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Configuring RIP RIP Options
OmniSwitch 6600 Family Network Configuration Guide April 2006 page 16-9
RIP Options
The following sections detail procedures for configuring RIP options. RIP must be loaded and enabled on
the switch before you can configure any of the RIP configuration options.
Configuring the RIP Forced Hold-down Interval
The RIP forced holddown timer value defines an amount of time, in seconds, during which routing infor-
mation regarding better paths is suppressed. A route enters into a forced holddown state when an update
packet is received that indicates the route is unreachable and when this timer is set to a non-zero value.
After this timer has expired and if the value is less that 120 seconds, the route enters a holddown state for
the rest of the period until the remainder of the 120 seconds has also expired. During this time the switch
will accept any advertisements for better paths that are received.
Note that the forced holddown timer is not the same as the RIP holddown timer. The RIP holddown timer
is fixed at 120 seconds and is not configurable. The forced holddown timer defines a separate interval that
overlaps the holddown state. During the forced holddown timer interval, the switch will not accept better
routes from other gateways.
Use the ip rip force-holddowntimer command to configure the interval during which a RIP route
remains in a forced hold-down state. Enter the command and the forced hold-down interval value, in
seconds. For example, to set a forced hold-down interval value of 10 seconds you would enter:
-> ip rip force-holddowntimer 10
The valid forced hold-down timer range is 0 to 120. The default is 0.
Use the show ip rip command to display the current forced hold-down timer value.
Enabling a RIP Host Route
A host route differs from a network route, which is a route to a specific network. This command allows a
direct connection to the host without using the RIP table. If a switch is directly attached to a host on a
network, use the ip rip host-route command to enable a default route to the host. For example:
-> ip rip host-route
The default is to enable a default host route.
Use the no ip rip host-route command to disable the host route. Use the show ip rip command to display
the current host route status.
RIP Redistribution
Redistribution provides a way to exchange routing information between RIP networks and OSPF and BGP
networks; and also redistributes local and static routes into RIP. Basically, redistribution makes a non-RIP
route look like a RIP route. Configuring RIP redistribution consists of the following tasks:
1 Enabling RIP Redistribution
2 Configuring a RIP Redistribution Policy