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Configuring Virtual Links for OSPFv3

Virtual links can connect discontiguous sections of the OSPF backbone Area 0 or extend backbone access to areas not directly adjacent to Area 0 (a requirement of the OSPF protocol). To configure a virtual link, configure the virtual-link statement at the [edit protocols ospf3 area 0] hierarchy level. In the statement, specify the router ID of your neighbor (often the loopback interface IP address) and the OSPFv3 area that the virtual link travels across to reach Area 0.