3Com Switch 4800G 24-Port Configuration Manual page 264

264 C 27: RIP C
HAPTER
Configuring RIPv2 Route
Summarization
n
Disabling Host Route
Reception
ONFIGURATION
To do...
Enter system view
Enter interface view
Define an inbound additional routing
metric
Define an outbound additional routing
metric
Route summarization means that subnets in a natural network are summarized
with a natural network that is sent to other networks. This feature can reduce the
size of routing tables.
Enabling RIPv2 route automatic summarization
You can disable RIPv2 route automatic summarization if you want to advertise all
subnet routes.
Follow these steps to enable RIPv2 route automatic summarization:
To do...
Enter system view
Enter RIP view
Enable RIPv2 automatic route summarization
Advertising a summary route
You can configure RIPv2 to advertise a summary route on the specified interface.
To do so, use the following commands:
To do...
Enter system view
Enter RIP view
Disable RIPv2 automatic route
summarization
Return to system view
Enter interface view
Advertise a summary route
You need to disable RIPv2 route automatic summarization before advertising a
summary route on an interface.
Sometimes a router may receive many host routes from the same network, which
are not helpful for routing and occupy a large amount of network resources. In
this case, you can disable RIP from receiving host routes to save network resources.
Use the command...
system-view
interface interface-type
interface-number
rip metricin [ route-policy
route-policy-name ] value
rip metricout [ route-policy
route-policy-name ] value
Use the command...
system-view
rip [ process-id ]
summary
Use the command...
system-view
rip [ process-id ]
undo summary
quit
interface interface-type
interface-number
rip summary-address ip-address { mask
| mask-length }
Remarks
--
--
Optional
0 by default
Optional
1 by default
Remarks
--
--
Optional
Enabled by default
Remarks
--
--
Required
Enabled by default
-
-
Required