ANSI SCTE 84-1-2017 pdf download.HMS Common Inside Plant Management Information Base (MIB)
This document is identical to SCTE 84-1 2009 except for informative components which may have been updated such as the title page, NOTICE text, headers and footers. No normative changes have been made to this document. The MIB module is for representing general information about optical equipment present in the headend (or indoor) and is supported by an SNMP agent.
The detectionDisabled(1) value prevents the threshold detection process associated with the property table and discrete property table from running. The headend entity shall not generate alarms. The contents of the heCommonLogTable, currentAlarmTable, each instance of discreteAlarmState, and each instance of currentAlarmState shall remain in the state prior to detectionDisabled(1) being applied. The detectionEnabled(2) value permits alarm detection to run. The detection process continues from the state the headend entity was in prior to detectionEnabled(2) being set. The detectionEnabledAndRegenerate(3) value clears all alarm information and permits alarm detection to run. All alarm properties, both discrete and analog, are restored to the nominal value before alarm detection runs. Any properties that are in an alarm state SHALL NOT produce a ‘return to normal’ alarm as part of the process. Setting this value clears the heCommonLogTable and the currentAlarmTable. The detectionEnabledAndRegenerate(3) value is transient, that is a SET request with a value detectionEnabledAndRegnerate(3) shall return the same value detectionEnabledAndRegnerate(3). Subsequent GET requests shall return a value detectionEnabled(2). The detectionDisabled(1) value shall affect the generation of heCommonAlarmEvent trap only. Traps added in the future are assumed to be unaffected by this object, unless stated in the description of that trap.
“The current number of entries in the heCommonLogTable. Before the very first wrap-around condition occurs for heCommonLogIndex, heCommonLogNumberOfEntries will return the total number of entries logged in heCommonLogTable, since the unit was powered up. After the first wrap-around condition has occured for for the value of the MIB variable heCommonLogIndex, heCommonLogNumberOfEntries will return the maximum number of rows the heCommonLogTable can hold.ANSI SCTE 84-1-2017 pdf download
