Brocade Communications Systems ICX 7250 series, Configuration Manual

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4. Enter the area command to define a second OSPFv2 area ID.
device(config-ospf-router)# area 10.1.1.1
The following example assigns an OSPFv2 ID to two areas. One of the areas is assigned by decimal number. The second area is
assigned by IP address.
device# configure terminal
device(config)# router ospf
device(config-ospf-router)# area 0
device(config-ospf-router)# area 10.1.1.1
Configuring an NSSA
OSPFv2 areas can be defined as NSSA areas with modifiable parameters.
1. Enter the configure terminal command to access global configuration mode.
device# configure terminal
2. Enter the router ospf command to enter OSPF router configuration mode and enable OSPFv2 on the device.
device(config)# router ospf
3. Enter the area nssa command and specify an area address and a cost.
device(config-ospf-router)# area 1.1.1.1 nssa 1
Area 1.1.1.1 is defined as an NSSA.
The following example configures OSPF area 1.1.1.1 as an NSSA.
device# configure terminal
device(router ospf
device(config-ospf-router)# area 1.1.1.1 nssa 1
Configuring a summary-address for the NSSA
If you want the ABR that connects the NSSA to other areas to summarize the routes in the NSSA before translating them into type 5
LSAs and flooding them into the other areas, configure an address range summary-address. The ABR creates an aggregate value based
on the address range. The aggregate value becomes the address that the ABR advertises instead of advertising the individual addresses
represented by the aggregate. You can configure up to 32 ranges in an OSPFv2 area.
1. Enter the configure terminal command to access global configuration mode.
device# configure terminal
2. Enter the router ospf command to enter OSPF router configuration mode and enable OSPFv2 on the device.
device(config)# router ospf
3. Enter the area nssa command, specifying an area and a cost.
device(config-ospf-router)# area 1.1.1.1 nssa 10
4. Enter the summary-address command, followed by the IP address and mask for the summary route.
device(config-ospf-router)# summary-address 10.10.1.0 10.10.2.0
Configuring OSPFv2
Brocade FastIron Layer 3 Routing Configuration Guide
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