Brocade Network OS Administrator’s Guide v4.1.1 - Manual (Page 592)

Router A# configure
Router A(config) # interface vlan 1001
Router A(config-Vlan-1001) # rbridge 10
Router A(config-rbridge-id-10) # interface Ve 1001
Router A(config-Ve-1001 )# ip address 101.1.1.1/24
Router A(config-Ve-1001) # ip ospf area 0.0.0.0
Configuring an NSSA
To configure OSPF area 1.1.1.1 as an NSSA, do the following:
1. In privileged EXEC mode, enter the configure command to enter global configuration mode.
2. Enter the rbridge-id command followed by the RBridge ID to enter RBridge configuration mode.
3. Enter the router ospf command to enable OSPF on the router.
4. Enter area followed by the area ID, then nssa followed by the NSSA ID.
switch# configure
switch(config)# rbridge-id 101
switch(config-rbridge-id-101)# router ospf
Switch(config-router-ospf-vrf-default-vrf)# 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 a
summary-address. The ABR creates an aggregate value based on the summary-address. 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 OSPF area.
To configure a summary-address in NSSA 1.1.1.1 (this example assumes that you have already
configured NSSA 1.1.1.1.), do the following:
1. In privileged EXEC mode, issue the configure command to enter global configuration mode.
2. Enter rbridge-id followed by the RBridge ID to enter RBridge configuration mode.
3. Enter router ospf to enable OSPF on the router and to enter router OSPF configuration mode.
4. Enter area followed by the area ID, then nssa followed by the NSSA ID.
5. Enter summary-address followed by the IP address and mask for the summary route.
switch# configure
switch(config)# rbridge-id 101
switch(config-rbridge-id-101)# router ospf
switch(config-router-ospf-vrf-default-vrf)# area 1.1.1.1 nssa 10
switch(config-router-ospf-vrf-default-vrf)# summary-address 209.157.1.0
255.255.255.0
Disabling summary LSAs for a stub area
To disable summary LSAs for a stub area, enter a command such as the following:
switch(config-router-ospf-vrf-default-vrf)area 40 stub 99 no-summary
Assigning an area range (optional)
You can assign a range for an area, but it is not required. Ranges allow a specific IP address and
mask to represent a range of IP addresses within an area, so that only that reference range address is
advertised to the network, instead of all the addresses within that range. Each area can have up to 32
Configuring an NSSA
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