Alcatel-Lucent 7750 SR OS Service Manual page 1091

This parameter is particularly useful to reduce the size of the routing and Link State Database (LSDB)
tables within the stub or nssa area.
By default, summary route advertisements are sent into the stub area or NSSA.
The no form of the command disables sending summary route advertisements and, for stub areas,
only the default route is advertised by the ABR.
Default
summaries — Summary routes are advertised by the ABR into the stub area or NSSA.
stub
Syntax [no] stub
Context config>service>vprn>ospf>area
Description
This command enables access to the context to configure an OSPF stub area and adds/removes the
stub designation from the area.
External routing information is not flooded into stub areas. All routers in the stub area must be
configured with the stub command. An OSPF area cannot be both an NSSA and a stub area.
Existing virtual links of a non STUB or NSSA area will be removed when its designation is changed
to NSSA or STUB.
By default, an area is not a stub area.
The no form of the command removes the stub designation and configuration context from the area.
Default
no stub — The area is not configured as a stub area.
default-metric
Syntax default-metric metric
no default-metric
Context config>service>vprn>ospf>area>stub
Description
This command configures the metric used by the area border router (ABR) for the default route into a
stub area.
The default metric should only be configured on an ABR of a stub area.
An ABR generates a default route if the area is a stub area.
The no form of the command reverts to the default value.
Default
default-metric 1
Parameters
metric — The metric expressed as a decimal integer for the default route cost to be advertised into the
7750 SR OS Services Guide
stub area.
Values
1 — 16777215
Virtual Private Routed Network Services
Page 1091