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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.

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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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JUNIPER-ALARM-EXT-MIB

5 objects

This is Juniper Networks' implementation of enterprise specific MIB for alarms from the router chassis box.

Imported Objects

ALARM-MIB	alarmClearEntry
JUNIPER-SMI	jnxAlarmExtMibRoot jnxMibs
SNMPv2-SMI	MODULE-IDENTITY OBJECT-TYPE
SNMPv2-TC	DateAndTime TEXTUAL-CONVENTION

OID	Name	Access	Status	Description
1.3.6.1.4.1.2636.3.72.1	IdentityjnxAlarmMIB			This is Juniper Networks' implementation of enterprise specific MIB for alarms from the router chassis box.
1.3.6.1.4.1.2636.3.72.1.1	NodejnxAlarmObjects
1.3.6.1.4.1.2636.3.72.1.1.1	TablejnxAlarmClearTable	not-accessible	current	This table augments alarmClearTable. This table contains additional object needed to indicate DateAndTime when a particular alarm was raised.
1.3.6.1.4.1.2636.3.72.1.1.1.1	RowjnxAlarmClearEntry	not-accessible	current	An entry containing additional information applicable to a particular entry in alarm ClearTable.
1.3.6.1.4.1.2636.3.72.1.1.1.1.1	ColumnjnxAlarmClearActiveDateAndTime	read-only	current	This object indicates DateAndTime, when current alarm was raised.