H221-MIB :: h221InFrames

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › H221-MIB › h221InFrames

h221InFrames

Module: H221-MIB

OID (symbolic): H221-MIB::h221InFrames

OID (numeric): 1.3.6.1.3.221.2.1.1

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The number of H.221 frames received

What is h221InFrames?

This object counts the total number of H.221 framing-protocol frames received on this interface. An admin monitors this counter to confirm that H.221-framed traffic, typically used in videoconferencing over ISDN-style links, is actually arriving on the interface as expected. For example, a steadily increasing h221InFrames count during an active video call confirms the H.221 framing layer is receiving data normally.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.3.221.2.1.1
snmpwalk -v2c -c public <target> H221-MIB::h221InFrames

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.3.221.2.1.1.1
snmpget -v2c -c public <target> H221-MIB::h221InFrames.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> h221InFrames.1

Start monitoring VTEL videoconferencing codecs/endpoints with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the H221-MIB::h221InFrames OID value, configure state conditions and alerts, and monitor any VTEL videoconferencing codecs/endpoints from a single console.

OID Breakdown

Upper-level ancestors (5 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.3experimentalAPERTUS-NPG-MIB
Numeric OIDNameModule
1.3.6.1.3.221.2h221MIBH221-MIB
1.3.6.1.3.221.2.1h221StatsH221-MIB
1.3.6.1.3.221.2.1.1h221InFramesH221-MIB