Effect of Route Reflection on IBGP Convergence and an approach to reduce convergence time
Journal Title: International Journal of Scientific Research and Management - Year 2016, Vol 4, Issue 8
Abstract
Request for Comments (RFCs) for Border gateway Protocol (BGP) suggest that the network topology using BGP must have full mesh of IBGP sessions to avoid routing loops . Routing loop is a condition where packets are routed between two or more routers resulting in slow convergence and routing instability. Route reflection is one of the strategies to avoid full mesh of internal B GP sessions between BGP speaking routers in an autonomous system. This paper focuses on demonstrating an effect of using route reflection on convergence time in a small network. A mixed network scenario of external and internal BGP sessions is considered f or demonstration . Results of the simulation have shown that, r oute reflection can significantly increase the convergence time avoiding full mesh. Also an approach to reduce the convergence time has been proposed . Proposed algorithm is based on the principl e of creating logical group of router reflectors. The same concept can be scaled for larger networks for different scenarios
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Santosh s
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