The show ip eigrp topology command output on a router displays a successor route and a feasible successor route to network 192.168.1.0/24. It is accomplished with the distribute-list command.ġ1. Filtering of routes can be matched against ACLs (named or numbered), IP prefix lists, route maps, and gateway IP addresses. Split horizon can only be disabled in global configuration mode.Įxplanation: EIGRP supports filtering of routes as they are received or advertised from an interface.Split horizon needs to be disabled on hub-and-spoke topologies.Split horizon needs to be enabled on a Layer 2 Virtual Private Network.Split horizon is disabled by default on all interfaces.Which valuable piece of information can the network engineer learn about split horizon on an EIGRP network? A junior network engineer is learning about mechanisms to prevent routing loops on EIGRP. EIGRP neighbors can still form an adjacency if the timers do not match, but the hellos must be received before the hold time reaches zero.ĩ. If the hold time reaches 0, EIGRP declares the neighbor unreachable and notifies DUAL of a topology change. The hold time decrements, and upon receipt of a hello packet, the hold time resets and restarts the countdown. EIGRP uses a second timer called the hold timer that defaults to three times the hello timer. EIGRP hello intervals specify the maximum time that the router should wait to receive the next hello.Įxplanation: EIGRP hello packets are sent out in intervals according to the hello timer.EIGRP hold timers specify the minimum time that the router should wait to send the next hello.EIGRP hello intervals and hold timers must match between EIGRP neighbors to form an EIGRP adjacency.EIGRP hello intervals should be less than the EIGRP hold timers.What is a factor that the administrator needs to consider? A network administrator is configuring the hello timer and the hold timer on an EIGRP router. The offset value is calculated from an additional delay value that was added to the existing delay in the EIGRP path attribute.Ĩ. On the downstream neighbor, the path metric increases by the offset value specified in the offset list. An offset-list command is configured on a router to modify the metric value of a route. Explanation: Offset lists allow for the modification of route attributes based on the direction of the update, a specific prefix, or a combination of direction and prefix.
0 kommentar(er)
