ECS4660-28F_Management Guide-R03

C HAPTER 51 | IP Routing Commands
Routing Information Protocol (RIP)
– 1747 –
EXAMPLE
Console(config)#interface vlan 1
Console(config-if)#ip rip send-packet
Console(config-if)#
RELATED COMMANDS
ip rip receive-packet (1745)
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
◆ Split horizon never propagates routes back to an interface from which
they have been acquired.
◆ 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.)
◆ 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)#