RIP interface parameters
TABLE 49 RIP interface parameters
Parameter Description Default
RIP state and version The state of the protocol and the version that is
supported on the interface. The version can be
one of the following:
• Version 1 only
• Version 2 only
• Version 1, but also compatible with
version 2
NOTE
You also must enable RIP globally.
Disabled
Metric A numeric cost the device adds to RIP routes
learned on the interface. This parameter applies
only to RIP routes.
1
Learning default routes Locally overrides the global setting. Disabled
Loop prevention The method a device uses to prevent routing
loops caused by advertising a route on the same
interface as the one on which the device learned
the route.
• Split horizon - The device does not
advertise a route on the same
interface as the one on which the
device learned the route.
• Poison reverse - The device assigns a
cost of 16 ("innite" or "unreachable")
to a route before advertising it on the
same interface as the one on which
the device learned the route.
NOTE
Enabling poison reverse disables
split horizon on the interface.
Split horizon
Advertising and learning specic routes You can control the routes that a device learns or
advertises.
The device learns and advertises all RIP routes
on all interfaces.
Conguring RIP parameters
Enabling RIP
RIP is disabled by default. To enable RIP, you must enable it globally and also on individual interfaces on which you want to advertise RIP.
Globally enabling the protocol does not enable it on individual interfaces. When you enable RIP on a port, you also must specify the
version (version 1 only, version 2 only, or version 1 compatible with version 2).
To enable RIP globally, enter the router rip command.
device(config)# router rip
Syntax: [no] router rip
Conguring RIP parameters
FastIron Ethernet Switch Layer 3 Routing
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