OSPF where do you configure a virtual link

A virtual link in OSPF is created in order to connect a non-backbone OSPF area to the backbone area in cases where the non-backbone area is not directly connected to the backbone via a single ABR. Some concepts to keep in mind:

  • The virtual link is created between ABRs
  • The virtual link connects the control plane only. It does not carry user traffic.

OSPF Discontiguous Area 0