Configuring Route Summarization Between Ospf Areas - Motorola BSR 2000 Configuration And Management Manual

Release 1.0
Example
The following example enables NSSA authentication on area 1:

Configuring Route Summarization between OSPF Areas

Route summarization causes an ABR to advertise a single summary route to other
areas. An ABR advertises networks in one area to the backbone. If the network
numbers in an area have contiguous assignments, you can configure the ABR to
advertise a summary route that covers all the individual networks within the area that
are in the specified range.
Follow these options to configure OSPF route summarization:
526360-001-00 Rev. B
where:
A.B.C.D is the IP summary address.
A.B.C.D is the IP summary address mask.
0-4294967295 is the 32-bit tag value for filtering externally derived routing
information.
router ospf
redistribute rip subnets
network 180.21.54.0. 0.0.0.255 area 1
area 1 nssa
Use the area range advertise command in Router Configuration mode to specify
an address range for which a single route is advertised:
MOT (config-ospf)#area <0-4294967295> range <A.B.C.D> <A.B.C.D>
advertise
where:
0-4294967295 is the number or IP address for the area.
A.B.C.D is the IP address for an individual network within the area.
A.B.C.D is the subnet mask for the address.
Use the area range not-advertise command in Router Configuration mode to
specify an address range for a single route that is not advertised:
MOT (config-ospf)#area <0-4294967295> range {<A.B.C.D> <A.B.C.D>}
not-advertise
where:
MGBI
Configuring OSPF
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