COM21-HCXRX-MIB :: hcxUpstreamBootVersion

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCOM21-HCXRX-MIBhcxUpstreamBootVersion

hcxUpstreamBootVersion

Module: COM21-HCXRX-MIB

OID (symbolic): COM21-HCXRX-MIB::hcxUpstreamBootVersion

OID (numeric): 1.3.6.1.4.1.1141.2.33.1.1.4

Node type: OBJECT-TYPE

Type: DisplayString

Access: read-only

Description: contains the version of the RX card boot ROM. This will be an empty string if card is missing.

What is hcxUpstreamBootVersion?

This read-only DisplayString of up to 16 characters holds the version of the RX card's boot ROM, returning an empty string when the card is missing from its slot. It gives an admin a quick way to audit boot-loader firmware levels across upstream cards without opening a console session on each one. For example, after a boot ROM update campaign, an admin scans hcxUpstreamBootVersion on every RX card to verify none were skipped.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1141.2.33.1.1.4
snmpwalk -v2c -c public <target> COM21-HCXRX-MIB::hcxUpstreamBootVersion

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1141.2.33.1.1.4.1
snmpget -v2c -c public <target> COM21-HCXRX-MIB::hcxUpstreamBootVersion.1

Start monitoring Com21 ComController HCX downstream RX card (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the COM21-HCXRX-MIB::hcxUpstreamBootVersion OID value, configure state conditions and alerts, and monitor any Com21 ComController HCX downstream RX 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
1.3.6.1.4.1.1141.2.33com21HcxUpstrmUnitGroupCOM21-HCXRX-MIB
1.3.6.1.4.1.1141.2.33.1com21HcxUpstrmUnitTableCOM21-HCXRX-MIB
1.3.6.1.4.1.1141.2.33.1.1com21HcxUpstrmUnitEntryCOM21-HCXRX-MIB
1.3.6.1.4.1.1141.2.33.1.1.4hcxUpstreamBootVersionCOM21-HCXRX-MIB