Right, I know the best thing to do here would be to lab this and I will, promise, but I'd like to know your understanding on this and if it is something to worry about. Let's say we have 4 routers on a LAN all talking eigrp. Two of these routers, router 1 and 2, have an eigrp path to subnet 1.1.1.0/24 somewhere else thorugh an interface not on the LAN and lets's assume for sake of argument that the metric to 1.1.1.0/24 is the same for both of them. Considering split-horizon there will be only one router, 1 or 2, injecting that route on the LAN, right? One of the two routers will have its best path to 1.1.1.0/24 through its own interface but won't inject it on the lan as it heard it injected on the LAN from the other one. 1) What decides which one of the two will inject the route on LAN? Is it the first router timewise that injects it on the LAN? 2) Let's assume R1 did, what happens if the metric through R2 "improves", would the LAN routers choose the path through R2 now? Fulvio _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
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