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78 CHAPTER 5: IP ROUTING PROTOCOL OPERATION
Perform the following configuration in VLAN interface view.
By default, split horizon of the interface is enabled.
Enabling RIP to Import Routes of Other Protocols
RIP allows users to import the route information of other protocols into the
routing table.
RIP can import direct, static, OSPF, BGP, and IS-IS routes.
BGP and IS-IS require the advanced version of the software on the Switch 8800.
Perform the following configurations in RIP view.
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-route command 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.
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.
Table 16 Configuring Split Horizon
Operation Command
Enable split horizon rip split-horizon
Disable split horizon undo rip split-horizon
Table 17 Enabling RIP to Import Routes of Other Protocols
Operation Command
Enable RIP to import routes of other protocols import-route protocol [ cost value ]
[route-policy route-policy-name ]
Disable route imports from other protocols undo import-route protocol
Table 18 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
route.
undo default cost