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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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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.

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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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EXTREME-IDMGR-MIB

9 objects

Extreme Identity Management MIB

Imported Objects

EXTREME-BASE-MIB	extremeAgent
SNMPv2-SMI	Integer32 MODULE-IDENTITY NOTIFICATION-TYPE OBJECT-TYPE

OID	Name	Access	Status	Description
1.3.6.1.4.1.1916.1.36	IdentityextremeIdMgr			Extreme Identity Management MIB
1.3.6.1.4.1.1916.1.36.1	NodeextremeIdMgrTraps
1.3.6.1.4.1.1916.1.36.1.0	NodeextremeIdMgrTrapPrefix
1.3.6.1.4.1.1916.1.36.1.0.1	NotificationextremeIdMgrMemLevelChange		current	If Identity Management feature is enabled, this trap will be generated when the memory usage level changes.
1.3.6.1.4.1.1916.1.36.1.1	ScalarextremeIdMgrTrapSeverity	accessible-for-notify	current	Severity of Identity Management Trap
1.3.6.1.4.1.1916.1.36.1.2	ScalarextremeIdMgrMemUsageLevel	accessible-for-notify	current	The current memory usage level -normal(1) The Memory usage is within normal usage limits, <= 80% of configured maximum database size. -high(2) The memory usage…
1.3.6.1.4.1.1916.1.36.1.3	ScalarextremeIdMgrMemUsage	accessible-for-notify	current	The current memory usage (in KBytes).
1.3.6.1.4.1.1916.1.36.1.4	ScalarextremeIdMgrMemMaxSize	accessible-for-notify	current	Configured identity management maximum database memory size (in KBytes).
1.3.6.1.4.1.1916.1.36.1.5	ScalarextremeIdMgrEffectiveStaleAgingTime	accessible-for-notify	current	The effective stale aging time because of memory usage level change (in seconds).