Cisco NCS 6000 Series

PurposeCommand or Action
(Optional) Defines the interfaces on which the RIP routing
protocol runs.
interface type interface-path-id
Example:
Step 7
RP/0/RP0/CPU0:router(config-rip)# interface
GigabitEthernet 0/1/0/0
(Optional) Allows the networking device to accept route
entries received in update packets with a metric of zero
(0). The received route entry is set to a metric of one (1).
metric-zero-accept
Example:
RP/0/RP0/CPU0:router(config-rip-if)#
metro-zero-accept
Step 8
(Optional) Disables the split horizon mechanism.split-horizon disable
Step 9
Example:
• By default, split horizon is enabled.
RP/0/RP0/CPU0:router(config-rip-if)# split-horizon
disable
• In general, we do not recommend changing the state
of the default for the split-horizon command, unless
you are certain that your application requires a change
to properly advertise routes.
Enables poison reverse processing of RIP router updates.poison-reverse
Example:
Step 10
RP/0/RP0/CPU0:router(config-rip-if)#
poison-reverse
commit
Step 11
Control Routing Information
This task describes how to control or prevent routing update exchange and propagation.
Some reasons to control or prevent routing updates are:
• To slow or stop the update traffic on a WAN link—If you do not control update traffic on an on-demand
WAN link, the link remains up constantly. By default, RIP routing updates occur every 30 seconds.
• To prevent routing loops—If you have redundant paths or are redistributing routes into another routing
domain, you may want to filter the propagation of one of the paths.
• To filter network received in updates — If you do not want other routers from learning a particular
device’s interpretation of one or more routes, you can suppress that information.
• To prevent other routers from processing routes dynamically— If you do not want to process routing
updates entering the interface, you can suppress that information.
• To preserve bandwidth—You can ensure maximum bandwidth availability for data traffic by reducing
unnecessary routing update traffic.
Routing Configuration Guide for Cisco NCS 6000 Series Routers, IOS XR Release 6.4.x
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Implementing RIP
Control Routing Information