Reference Guide

OSPF Commands 1225
Default Configuration
No area ranges are configured by default. No cost is configured by default.
Command Mode
OSPFv2 Router Configuration mode
User Guidelines
The no form of this command can be used to delete an area range. For
example:
!! Create area range
summarylink When this keyword is given, the area range is used when
summarizing prefixes advertised in type 3 summary LSAs.
nssaexternallink When this keyword is given, the area range is used when
translating type 7 LSAs to type 5 LSAs.
advertise [Optional] When this keyword is given, the summary prefix is
advertised when the area range is active. This is the default.
not-advertise [Optional] When this keyword is given, neither the summary
prefix nor the contained prefixes are advertised when the area
range is active. Then the not-advertise option is given, any
static cost previously configured is removed from the system
configuration.
cost [Optional] If an optional cost is given, OSPF sets the metric
field in the summary LSA to the configured value, rather than
setting the metric to the largest cost among the networks
covered by the area range. A static cost may only be configured
if the area range is configured to advertise the summary. The
range is 0 to 16,777,215. If the cost is set to 16,777,215 for type
3 summarization, a type 3 summary LSA is not advertised, but
contained networks are suppressed. This behavior is equivalent
to specifying the not-advertise option. If the range is configured
for type 7 to type 5 translation, a type 5 LSA is sent if the metric
is set to 16,777,215; however, other routers will not compute a
route from a type 5 LSA with this metric.
Parameter Description
2CSPC4.XModular-SWUM204.book Page 1225 Friday, March 15, 2013 9:24 AM