COM21-HCXTOP-MIB :: hcxSerialNumber

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCOM21-HCXTOP-MIBhcxSerialNumber

hcxSerialNumber

Module: COM21-HCXTOP-MIB

OID (symbolic): COM21-HCXTOP-MIB::hcxSerialNumber

OID (numeric): 1.3.6.1.4.1.1141.2.2.6

Node type: OBJECT-TYPE

Type: DisplayString

Access: read-only

Description: The Serial Number is a 32 character number used by COM21 to uniquely identify the device.

What is hcxSerialNumber?

This read-only 32-character DisplayString is the serial number COM21 uses to uniquely identify this ComController, notably longer than the 10-character format used for individual STUs. It's the reference an admin uses when opening a support case or RMA specifically for the headend chassis hardware. For example, when reporting a hardware fault on the headend itself rather than a subscriber's STU, support would quote hcxSerialNumber to identify the exact controller unit.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1141.2.2.6
snmpwalk -v2c -c public <target> COM21-HCXTOP-MIB::hcxSerialNumber

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1141.2.2.6.1
snmpget -v2c -c public <target> COM21-HCXTOP-MIB::hcxSerialNumber.1

Start monitoring Com21 ComController HCX unit control/topology (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the COM21-HCXTOP-MIB::hcxSerialNumber OID value, configure state conditions and alerts, and monitor any Com21 ComController HCX unit control/topology (legacy) 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
1.3.6.1.4.1.1141com21COM21-HCX-MIB
1.3.6.1.4.1.1141.2com21HcxCOM21-HCX-MIB
Numeric OIDNameModule
1.3.6.1.4.1.1141.2.2com21HcxControlGroupCOM21-HCXTOP-MIB
1.3.6.1.4.1.1141.2.2.6hcxSerialNumberCOM21-HCXTOP-MIB