H3C Technologies H3C WX3000E Series Wireless Switches - Manual (Page 161)

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Configuring RIP route control
In complex networks, you need to configure advanced RIP features.
This section covers the following topics:
• Configuring an additional routing metric
• Configuring RIPv2 route summarization
• Disabling host route reception
• Advertising a default route
• Configuring inbound/outbound route filtering
• Configuring a priority for RIP
• Configuring RIP route redistribution
Before configuring RIP routing feature, complete the following tasks:
• Configure an IP address for each interface, and make sure all neighboring routers can
communicate with each other.
• Configure RIP basic functions
Configuring an additional routing metric
An additional routing metric (hop count) can be added to the metric of an inbound or outbound RIP
route.
The outbound additional metric is added to the metric of a sent route, and the route’s metric in the routing
table is not changed.
The inbound additional metric is added to the metric of a received route before the route is added into
the routing table, and the route’s metric is changed. If the sum of the additional metric and the original
metric is greater than 16, the metric of the route will be 16.
Follow these steps to configure additional routing metrics:
To do… Use the command… Remarks
Enter system view system-view —
Enter interface view
interface interface-type
interface-number
—
Define an inbound additional
routing metric rip metricin [ route-policy
route-policy-name ] value Optional
0 by default
Define an outbound additional
routing metric rip metricout [ route-policy
route-policy-name ] value Optional
1 by default
Configuring RIPv2 route summarization
Route summarization means that subnets in a natural network are summarized into a natural network that
is sent to other networks. This feature can reduce the size of routing tables.
After route summarization, the smallest metric among all the summarized routes is used as the metric of
the summary route.