An ospfIfStateChange trap signifies that there has been a change in the state of a non-virtual OSPF interface. This trap should be generated when the interface state regresses (e.g., goes from Dr to Down) or progresses to a terminal state (i.e., Point-to-Point, DR Other, Dr, or Backup).
1.3.6.1.2.1.14.16.2.16
Trap : ospfIfStateChange Objects : { ospfRouterId, ospfIfIpAddress, ospfAddressLessIf, ospfIfState } OID : "1.3.6.1.2.1.14.16.2.16" object : ospfIfState type : INTEGER object : ospfAddressLessIf type : Integer32 object : ospfIfIpAddress type : IpAddress object : ospfRouterId type : RouterID