ccna dumps 200-125 pdf

ccna dumps 200-125 pdf

Routers can learn routing entries in a variety of ways: static manual configuration, various dynamic routing protocols, and more. When the router learns two routes to the same destination from two different ways, the router compares the AD values ​​of the two routes , that is, the management distance, preferably the route with a small AD value. If the AD values ​​are equal, for example, the same routing protocol, the metric value is further compared . Of course, this also involves the working mechanism problem of different routing protocols, which is specifically discussed for different routing protocols. As shown in the following figure, R3 and R1 run the RIP protocol, and R3 establishes adjacency relationship with R2 through OSPF . Therefore, R3 learns the route to the destination 1.1.1.0/24 from RIP and OSPF . The two routes use R1 and R2 as the next hop respectively. Then R3 finally chooses the OSPF route to be loaded into the routing table,ccna dumps 200-125 pdf, which is to use R2 as the actual destination.