COM21-HCXOC3-MIB :: hcxOc3SerialNumber

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCOM21-HCXOC3-MIBhcxOc3SerialNumber

hcxOc3SerialNumber

Module: COM21-HCXOC3-MIB

OID (symbolic): COM21-HCXOC3-MIB::hcxOc3SerialNumber

OID (numeric): 1.3.6.1.4.1.1141.2.91.1.1.10

Node type: OBJECT-TYPE

Type: DisplayString

Access: read-only

Description: contains the serial number of the Oc3 card. Will contain empty string if card has not been inserted in the slot.

What is hcxOc3SerialNumber?

This read-only 16-character DisplayString reports the serial number of the OC-3 card, returning an empty string if no card is inserted in the slot. It gives an administrator a unique hardware identifier for asset tracking, warranty claims, or RMA processing on the optical line card. For example, when reporting a defective OC-3 card to the vendor, this serial number is what the operator would cite to identify the exact unit.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1141.2.91.1.1.10
snmpwalk -v2c -c public <target> COM21-HCXOC3-MIB::hcxOc3SerialNumber

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1141.2.91.1.1.10.1
snmpget -v2c -c public <target> COM21-HCXOC3-MIB::hcxOc3SerialNumber.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> hcxOc3SerialNumber.1

Start monitoring Com21 ComController HCX OC-3 ATM uplink card (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the COM21-HCXOC3-MIB::hcxOc3SerialNumber OID value, configure state conditions and alerts, and monitor any Com21 ComController HCX OC-3 ATM uplink card (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
1.3.6.1.4.1.1141.2.91com21HcxOc3UnitGroupCOM21-HCXOC3-MIB
1.3.6.1.4.1.1141.2.91.1com21HcxOc3UnitTableCOM21-HCXOC3-MIB
1.3.6.1.4.1.1141.2.91.1.1com21HcxOc3UnitEntryCOM21-HCXOC3-MIB
1.3.6.1.4.1.1141.2.91.1.1.10hcxOc3SerialNumberCOM21-HCXOC3-MIB