3Com 10014298 Configuring the Default Cost for the Imported Route, Setting the RIP Preference

96CHAPTER 5: IP ROUTING PROTOCOL OPERATION

Perform the following configurations in RIP view.

Table 94 Enabling RIP to Import Routes of Other Protocols

Operation	Command
Enable RIP to import routes of other protocols	import-route protocol [ cost value ]
	[route-policyroute-policy-name ]
Disable route imports from other protocols	undo import-route protocol

By default, RIP does not import the route information of other protocols.

Configuring the Default Cost for the Imported Route

When you use the import-routecommand to import the routes of other protocols, you can specify their cost. If you do not specify the cost of the imported route, RIP will set the cost to the default cost, specified by the default cost parameter.

Perform the following configurations in RIP view.

Table 95 Configuring the Default Cost for the Imported Route

Operation	Command
Configure default cost for the imported route	default cost value
Restore the default cost of the imported	undo default cost
route.

By default, the cost value for the RIP imported route is 1.

Setting the RIP Preference

Each routing protocol has its own preference by which the routing policy selects the optimal one from the routes of different protocols. The greater the preference value, the lower the preference. The preference of RIP can be set manually.

Perform the following configurations in RIP view.

Table 96 Setting the RIP Preference

Operation	Command
Set the RIP Preference	preference value
Restore the default value of RIP preference	undo preference

By default, the preference of RIP is 100.

Setting Additional Routing Metrics

The additional routing metric, is the input or output routing metric added to a RIP route. It does not change the metric value of the route in the routing table, but adds a specified metric value when the interface receives or sends a route.

Perform the following configuration in VLAN interface view.

Table 97 Setting Additional Routing Metric

Operation	Command
Set the additional routing metric of the route	rip metricin value
when the interface receives an RIP packet