CTRON-ENVIRONMENT-MIB :: chEnvNumFans

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › CTRON-ENVIRONMENT-MIB › chEnvNumFans

chEnvNumFans

Module: CTRON-ENVIRONMENT-MIB

OID (symbolic): CTRON-ENVIRONMENT-MIB::chEnvNumFans

OID (numeric): 1.3.6.1.4.1.52.4.1.1.8.1.11

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: Number of fans in a chassis.

What is chEnvNumFans?

This is the total count of cooling fans physically present in this chassis. It establishes how many fan-status entries an admin should expect to see reported elsewhere in this MIB. For example, a chassis reporting 6 fans tells the admin to expect six corresponding fan status rows, and any missing row indicates a fan tray that was removed or not detected.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.52.4.1.1.8.1.11
snmpwalk -v2c -c public <target> CTRON-ENVIRONMENT-MIB::chEnvNumFans

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.52.4.1.1.8.1.11.1
snmpget -v2c -c public <target> CTRON-ENVIRONMENT-MIB::chEnvNumFans.1

Start monitoring Cabletron/Enterasys modular chassis switch/router/hub (environmental sensors) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CTRON-ENVIRONMENT-MIB::chEnvNumFans OID value, configure state conditions and alerts, and monitor any Cabletron/Enterasys modular chassis switch/router/hub (environmental sensors) from a single console.

OID Breakdown

Upper-level ancestors (11 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
1.3.6.1.4.1.52cabletronCabletron-MIB
1.3.6.1.4.1.52.4mibsCT-PRIORITY-QUEUING
1.3.6.1.4.1.52.4.1ctronCTRON-MIB-NAMES
1.3.6.1.4.1.52.4.1.1ctPhysicalCTRON-MIB-NAMES
1.3.6.1.4.1.52.4.1.1.8ctenvCTRON-MIB-NAMES
Numeric OIDNameModule
1.3.6.1.4.1.52.4.1.1.8.1chEnvCTRON-ENVIRONMENT-MIB
1.3.6.1.4.1.52.4.1.1.8.1.11chEnvNumFansCTRON-ENVIRONMENT-MIB