H3C Technologies H3C S7500E Series Switches - Manual (Page 225)

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Only active routes can be redistributed. You can use the display ip routing-table protocol command
to display route state information.
Enabling Default Route Redistribution into BGP
Using the import-route command cannot redistribute a default route. To do so, complete the following
configuration.
Follow these steps to enable default route redistribution into BGP:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —
Enable route redistribution from a
routing protocol into BGP
import-route protocol [ process-id
| all-processes ] [ med med-value
| route-policy route-policy-name ]
*
Required
Not redistributed by default
Enable default route redistribution
into BGP
default-route imported
Optional
Not enabled by default
Controlling Route Distribution and Reception
Prerequisites
BGP connections have been created.
Configuring BGP Route Summarization
To reduce the routing table size on medium and large BGP networks, you need to configure route
summarization on BGP routers. BGP supports two summarization modes: automatic and manual.
Manual summary routes enjoy a higher priority than automatic ones.
Configure automatic route summarization
After automatic route summarization is configured, BGP summarizes redistributed IGP subnets to
advertise only natural networks. Routes injected with the network command can not be summarized.
Follow these steps to configure automatic route summarization:
To do… Use the command… Remarks
Enter system view system-view —
Enter BGP view bgp as-number —