#Router reflector full#
The above topology shows IBGP Full Mesh design. The requirement with IBGP, every BGP router needs to have a BGP neighborship with all the other BGP routers in one particular BGP Autonomous System.
Route Reflector is not a special device, it is a regular router, which can run any routing protocol, it can be a physical or virtual router that needs to have BGP code, that's all.īGP Route Reflector is an alternative to BGP full mesh. In IBGP, BGP neighborship is created between the routers which have the same BGP Autonomous System number.īGP Route Reflector as I said above, is only used in IBGP. In EBGP, BGP neighborship is created between two routers that have different BGP Autonomous System numbers. Let's extend the definition a bit.īGP Route Reflector is only used in IBGP. It offers an alternative to the logical full-mesh requirement of the internal border gateway protocol (IBGP).Ībove is the Wikipedia definition of a BGP Route Reflector. What is BGP Route Reflector?Ī BGP route reflector (RR) is a network routing component for BGP. I am explaining this topic in deep detail in my CCIE Enterprise Infrastructure Training and also my specialized BGP Zero to Hero course.
In this post, I will explain to you the BGP Route Reflector basics, after you read this post, you will be able to answer any questions regarding BGP Route Reflectors.
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