Alcatel-Lucent 7750 SR Manual page 1401

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
config>service>vprn>ospf3>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
virtual-link
Syntax [no] virtual-link router-id transit-area area-id
Context config>service>vprn>ospf>area
config>service>vprn>ospf3>area
Description
This command configures a virtual link to connect area border routers to the backbone via a virtual
link. The backbone area (area 0.0.0.0) must be contiguous and all other areas must be connected to
the backbone area. If it is not practical to connect an area to the backbone (see area 0.0.0.2 in the
picture below) then the area border routers (routers 1 and 2 in the picture below) must be connected
via a virtual link. The two area border routers will form a point-to-point like adjacency across the
transit area (area 0.0.0.1 in the picture below). A virtual link can only be configured while in the area
0.0.0.0 context.
The router-id specified in this command must be associated with the virtual neighbor. The transit area
cannot be a stub area or a Not So Stubby Area (NSSA).
The no form of the command deletes the virtual link.
Default No virtual link is defined.
Parameters
router-id — The router ID of the virtual neighbor in IP address dotted decimal notation.
transit-area area-id — The area-id specified identifies the transit area that links the backbone area
7750 SR OS Services Guide
stub area.
Values 1 — 16777215
with the area that has no physical connection with the backbone.
Virtual Private Routed Network Services
Page 1401