Published Paper Details:

Enterprise network is a network group or single network with one administrative control in an enterprise. An autonomous system (AS) is a network collection or single with administrative domain in an internet. An autonomous system contain a global different number called Autonomous system number (ASN).ASN is a unique number assigned to each AS which provides identifier for the system. Within an autonomous system, nodes communicate with one other using protocol called Interior gateway protocol(IGP).An autonomous system share and communicate route with another autonomous system using Border Gateway Protocol(BGP).BGP is an inter autonomous system routing protocol nodes in one autonomous system connect with other autonomous system.BGP is a path based protocol for routing to find efficient route from source to destination and it take routing decision based on the routing procedure and policies. From the autonomous system one router acts as border router communication information of route and create routing table using TCP connection. The border router advertises path and information of routing to its neighbor autonomous system. This research paper contains autonomous system and detail review of BGP protocol and analyzes the two different scenario contains two autonomous system with BGP protocol enabled configuration. The simulation study is conducted using OPNET simulator. Two different case studies have been created with varying parameter. For the first scenario, six BGP enabled router and links are used with various BGP parameter and specifically local preference attribute used for traffic tuning to find the network operation. For the second scenario, Eight BGP enabled router and links are used with various BGP configuration to find the result. It is strongly recommended that BGP protocol provides optimal route to a destination in an enterprise network.