Why are routes received from one neighbor on a point-to-multipoint interface that runs EIGRP not propagated to another neighbor on the same point-to-multipoint interface?
A. The split horizon rule prohibits a router from advertising a route through an interface that the router itself uses to reach the destination. In order to disable the split horizon behavior, use the no ip split-horizon eigrp as-number interface command. Some important points to remember about EIGRP split horizon are: • Split horizon behavior is turned on by default. • When you change the EIGRP split horizon setting on an interface, it resets all adjacencies with EIGRP neighbors reachable over that interface. • Split horizon should only be disabled on a hub site in a hub-and-spoke network. • Disabling split horizon on the spokes radically increases EIGRP memory consumption on the hub router, as well as the amount of traffic generated on the spoke routers. • The EIGRP split horizon behavior is not controlled or influenced by the ip split-horizon command. For more details on split horizon and poison reverse, refer to Split Horizon and Poison Reverse. For more information on commands, re
A. The split horizon rule prohibits a router from advertising a route through an interface that the router itself uses to reach the destination. In order to disable the split horizon behavior, use the no ip split-horizon eigrp as-number interface command. Some important points to remember about EIGRP split horizon are: • Split horizon behavior is turned on by default. • When you change the EIGRP split horizon setting on an interface, it resets all adjacencies with EIGRP neighbors reachable over that interface. • Split horizon should only be disabled on a hub site in a hub-and-spoke network. • Disabling split horizon on the spokes radically increases EIGRP memory consumption on the hub router, as well as the amount of traffic generated on the spoke routers. • The EIGRP split horizon behavior is not controlled or influenced by the ip split-horizon command. For more information on split horizon and poison reverse, refer to Split Horizon and Poison Reverse. For more information on commands
Related Questions
- Why are routes received from one neighbor on a point-to-multipoint interface that runs EIGRP not propagated to another neighbor on the same point-to-multipoint interface?
- Why Does Enabling IPX EIGRP on a VLAN Interface Disable IPX MLS for That Respective Interface?
- Is it possible to track specific routes with specific outgoing interface in HSRP?
