This attribute displays the Local Management Interface network
side procedure event history in order of occurrence. An event is
represented by a single symbol. A '+' symbol indicates a good
event. An 'X' symbol indicates a protocol error event. The leftmost
event is the most recent to occur. The provisioned eventCount (nN3/
N393) dictates the maximum number of events displayed. A good
event is triggered by receipt of a valid status enquiry message. An
error event is one of three possibilities, either a nT2/T392 timer
expiry, receipt of a status enquiry message with bad sequence
numbers, or when lmiProcedures is provisioned to vendorForum
and we receive more than nN4 status enquiry messages within the
provisioned messageCountTimer (nT3).