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Cisco Catalyst Switch Manager User Guide
OL-4930-01
Chapter 11 Routing Management
OSPF Management Window
Area Tab
The Area tab of the OSPF Management dialog consists of a single area, Area Configuration. This area
describes OSPF NSSA and stub area configurations. The information for a particular area can be
displayed by selecting the desired area from the Areas list. When you select an area, the following
information is provided:
•
Area ID—Identifies a stub or NSSA area adjacent to the router. The identifier can be specified as
either a decimal value or as an IP address.
•
Area Type—Type of area. The type has the following values:
–
default—Not a stub or NSSA area.
–
stub—Information on external routes are not sent to stub areas.
–
nssa—Similar to a stub area but autonomous system external routes can be imported into the
area.
•
Auth. Type—Authentication type for the area. The authentication type must be the same for all routers
and access servers in an area. The authentication password for all OSPF routers on a network must be the
same if they are to communicate with each other using OSPF. The Authentication type has the
following values:
–
none—The area does not enforce any authentication.
–
simple—Simple password authentication is used.
–
md5—MD5 authentication is enabled for the area.
•
Def. Cost—Default cost for the area. Use this value only on an area border router attached to a stub
area. It provides a metric for the summary default route generated by the area border router into the stub
area.
•
NSSA Def. Info. Orig.—Generates a Type 7 default into the NSSA area. This argument takes effect only
on an NSSA area border router or an NSSA AS border router
.
•
NSSA No Redistrib.—Used when the router is a NSSA area border router and routes are to be imported
only into the normal areas, but not into the NSSA area.
•
Stub No Summary—Indicates that an area border router is sending summary link advertisements into
the stub area.
•
Remove Area—Removes an explicit NSSA or stub area configuration to the OSPF routing process.
The action can only be used on an area border router attached to a stub or NSSA area.
Содержание WS-C3550-12G
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