Fortinet FortiSwitch-548B v. 5.2.0.2 Administration Manual page 449

8.3.2.5 1583compatibility
1583 compatibility mode is enabled by default. If all OSPF routers in the routing domain are capable of
operating according to RFC 2328, OSPF 1583 compatibility mode should be disabled.
1583compatibility command enables OSPF 1583 compatibility. no 1583compatibility command
disables OSPF 1583 compatibility
Syntax
1583compatibility
no 1583compatibility
Default Setting
Enabled
Command Mode
Router OSPF Config Mode
8.3.2.6 area default-cost
This command configures the default cost for the stub area. You must specify the area ID and an integer
value between 1-16777215
Syntax
area <areaid> default-cost <1-16777215>
Default Setting
None
Command Mode
Router OSPF Config Mode
8.3.2.7 area nssa
area nssa command configures the specified areaid to function as an NSSA. no area nssa command
disables nssa from the specified area id.
Syntax
area <areaid> nssa
no area <areaid> nssa
Default Setting
None
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