ANSI SCTE 38-1:2017 pdf download.Hybrid Fiber/Coax Outside Plant Status Monitoring-SCTE-HMS-PROPERTY-MIB-Management Information Base (MIB) Definition.
This document is identical to SCTE 38-1 2J9 except for informative comnents which may have been updated such as the title page, NOTICE text, headers and footers. No normative changes have been made to this document.
This document defines the “properties that may be associated with each parameter in HMS MIBs.
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The MIB definition found in this document may be incoqxrated directly in products without fuher permission from the copyright owner, SCTE.
NORMATIVE REFERENCE
IETFRFC 1155
SCTE37
INFORMATIVE REFERENCE
None
TERMS AND DEFINITIONS
This document defines the following terms:
Management Information Base (MIB) — the specification of information in a manner that allows standard access through a network management protocol.
REQUIREMENTS
This section defines the mandatory syntax of the SCTE-HMS-PROPERTY-MIB. It follows the IETF Simple Network
Management Protocol (SNMP) for defining the managed objects.
The syntax is given below.
DESCRWTION
“This MIB contains information that must be supported by all HMS network elements, including hut not limited to, transponders, line monhtoi, amplifiers, tibet nodes, and power supplies.
The Property MIB defines the ‘properties’ that may be associated with each parameter. This MIB is defined so thai these ‘properties may be applied to any parameter, because the index to the MIB is the object identifier of the parameter, The purpose of a ‘property’ is to provide a mechanism to manage alarm thresholds. It is not the responsibility of the transponder to check for violation of the above recommendations. The element manager is responsible for checking alarm limit values.
Entries in the property table are specifically for ‘analog’ parameters. The discrete property table is used to monitor other parameters.
In addition, there is a ‘Deadhand’ setting which applies to all alarm thresholds, Afier an alarm occurs, the parameter value must pass back over the alarm threshold by this amount for the alarm condition to he cleared, This Deadhand is smaller than the distance between any two alarm thresholds to avoid indeterminate states.
Alarm detection for each threshold is controlled by a specific bit in the alarniEnable variable for the entry. Alarm detection is active when the corresponding hit in alarmEnable is enabled,
When an alarm condition is detected, in either the propertyTable or the discretePropertyTable, an entry is created in the alarm log (see HMSO23Rx.MIB ) and an alarniEvent SNMP trap sent by the transponderf agent.
NOTE
Parameters which do not ‘exist’ must NOT have properties that are accessible. For example. in the HMSO27 MIB (SCFE 384), the MIB object psOutputPowerSupport indicates whether or not the power supply supports the psPowerOut object. If the psPoweiOut object is NOT supported, then the properties normally associated with the psPowerOut object must not be accessible.
Some devices only require 16 bit integer or smaller and therefore only support 16 bit (or smaller) values Values outside of the supported range will return a had value error.ANSI SCTE 38-1 pdf download.