Seamless MPLS using BGP Label Unicast Deployment in Service Provider Network using GNS3 Simulator
Sony Jenusha M1, Prem kumar B2, Jayashree Balaji3, Senthilkumar J P4, Amutha M5

1Sony Jenusha M, Department of Electronics & Communication, Sona College of Technology, Salem, (Tamil Nadu), India.
2Prem kumar B, Smart World & Communication, Larsen & Toubro Limited, Chennai, (Tamil Nadu), India.
3Jayashree Balaji, Smart World & Communication, Larsen & ToubroLimited, Chennai, (Tamil Nadu), India.
4Senthil kumar J P, Department of Electronics & communication, Sona College of Technology, Salem, (Tamil Nadu), India.
5Amutha M, Department of Electronics & Communication, Sona College of Technology, Salem, (Tamil Nadu), India.

Manuscript received on 23 March 2019 | Revised Manuscript received on 30 March 2019 | Manuscript published on 30 March 2019 | PP: 1088-1092 | Volume-7 Issue-6, March 2019 | Retrieval Number: F2431037619/19©BEIESP
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Abstract: The objective of this paper was to interconnect different Service Provider Networks by using Seamless MPLS with BGP Label Unicast (BGP-LU- RFC3107) instead of traditional MPLS with Label Distribution Protocol (LDPRFC3036) between two NNI. The proposed design was incorporated using BGP-LU as it untangled the complications of advertising MPLS Transport Path across different Autonomous Systems. BGP LU was achieved by injecting Label of the FEC (Field Equivalence Class) into BGP NLRI Field attribute and this was identified by SAFI (Subsequent Address Family Identifier) field. In most Service Provider Networks, scalability was a highlighted constraint. Hence, with the deployment of BGP-LU along with MPLS, the service providers were connected across various geographical locations through NNI (Network to Network Integration) that shared only the label of customer FEC via BGP VPNV4 Routes. The simulation results were demonstrated with two Customers who had their offices at different locations connected to different service providers on different AS. The communication between the two offices in different AS was established by using BGPLU where the labels were exchanged without any LDP or IGP between them. Thus, BGP-LU was deployed to scale the network reachability for multiple customers in different service provider networks. In the proposed approach, Scalability and Modularity were achieved that enhanced the Service Provider Network Design.
Keywords: MPLS (Multi-Protocol Label Switching), BGP (Border Gateway Protocol), BGP-LU (Border Gateway Protocol Label Unicast), Redistribute, AS (Autonomous System), ASBR (Autonomous System Border Router), RR (Route Reflector).
Scope of the Article: Mobile Applications and Services for IoT