Configure Ospf Area Nssa Stub-Default-Cost - Extreme Networks ExtremeWare XOS Command Reference Manual

ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.

configure ospf area nssa stub-default-cost

configure ospf area <area-identifier> nssa [summary | nosummary] stub-
default-cost <cost> {translate}
Description
Configures an OSPF area as an NSSA.
Syntax Description
area-identifier
summary
nosummary
cost
translate
Default
N/A.
Usage Guidelines
NSSAs are similar to the existing OSPF stub area configuration option, but have the following two
additional capabilities:
External routes originating from an ASBR connected to the NSSA can be advertised within the
●
NSSA.
External routes originating from the NSSA can be propagated to other areas, including the backbone
●
area, if translated to type 5 LSAs.
When configuring an OSPF area as an NSSA, the translate option should only be used on NSSA border
routers, where translation is to be enforced. If translate is not used on any NSSA border router in a
NSSA, one of the ABRs for that NSSA is elected to perform translation (as indicated in the NSSA
specification). The option should not be used on NSSA internal routers. Doing so inhibits correct
operation of the election algorithm.
Example
The following command configures an OSPF area as an NSSA:
configure ospf area 10.1.1.0 nssa summary stub-default-cost 10 translate
History
This command was first available in ExtremeWare XOS 10.1.
ExtremeWare XOS 11.5 Command Reference Guide
Specifies an OSPF area.
Specifies that type-3 can be propagated into the area.
Specifies that type-3 cannot be propagated into the area.
Specifies a cost metric.
Specifies whether type-7 LSAs are translated into type-5 LSAs.
configure ospf area nssa stub-default-cost
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