All MIBs › H221-MIB
Organization: VTEL Corp.
Last Updated: 1998-05-25
Category: Domain: Telephony/VoIP
Description: VTEL H.221 MIB for managing ITU-T H.221 frame structure multiplexing in videoconferencing systems.
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What Is H221-MIB?
H221-MIB is a VTEL vendor MIB for managing devices implementing the ITU-T H.221 protocol, which defines the frame structure used to multiplex audio, video, data, and control channels over digital circuits in videoconferencing systems. It is expected to expose objects reflecting the H.221 multiplex frame's channel/sub-channel configuration and synchronization status for an active videoconferencing call. Its monitoring relevance centers on software/protocol status of the conferencing session -- specifically whether the H.221 frame is correctly synchronized and channels are properly multiplexed -- rather than general device hardware health such as temperature or power. It directly depends on and implements the ITU-T H.221 standard referenced in its module description. It is typically deployed on VTEL videoconferencing codecs/endpoints used in enterprise or institutional video conferencing systems from the era when H.221-based multiplexing was standard. Engineers can download the H221-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in H221-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- VTEL Corp. PC-based videoconferencing codecs/endpoints (H.221-based systems)
Monitoring Examples
No sample object or table names are provided for this module (sample_objects is empty), and the module description only states that it 'supports the functions of the IUT H.221 Protocol,' so a concrete polling scenario grounded in confirmed object names cannot be honestly given. Based on the H.221 standard's purpose, it plausibly exposes frame synchronization status and channel/sub-channel multiplex configuration, but this cannot be confirmed from the supplied data.
What Can Be Monitored
- H.221 frame synchronization status
- multiplexed channel configuration
Imported Objects
From SNMPv2-CONF
| MODULE-COMPLIANCE | |
| NOTIFICATION-GROUP | |
| OBJECT-GROUP |
From SNMPv2-SMI
| Counter32 | |
| MODULE-IDENTITY | |
| NOTIFICATION-TYPE | |
| OBJECT-TYPE | |
| experimental |
OIDs
RFC description
Provides statistics for H.221 frame-based multimedia communication protocol, tracking transmitted and received frames and error conditions.
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