View or delete OSPF neighbors to control OSPF operations.
Change the VRF instance as required to configure OSPF on a specific VRF instance. The VRF must have an RP trigger of OSPF. Not all parameters are configurable on non-default VRFs.
The OSPF Hello protocol initiates and maintains neighbor relationships. The exception is that, in an NBMA network, you must manually configure permanent neighbors on each router eligible to become the DR. You can add neighbors for NBMA interfaces, but all other neighbors are dynamically learned.