All MIBs › RADLAN-HWENVIROMENT
Organization: Radlan Computer Communications Ltd.
Last Updated: 2003-09-21
Category: Vendor: RADLAN/Cisco SB
Description: Monitors hardware environment sensors including temperature, fan speed, and voltage thresholds.
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What Is RADLAN-HWENVIROMENT?
RADLAN-HWENVIROMENT is a vendor-specific private MIB from RADLAN/Marvell dedicated to environmental hardware monitoring on switch platforms. It defines tables for fan status and power supply status, each carrying a per-unit index, description, and operational state, plus a physical description scalar for the overall chassis. Its purpose is squarely hardware health monitoring: tracking whether cooling fans and power supplies are operating normally, failed, or absent, which directly signals imminent hardware failure risk from overheating or power loss. It is a proprietary module rather than a standards-based one, though it parallels the function of Cisco's or the IETF's environmental monitoring MIB concepts. The RADLAN-HWENVIROMENT MIB is typically deployed on RADLAN/Marvell-based managed switches, especially fixed and modular chassis models with redundant fans and power supplies, monitored by an NMS for facility/hardware alerting.
IPNetwork Monitor allows you to monitor SNMP objects defined in RADLAN-HWENVIROMENT. 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
- RADLAN/Marvell-based managed Ethernet switches (chassis/modular models with redundant fans and PSUs)
Monitoring Examples
An operator would poll rlEnvMonFanStatusTable/rlEnvMonFanStatusEntry (rlEnvMonFanState, rlEnvMonFanStatusDescr) and rlEnvMonSupplyStatusTable/rlEnvMonSupplyStatusEntry (rlEnvMonSupplyState, rlEnvMonSupplySource) to check the health of each cooling fan and power supply unit in the chassis. An rlEnvMonFanState reporting a failed state, or rlEnvMonSupplyState showing a power supply has dropped from redundant to failed, would trigger an urgent hardware replacement alert before thermal or power issues cause an outage.
What Can Be Monitored
- fan operational status per unit
- fan description/identity
- power supply operational status per unit
- power supply source (AC/DC/redundant)
- chassis physical description
Imported Objects
From RADLAN-MIB
| rnd | OBJECT-IDENTITY |
From SNMPv2-SMI
| MODULE-IDENTITY | |
| OBJECT-TYPE |
From SNMPv2-TC
| TEXTUAL-CONVENTION |
From SNMPv2-TC-v1
| DisplayString |
OIDs
FAQ
How would RADLAN-HWENVIROMENT alert me to a failing fan or power supply on a RADLAN-based switch?
It defines fan status and power supply status tables, each with a per-unit index, description, and operational state, so an NMS polling these tables can flag a fan or PSU reporting failed or absent instead of normal, signaling an overheating or power-loss risk before it causes an outage.
What's the difference between what RADLAN-HWENVIROMENT tracks per fan/PSU versus the chassis overall?
Fan and power supply status are tracked per unit, each with its own description and operational state, while a separate physical description scalar covers the overall chassis, giving both individual component health and general chassis identification in one module.
RFC description
Radlan (now Cambrionix) vendor-private MIB for hardware environmental monitoring.
Start monitoring RADLAN/Marvell-based managed Ethernet switches, chassis/modular models with redundant fans and PSUs (environmental monitoring) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.