Chapter 29
| IP Routing Commands
Open Shortest Path First (OSPFv2)
– 849 –
Example
This example redistributes routes learned from BGP as Type 1 external routes.
Console(config-router)#redistribute bgp metric-type 1
Console(config-router)#
Related Commands
default-information originate (841)
summary-address This command aggregates routes learned from other protocols. Use the no form to
remove a summary address.
Syntax
[no] summary-address summary-address netmask
summary-address - Summary address covering a range of addresses.
netmask - Network mask for the summary route.
Command Mode
Router Configuration
Default Setting
Disabled
Command Usage
Redistributing routes from other protocols into OSPF normally requires the router
to advertise each route individually in an external LSA. An Autonomous System
Boundary Router (ASBR) can be configured to redistribute routes learned from
other protocols by advertising an aggregate route into all attached autonomous
systems. This helps both to decrease the number of external LSAs and the size of
the OSPF link state database.
Example
This example creates a summary address for all routes contained in 192.168.x.x.
Console(config-router)#summary-address 192.168.0.0 255.255.0.0
Console(config-router)#
Related Commands
area range (887)
redistribute (889)
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