel through Internet to connect two different local area networks in a strict security and data encryption techniques. MPLS VPN use peer to peer VPN which merges the salient feature of Overlay VPN model and peer to peer VPN. In this paper we have enlighten MPLS introduction, MPLS VPN, Traffic Engineering and MPLS QoS in MPLS IP backbone. We have provided connectivity to different customers in MPLS backbone by implementing MPLS VPN and Provide Quality of Service to these customers locally in this backbone area. Also apply Traffic Engineering in MPLS backbone to optimize the backbone resources. On top of MPLS TE and MPLS QoS, we have also discussed MPLS QoS which guarantees less or no jitter and fixed bandwidth. Mainly we have used GNS3 for implementation and simulation.