# ospfv3Neighbor

#### Description

OSPFv3 neighbor change

#### Emergency

None

#### Alert

None

#### Critical

None

#### Error

Neighbor MTU negotiation rejects

#### Warning Log

Flooding event errors; neighbor transition from Full state to Down state; invalid neighbor LSA requests; neighbor MTU negotiation mismatches; disregarding graceful restart notification (when graceful restart helper mode is not configured and the router gets a Grace LSA from a neighbor); aborting graceful restart due to time out (when the Grace LSA expires before the neighbor exited graceful restart); aborting graceful restart help due to topology change

#### Notice Log

Database description neighbor exchange; neighbor state changes; neighbor retransmissions

#### Info

None

#### Debug

Router exits graceful restart; helping router with graceful restart

#### Filter 1

neighbor—See description of the ospfLsa neighbor filter for information about this filter

#### Filter 2

router—See description of the ospfLsa router filter for information about this filter