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Configuring RIP RIP Options

OmniSwitch 6800/6850/9000 Network Configuration Guide June 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 hold-down 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 hold-down 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 hold-down 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 hold-down timer is not the same as the RIP hold-down timer. The RIP hold-down

timer is fixed at 120 seconds and is not configurable. The forced hold-down timer defines a separate inter-

val that overlaps the hold-down state. During the forced hold-down 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.

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