RBTWS-SYSTEM-MIB

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Organization: Enterasys Networks

Last Updated: 2007-08-23

Category: Wireless LAN

Description: Monitors system health, software versions, and operational statistics for Enterasys RoamAbout wireless LAN controllers.

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What Is RBTWS-SYSTEM-MIB?

RBTWS-SYSTEM-MIB is a system-health MIB from Enterasys Networks for its RoamAbout wireless LAN switches/controllers, covering general device status, software versions, and operational statistics. It exposes hardware and software resource-utilization data, particularly CPU and memory consumption on the wireless controller. It is explicitly aimed at monitoring hardware/software status: CPU load is tracked across multiple intervals -- instantaneous, last minute, last 5 minutes, last hour, last day, and last 3 days -- alongside flash and working-memory used/total byte counts, giving a detailed picture of controller resource pressure over time. It is a vendor-specific module for Enterasys wireless switches and is not described as formally importing from other standard MIBs, though it likely complements standard SNMPv2-MIB/HOST-RESOURCES-MIB style monitoring. It is deployed in enterprise WLAN environments using Enterasys/RoamAbout wireless switch controllers to watch for CPU or memory exhaustion that could degrade wireless service, and an RBTWS-SYSTEM-MIB download lets administrators load the module into their MIB browser to begin polling these objects.

IPNetwork Monitor allows you to monitor SNMP objects defined in RBTWS-SYSTEM-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

Enterasys RoamAbout wireless LAN controller/switch

Monitoring Examples

An administrator polls rbtwsSysCpuInstantLoad alongside rbtwsSysCpuLastMinuteLoad, rbtwsSysCpuLast5MinutesLoad, rbtwsSysCpuLastHourLoad, and rbtwsSysCpuLast3DaysLoad to trend CPU utilization over multiple windows and distinguish a sustained spike from a transient one. Comparing rbtwsSysCpuMemoryUsedBytes to rbtwsSysCpuMemoryTotalBytes, and rbtwsSysFlashMemoryUsedBytes to rbtwsSysFlashMemoryTotalBytes, reveals memory or flash storage nearing capacity -- a common precursor to controller instability or failed firmware updates on wireless switches under heavy client load.

What Can Be Monitored

CPU load (instant, 1-min, 5-min, hourly, daily, 3-day averages)
system memory used/total bytes
flash memory used/total bytes
detailed system CPU load breakdown

Imported Objects

From RBTWS-ROOT-MIB

rbtwsMibs

OBJECT-IDENTITY

From SNMPv2-SMI

MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION

OIDs

OID symbolic	OID numeric	Type	Access	Description
rbtwsSystemMib	1.3.6.1.4.1.52.4.15.1.4.8			System objects for Enterasys Networks wireless switches. Copyright 2007 Enterasys Networks, Inc. All rights reserved. This SNMP Management Information Base Specification (Specification) embodies confidential and proprietary intellectual property. This Specification is supplied 'AS IS' and Enterasys Networks makes no warranty, either express or implied, as to the use, operation, condition, or performance of the Specification.
rbtwsSysObjects	1.3.6.1.4.1.52.4.15.1.4.8.1
rbtwsSysDataObjects	1.3.6.1.4.1.52.4.15.1.4.8.1.1
U32 rbtwsSysCpuMemoryUsedBytes	1.3.6.1.4.1.52.4.15.1.4.8.1.1.1	Unsigned32	read-only	CPU memory used in bytes. Obsoleted by rbtwsSysCpuMemoryInstantUsage.
U32 rbtwsSysCpuMemoryTotalBytes	1.3.6.1.4.1.52.4.15.1.4.8.1.1.2	Unsigned32	read-only	CPU total physical memory in bytes. Obsoleted by rbtwsSysCpuMemorySize.
U32 rbtwsSysFlashMemoryUsedBytes	1.3.6.1.4.1.52.4.15.1.4.8.1.1.3	Unsigned32	read-only	Flash memory used in bytes.
U32 rbtwsSysFlashMemoryTotalBytes	1.3.6.1.4.1.52.4.15.1.4.8.1.1.4	Unsigned32	read-only	Flash memory available in bytes.
RBT rbtwsSysCpuAverageLoad	1.3.6.1.4.1.52.4.15.1.4.8.1.1.5	RbtwsSysCpuLoad	read-only	CPU load average since system startup.
RBT rbtwsSysCpuMemorySize	1.3.6.1.4.1.52.4.15.1.4.8.1.1.6	RbtwsSysMemoryAmount	read-only	Maximum available CPU Memory (RAM) in KBytes. This is the memory available to the Wireless Switch software. May be less than physical RAM size.
rbtwsSysCpuLoadDetail	1.3.6.1.4.1.52.4.15.1.4.8.1.1.11
RBT rbtwsSysCpuInstantLoad	1.3.6.1.4.1.52.4.15.1.4.8.1.1.11.1	RbtwsSysCpuLoad	read-only	CPU instant load (for last few seconds).
RBT rbtwsSysCpuLastMinuteLoad	1.3.6.1.4.1.52.4.15.1.4.8.1.1.11.2	RbtwsSysCpuLoad	read-only	CPU load for last minute.
RBT rbtwsSysCpuLast5MinutesLoad	1.3.6.1.4.1.52.4.15.1.4.8.1.1.11.3	RbtwsSysCpuLoad	read-only	CPU load for last 5 minutes.
RBT rbtwsSysCpuLastHourLoad	1.3.6.1.4.1.52.4.15.1.4.8.1.1.11.4	RbtwsSysCpuLoad	read-only	CPU load for last hour.
RBT rbtwsSysCpuLastDayLoad	1.3.6.1.4.1.52.4.15.1.4.8.1.1.11.5	RbtwsSysCpuLoad	read-only	CPU load for last day.
RBT rbtwsSysCpuLast3DaysLoad	1.3.6.1.4.1.52.4.15.1.4.8.1.1.11.6	RbtwsSysCpuLoad	read-only	CPU load for last 3 days.
rbtwsSysCpuMemoryUsageDetail	1.3.6.1.4.1.52.4.15.1.4.8.1.1.12
RBT rbtwsSysCpuMemoryInstantUsage	1.3.6.1.4.1.52.4.15.1.4.8.1.1.12.1	RbtwsSysMemoryAmount	read-only	Instant memory usage (RAM) in KBytes (for last few seconds). Ranges between 0 and rbtwsSysCpuMemorySize.
RBT rbtwsSysCpuMemoryLastMinuteUsage	1.3.6.1.4.1.52.4.15.1.4.8.1.1.12.2	RbtwsSysMemoryAmount	read-only	Memory usage (RAM) for last minute in KBytes. Ranges between 0 and rbtwsSysCpuMemorySize.
RBT rbtwsSysCpuMemoryLast5MinutesUsage	1.3.6.1.4.1.52.4.15.1.4.8.1.1.12.3	RbtwsSysMemoryAmount	read-only	Memory usage (RAM) for last 5 minutes in KBytes. Ranges between 0 and rbtwsSysCpuMemorySize.
RBT rbtwsSysCpuMemoryLastHourUsage	1.3.6.1.4.1.52.4.15.1.4.8.1.1.12.4	RbtwsSysMemoryAmount	read-only	Memory usage (RAM) for last hour in KBytes. Ranges between 0 and rbtwsSysCpuMemorySize.
RBT rbtwsSysCpuMemoryLastDayUsage	1.3.6.1.4.1.52.4.15.1.4.8.1.1.12.5	RbtwsSysMemoryAmount	read-only	Memory usage (RAM) for last day in KBytes. Ranges between 0 and rbtwsSysCpuMemorySize.
RBT rbtwsSysCpuMemoryLast3DaysUsage	1.3.6.1.4.1.52.4.15.1.4.8.1.1.12.6	RbtwsSysMemoryAmount	read-only	Memory usage (RAM) for last 3 days in KBytes. Ranges between 0 and rbtwsSysCpuMemorySize.
rbtwsSysChassisComponents	1.3.6.1.4.1.52.4.15.1.4.8.1.1.13
rbtwsSysChasCompPowerSupplies	1.3.6.1.4.1.52.4.15.1.4.8.1.1.13.1
U32 rbtwsSysNumPowerSuppliesSupported	1.3.6.1.4.1.52.4.15.1.4.8.1.1.13.1.1	Unsigned32	read-only	The number of power supplies supported by the Wireless Switch. This is the upper limit of the number of entries in the power supply table, rbtwsSysPowerSupplyTable.
rbtwsSysPowerSupplyTable	1.3.6.1.4.1.52.4.15.1.4.8.1.1.13.1.2		not-accessible	Table of power supplies actually installed on the Wireless Switch.
rbtwsSysPowerSupplyEntry	1.3.6.1.4.1.52.4.15.1.4.8.1.1.13.1.2.1		not-accessible	An entry in the rbtwsSysPowerSupplyTable table.
OID rbtwsSysPowerSupplyDeviceOID	1.3.6.1.4.1.52.4.15.1.4.8.1.1.13.1.2.1.1	OBJECT IDENTIFIER	not-accessible	OID value used to identify this chassis component as indicated in Registration MIB.
RBT rbtwsSysPowerSupplyStatus	1.3.6.1.4.1.52.4.15.1.4.8.1.1.13.1.2.1.2	RbtwsSysPowerSupplyStatus	read-only	Status of the power supply.
STR rbtwsSysPowerSupplyDescr	1.3.6.1.4.1.52.4.15.1.4.8.1.1.13.1.2.1.3	DisplayString	read-only	A human interpretable description of this power supply, for example 'Left Power Supply'.

RFC description

Enterasys wireless switch system objects; provides CPU load, memory usage, and power supply status monitoring.

Start monitoring Enterasys RoamAbout wireless LAN controller/switch (CPU/memory resource utilization) 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.

Download RBTWS-SYSTEM-MIB

What Is RBTWS-SYSTEM-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description