This notification is generated when a receiving switch does not receive an expected number of autotopology frames on an MLT in a given time interval from the sending switch(es) on the other end of the MLT. Once notification has been sent, further notifications may be sent, but it is suggested these be at least 5 minutes apart. The ifAdminStatus object reflects the state of the port. The port may be partitioned by the switch or still be active depending on the detection algorithm's control parameters.