CHASSIS-MIB :: chasSonetMonitoring

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCHASSIS-MIBchasSonetMonitoring

chasSonetMonitoring

Module: CHASSIS-MIB

OID (symbolic): CHASSIS-MIB::chasSonetMonitoring

OID (numeric): 1.3.6.1.4.1.800.2.1.1.12

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: on(1) - Start Sonet Monitoring. If the image file (sec.img) is not loaded, this variable should be set to load it. off(2) - Stop Sonet Monitoring.

What is chasSonetMonitoring?

This object starts or stops SONET line monitoring on the chassis; per the description, setting it to on(1) will even trigger loading of the SONET monitoring image file (sec.img) if it isn't already loaded. An admin troubleshooting SONET-based WAN links, common on Xylan chassis with SONET interface modules, would enable this to begin collecting SONET-layer error statistics, and because it can trigger an image load, turning it on unexpectedly may briefly affect the module running that image. Setting chasSonetMonitoring to on(1) on a chassis with an installed SONET module would load sec.img if needed and begin surfacing SONET alarm/error counters for that module.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.800.2.1.1.12
snmpwalk -v2c -c public <target> CHASSIS-MIB::chasSonetMonitoring

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.800.2.1.1.12.1
snmpget -v2c -c public <target> CHASSIS-MIB::chasSonetMonitoring.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.800.2.1.1.12.1 i <value>

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OID Breakdown

Upper-level ancestors (9 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
1.3.6.1.4.1.800xylanXYLAN-BASE-MIB
1.3.6.1.4.1.800.2xylanArchXYLAN-BASE-MIB
1.3.6.1.4.1.800.2.1xylanChassisXYLAN-BASE-MIB
Numeric OIDNameModule
1.3.6.1.4.1.800.2.1.1chasInfoCHASSIS-MIB
1.3.6.1.4.1.800.2.1.1.12chasSonetMonitoringCHASSIS-MIB