This notification is generated when a mplsTunnelOperStatus object for one of the configured tunnels is about to enter the down state from some other state (but not from the notPresent state). This other state is indicated by the included value of mplsTunnelOperStatus.
1.3.6.1.2.1.10.166.3.0.2
Trap : mplsTunnelDown
Objects : { mplsTunnelAdminStatus, mplsTunnelOperStatus }
OID : "1.3.6.1.2.1.10.166.3.0.2"
object : mplsTunnelOperStatus type : INTEGER
object : mplsTunnelAdminStatus type : INTEGER