Optimizing The Cost To Reach A Range Of Ospf Routers Within An Area - Juniper IGP - CONFIGURATION GUIDE V11.1.X Configuration Manual

JUNOSe 11.0.x IP, IPv6, and IGP Configuration Guide
automatic-virtual-link
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Optimizing the Cost to Reach a Range of OSPF Routers Within an Area

OSPF automatically calculates a cost for an area based on the individual costs from
an area border router to each OSPF router within that area. The highest individual
cost is advertised by the area border router as the aggregate cost for routers in an
adjacent area to reach any router within the first area. Consider the topology shown
in Figure 17 on page 271.
270
Optimizing the Cost to Reach a Range of OSPF Routers Within an Area
Use the no version to remove the interface's transmit delay.
See area virtual-link transmit-delay
Use to enable an automatic virtual link configuration.
If this feature is enabled, then backbone connectivity is ensured by the automatic
creation of a virtual link between this backbone router that has an interface to
a common nonbackbone area and other backbone routers that have interfaces
to a common nonbackbone area.
Example
host1(config-router)#automatic-virtual-link
Use the no version to disable an automatic virtual link.
See automatic-virtual-link
Use to remove the specified area only if no OSPF interfaces are configured in
the area.
Example
host1(config-router)#no area 47.0.0.0
There is no affirmative version of this command; there is only a no version.
See no area