Description:
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propertyModuleIdentity MODULE-IDENTITY
LAST-UPDATED "200403290000Z" -- March 29, 2004
ORGANIZATION "SCTE HMS Working Group"
CONTACT-INFO
"Hung Nguyen,
SCTE HMS Subcommittee, Chairman
Time Warner Cable
mailto:standards@scte.org"
DESCRIPTION
"This MIB contains information that must be supported by all HMS
network elements, including but not limited to, transponders,
line monitors, amplifiers, fiber nodes, and power supplies.
The Property MIB defines the 'properties' that may be associated with
each parameter. This MIB is defined so that 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.
Each property entry has four alarm threshold levels that may be established.
These are:
LOLO Alarm threshold for the extreme low condition.
LO Alarm threshold for the low condition.
HI Alarm threshold for the high condition.
HIHI Alarm threshold for the extreme high condition.
In addition, there is a 'Deadband' setting which applies to all alarm thresholds.
After an alarm occurs, the parameter value must pass back over the alarm threshold
by this amount for the alarm condition to be cleared. This Deadband 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 alarmEnable
variable for the entry. Alarm detection is active when the corresponding bit 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 HMS023Rx.MIB ) and an alarmEvent SNMP trap sent
by the transponder/agent.
NOTE
Parameters which do not 'exist' must NOT have properties that are accessible. For example, in
the HMS027 MIB (SCTE 38-4), the MIB object psOutputPowerSupport indicates whether or not the
power supply supports the psPowerOut object. If the psPowerOut 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 bad value error."
REVISION "200403290000Z" -- March 29, 2004
DESCRIPTION
"1. SCTE-HMS-PROPERTY-MIB MIB module converted to SMIv2 syntax so
as to define MODULE-COMPLIANCE groups. These groups need to be referred
to by other MIB modules such as those defined by HMS Indoor Optics.
The publishing of this MIB in SMIv2 does not imply the agent implementation
must use a particular version of SNMP (the SNMP agent could communicate
using SNMPv1, v2c or v3).
2. Clarification made in the DESCRIPTION clause on usage of the MIB
variable currentAlarmOID.
This version published as 'HMS026R16.mib' (SCTE 38-1)
This version obsoletes 'HMS026R14.mib' ."
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iso(1)
propertyMIBConformance(1) 
