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What's a MIB?

A MIB (Management Information Base) is a structured document that defines the data a device exposes over SNMP — things like interface counters, system uptime, or CPU load. Each module declares a set of named objects, organized into a tree.

What's SNMP?

SNMP (Simple Network Management Protocol) is how network devices — routers, switches, servers — report status and statistics to monitoring tools. It's the protocol; MIBs are the vocabulary it uses to describe what's being asked for.

What's an OID?

An OID (Object Identifier) is the numeric address of one piece of data in a MIB — a dotted sequence like 1.3.6.1.2.1.1.1, read from the root of a global tree down to one specific object. Names are easier to read; OIDs are what's actually sent over the wire.

Try it: sysDescr (1.3.6.1.2.1.1.1) →

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POWERFANS-MIB

17 objects

No module-level DESCRIPTION found.

Imported Objects

RFC-1215	TRAP-TYPE
RFC1155-SMI	Counter Gauge IpAddress mgmt NetworkAddress
SNMPv2-SMI	Counter32 Counter64 enterprises Gauge32 Integer32 MODULE-IDENTITY NOTIFICATION-TYPE OBJECT-TYPE TimeTicks

OID	Name	Access	Status	Description
1.3.6.1.4.1.3902	Nodezte
1.3.6.1.4.1.3902.3	Nodezxr10
1.3.6.1.4.1.3902.3.1	Nodezxr10systemconfig
1.3.6.1.4.1.3902.3.200	Nodeenviorment
1.3.6.1.4.1.3902.3.200.1	TablefanTable	not-accessible	current	the description of fans infomation
1.3.6.1.4.1.3902.3.200.1.1	RowfanEntry	not-accessible	current	A fans entry containing objects that descript the fans infomation.
1.3.6.1.4.1.3902.3.200.1.1.1	ColumnfanNo	read-only	current	The no. of the fan.
1.3.6.1.4.1.3902.3.200.1.1.2	ColumnfanStat	read-only	current	The status of fan
1.3.6.1.4.1.3902.3.200.1.1.3	ColumnfanRotateSpeed	read-only	current	the Rotate Speed of fan
1.3.6.1.4.1.3902.3.200.2	TablepowerTable	not-accessible	current	the description of power infomation
1.3.6.1.4.1.3902.3.200.2.1	RowpowerEntry	not-accessible	current	A power entry containing objects that descript the power infomation.
1.3.6.1.4.1.3902.3.200.2.1.1	ColumnpowerNo	read-only	current	The no. of the power.
1.3.6.1.4.1.3902.3.200.2.1.2	ColumnpowerStat	read-only	current	The status of the power
1.3.6.1.4.1.3902.3.200.2.1.3	ColumnpowerTemperature	read-only	current	Power Temperature

Type Definitions

Name	Syntax	Status	Description
DisplayString	OCTET STRING
FanStatus	INTEGER { fan-online(0), fan-offline(1) }
PowerStatus	INTEGER { power-work(0), power-online(1), power-offline(2) }