
Customizing OSPF Services
308627-14.20 Rev 00
6-53
For example, the following command sequence:
• Configures area 0.0.0.1 as an NSSA
• Enables the origination of a type 7 default route by an AS boundary router
• Enables the translation of type 7 default route LSAs for flooding to all
non-stub areas
• Specifies the path type of the default route for type 7 AS external LSAs
• Enables the forced translation of type 7 AS external LSAs to type 5 LSAs by
an NSSA border router
• Assigns a metric value of 2 to the type 3 or type 7 default route
• Specifies that no summary advertisements are imported to the NSSA
Table 6-8. BCC Parameters for OSPF NSSA
Parameter Value Function
import-summaries true (default)
false
Specifies whether summary
advertisements are imported into the NSSA
nssa-default-ase-path type1 (default)
type2
Specifies the path type of the default route
for type 7 AS external LSAs
nssa-default-originate disabled (default)
enabled
Enables or disables the origination of a type
7 default route by an AS boundary router
nssa-default-propagate disabled (default)
enabled
Enables or disables the translation of type 7
default route LSAs to type 5 default route
LSAs and flooding to all non-stub areas
nssa-translate-to-5 disabled (default)
enabled
Enables or disables the forced translation of
type 7 AS external LSAs to type 5 LSAs by
an NSSA border router
stub-metric 1 (default) to
16777215
Assigns a metric value to the type 3 or type
7 default route
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