NMS520-MIB :: nms520AlarmHystTime

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

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nms520AlarmHystTime

Module: NMS520-MIB

OID (symbolic): NMS520-MIB::nms520AlarmHystTime

OID (numeric): 1.3.6.1.4.1.498.8.2.2.1.4

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: The Alarm hysterysis time nms520AlarmHystTime, is used to control the amount of time a remote must wait between reporting unsolicited alarm conditions. A remote will send an unsolicited alarm response at the time of the first alarm. If second alarm occurs the remote will wait for the time specified by this object before it will send another alarm response. This time applies for both point to point and multipoint applications. The range is from 1 second to 127 seconds, with 10 seconds being the default value.

What is nms520AlarmHystTime?

Sets the minimum wait, in seconds (1-127, default 10), a remote must observe between successive unsolicited alarm reports after the first one, applying to both point-to-point and multipoint setups, to avoid flooding the management link with repeat alarms.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.498.8.2.2.1.4
snmpwalk -v2c -c public <target> NMS520-MIB::nms520AlarmHystTime

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.498.8.2.2.1.4.1
snmpget -v2c -c public <target> NMS520-MIB::nms520AlarmHystTime.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.498.8.2.2.1.4.1 i <value>

Start monitoring General DataComm (GDC) NMS520 DDS DSU/CSU unit with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the NMS520-MIB::nms520AlarmHystTime OID value, configure state conditions and alerts, and monitor any General DataComm (GDC) NMS520 DDS DSU/CSU unit from a single console.

OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.498gdcDMA200-MIB
1.3.6.1.4.1.498.8dsuDDS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.498.8.2nms520NMS520-MIB
1.3.6.1.4.1.498.8.2.2nms520UnitCfgTableNMS520-MIB
1.3.6.1.4.1.498.8.2.2.1nms520UnitCfgEntryNMS520-MIB
1.3.6.1.4.1.498.8.2.2.1.4nms520AlarmHystTimeNMS520-MIB