6/22/2023 0 Comments Juniper route reflector![]() Hot potato routing attempts to direct traffic to the closest AS exit point in cases where no higher-priority policyĭictates otherwise. The ability to achieve "hot potato routing". Practical implication of this fact is that the deployment of route reflection may thwart Same route selection result as that of the full IBGP mesh approach." ("IBGP" stands for "Internal BGP".) One "the route reflection approach may not yield the asserts that, because the IGP cost to a given point in However, in some situations, this method suffers from non-optimal ![]() The most popular way to distribute BGP routes between BGP speakers belonging to the sameĪS. There are three types of BGP deployments within Autonomous Systems (ASes) today: full mesh,Ĭonfederations, and route reflection. Restriction when the BGP Next Hop Is a BGP Route Route Selection from a Different IGP Locationģ.1.1. Reflectors based on the IGP cost from configured locations in the link-state IGP. BGP route selection is performed in the route The solution relies upon all route reflectors learning all paths thatĪre eligible for consideration. This facilitates, for example, a "best exit point" policy ("hot potato Reflectors, where choosing the best route based on the route reflector's IGP location This solution is particularly applicable in deployments using centralized route On the scaling and precision requirements, route selection can be specific for oneĬlient, common for a set of clients, or common for all clients of a route reflector. Of their clients, rather than from the standpoint of the route reflectors themselves. ![]() ![]() On route reflectors,īGP route selection is modified in order to choose the best route from the standpoint This document defines an extension to BGP route reflectors. Juniper Networks RFC 9107 BGP Optimal Route Reflection (BGP ORR) Abstract ![]()
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