Chapter 29
| IP Routing Commands
Routing Information Protocol (RIP)
– 835 –
ip rip split-horizon This command enables split-horizon or poison-reverse (a variation) on an interface.
Use the no form to disable this function.
Syntax
ip rip split-horizon [poisoned]
no rip ip split-horizon
poisoned - Enables poison-reverse on the current interface.
Command Mode
Interface Configuration (VLAN)
Default Setting
split-horizon poisoned
Command Usage
â—† Split horizon never propagates routes back to an interface from which they
have been acquired.
â—† Poison reverse propagates routes back to an interface port from which they
have been acquired, but sets the distance-vector metrics to infinity. (This
provides faster convergence.)
â—† If split-horizon is disabled with the no rip ip split-horizon command, and a
loop occurs, the hop count for a route may be gradually incremented to infinity
(that is, 16) before the route is deemed unreachable.
Example
This example propagates routes back to the source using poison-reverse.
Console(config)#interface vlan 1
Console(config-if)#ip split-horizon poison-reverse
Console(config-if)#
clear ip rip route This command clears specified data from the RIP routing table.
Syntax
clear ip rip route {ip-address netmask | all | connected | ospf | rip | static}
ip-address - IP address of a route entry.
netmask - Network mask for the route. This mask identifies the network
address bits used for the associated routing entries.
all - Deletes all entries from the routing table.
connected - Deletes all currently connected entries.
To Next Page
Loading...
Need help?
General