A100-R1-MIB

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Category: Device Management, Vendor: 3Com

Description: Manages configuration and status objects for the 3Com A100 router platform, covering interfaces and routing parameters.

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What Is A100-R1-MIB?

A100-R1-MIB is a vendor-specific SNMP module for the 3Com A100 series router platform (a legacy 3Com/H3C router line), covering node-level interface and traffic-shaping configuration. It exposes objects for physical interface configuration (type, revision, admin/operational status) as well as node-wide operational status and buffer-management parameters. This MIB is explicitly useful for monitoring hardware health: nodeOperStatus reports overall device operational state, nodeFanStatus reports cooling-fan health, and nodeIfConfStatus reports per-interface up/down state, while nodeBestEffortBufferSize/Threshold and nodeGuaranteedBufferSize/nodeUpcWindowSize expose QoS buffer allocation used for traffic-shaping performance monitoring. It builds on standard interface-indexing conventions similar to IF-MIB but adds 3Com-specific node and buffer objects not found in RFC-standard MIBs. It would typically be deployed in enterprise WAN edge or core routing environments running legacy 3Com A100 hardware, polled by NMS platforms for basic health and interface-status dashboards. Engineers can download the A100-R1-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in A100-R1-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

Legacy NEC network node/router, referenced in-file only as 'Model 5' (enterprise OID 119)

Monitoring Examples

An administrator would poll nodeFanStatus and nodeOperStatus to detect a failed cooling fan or a node that has dropped to a degraded operational state before it causes an outage. Walking nodeIfConfTable (indexed by nodeIfConfIndex) surfaces per-interface nodeIfConfPhysType and nodeIfConfStatus, revealing which physical interfaces are administratively down or in error. Tracking nodeBestEffortBufferThreshold against nodeBestEffortBufferSize would show when best-effort traffic buffers are nearing exhaustion, an early indicator of congestion-related packet loss.

What Can Be Monitored

node operational status
fan health status
interface physical type and status
interface configuration revision
best-effort buffer utilization
guaranteed buffer size

Imported Objects

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

enterprises

From RFC1213-MIB

DisplayString

OIDs

OID symbolic	OID numeric	Type	Access	Description
nec	1.3.6.1.4.1.119
nec_mib	1.3.6.1.4.1.119.2
necProductDepend	1.3.6.1.4.1.119.2.3
atomis_mib	1.3.6.1.4.1.119.2.3.14
m5core_mib	1.3.6.1.4.1.119.2.3.14.3
node	1.3.6.1.4.1.119.2.3.14.3.1
INT nodeOperStatus	1.3.6.1.4.1.119.2.3.14.3.1.1	INTEGER	read-only	Operational status of the Model 5.
nodeIfConfTable	1.3.6.1.4.1.119.2.3.14.3.1.2		not-accessible	Configuration of the line cards.
nodeIfConfEntry	1.3.6.1.4.1.119.2.3.14.3.1.2.1		not-accessible	-
INT nodeIfConfIndex	1.3.6.1.4.1.119.2.3.14.3.1.2.1.1	INTEGER	read-only	The index of the table.
INT nodeIfConfPhysType	1.3.6.1.4.1.119.2.3.14.3.1.2.1.2	INTEGER	read-only	The PMD/physical layer format of the line cards.
STR nodeIfConfRev	1.3.6.1.4.1.119.2.3.14.3.1.2.1.3	DisplayString	read-only	The revision of the line cards. Implemented by JUL/1994.
INT nodeIfConfStatus	1.3.6.1.4.1.119.2.3.14.3.1.2.1.4	INTEGER	read-only	Operational status of the line cards.
INT nodeFanStatus	1.3.6.1.4.1.119.2.3.14.3.1.3	INTEGER	read-only	Operational status of the FAN.
INT nodeUpcWindowSize	1.3.6.1.4.1.119.2.3.14.3.1.4	INTEGER	read-write	UPC window size. Integer Wi represents Wi X 512 cell time. Wi=1 correspond to 1.4msec. Wi=120 correspond to 168msec. It is not allowed to change window size when the PVC is exsisting.
INT nodeBestEffortBufferSize	1.3.6.1.4.1.119.2.3.14.3.1.5	INTEGER	read-write	Input buffer capacity for Best Effort traffic(Bb). The number of cells stored in the buffer is Bb X 128. The default value is 0. The sum of the buffer capacity is 2047 cells.
INT nodeGuaranteedBufferSize	1.3.6.1.4.1.119.2.3.14.3.1.6	INTEGER	read-write	Input buffer capacity for Guaranteed traffic(Bg). The number of cells stored in the buffer is Bg X 128. The default value is 0. The sum of the buffer capacity is 2047 cells.
INT nodeBestEffortBufferThreshold	1.3.6.1.4.1.119.2.3.14.3.1.7	INTEGER	read-write	Threshold buffer capacity for Best Effort traffic. If the number of cells stored in the buffer exceeds this threshold, cells with CLP=1 and traffic defined as UBR will be discarded.
INT nodeGuaranteedBufferThreshold	1.3.6.1.4.1.119.2.3.14.3.1.8	INTEGER	read-write	Threshold buffer capacity for Guaranteed traffic. If the number of cells stored in the buffer exceeds this threshold, cells with CLP=1 and traffic defined as VBR will be discarded.
INT nodeSaveConf	1.3.6.1.4.1.119.2.3.14.3.1.9	INTEGER	write-only	Save system configuration information including PVC/SVC table to the non-volatile memory. save(1) shall be written in case of saving the configiration data.
INT nodeSaveResult	1.3.6.1.4.1.119.2.3.14.3.1.10	INTEGER	read-only	Show the result of the save command issued from NMS. The result is either Succeed/temporary failure/notReady. nearend will be returned if the number of access times has exceeded the limit.
linf	1.3.6.1.4.1.119.2.3.14.3.2
linfStatusTable	1.3.6.1.4.1.119.2.3.14.3.2.1		not-accessible	Status of the line card including ATM specific information.
linfStatusEntry	1.3.6.1.4.1.119.2.3.14.3.2.1.1		not-accessible	-
INT linfIndex	1.3.6.1.4.1.119.2.3.14.3.2.1.1.1	INTEGER	read-only	-
INT linfStatus	1.3.6.1.4.1.119.2.3.14.3.2.1.1.2	INTEGER	read-only	Status of the line cards
INT linfConf	1.3.6.1.4.1.119.2.3.14.3.2.1.1.3	INTEGER	read-write	Line card type.
conn	1.3.6.1.4.1.119.2.3.14.3.3
perf	1.3.6.1.4.1.119.2.3.14.3.4

RFC description

MIB for Cisco/NEC A100 ATM switch node, line interface, connection, and performance monitoring.

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Download A100-R1-MIB

What Is A100-R1-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description