protocols ospf6 area <area-id1> virtual-link <router-id> transmit-area

Thesinglebackbone area (area 0.0.0.0) cannot be disconnected,or certain areas of the Autonomous System will become unreachable. To establish and maintain connectivity of the backbone, virtual links can be configured through non-backbone areas. Virtual links serve to connect physically separate components of the backbone.

Command Syntax
set protocols ospf6 area <area-id1> virtual-link <router-id> transmit-area <area-id2>

Parameter
• <area-id1>   The OSPF area to which the attached network belongs.
• <router-id>  A unique 32-bit identifier within this AS.
• <area-id2>  Area through which to transmit.

Example
This example configurethe virtual link on the Area Border Router switch B(4.4.4.4) and Switch C(3.3.3.3), After this step, there will be aroute entry from the backbone area, 0.0.0.0, to area 2.2.2.2.

admin@XorPlus# set protocols ospf6 area 0.0.0.0 virtual-link 4.4.4.4 transmit-area 1.1.1.1
admin@XorPlus# commit
admin@XorPlus# set protocols ospf6 area 0.0.0.0 virtual-link 3.3.3.3 transmit-area 1.1.1.1
admin@XorPlus# commit