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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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HH3C-ENTRELATION-MIB

14 objects

The private MIB file includes the general relation information information of entities. Entity MIB is used to express the physical location of the physical entities. Other relations, such as stack port pair and combo port pair, are not suitable to be implemented in Entity MIB. So this MIB is used to express these relations.

Imported Objects

ENTITY-MIB	PhysicalIndex
HH3C-OID-MIB	hh3cCommon
SNMPv2-CONF	MODULE-COMPLIANCE OBJECT-GROUP
SNMPv2-SMI	MODULE-IDENTITY OBJECT-TYPE
SNMPv2-TC	TEXTUAL-CONVENTION

OID	Name	Access	Status	Description
1.3.6.1.4.1.25506.2.15	Identityhh3cEntityRelation			The private MIB file includes the general relation information information of entities. Entity MIB is used to express the physical location of the physical ent…
1.3.6.1.4.1.25506.2.15.1	Nodehh3cEntRelationObjects
1.3.6.1.4.1.25506.2.15.1.1	Nodehh3cEntRelation
1.3.6.1.4.1.25506.2.15.1.1.1	Tablehh3cEntRelationTable	not-accessible	current	Entity MIB is used to express the physical location of the physical entities. Other relations, such as stack port pair and combo port pair, are not suitable to…
1.3.6.1.4.1.25506.2.15.1.1.1.1	Rowhh3cEntRelationEntry	not-accessible	current	The information about a particular physical entity.
1.3.6.1.4.1.25506.2.15.1.1.1.1.1	Columnhh3cEntRelationType	not-accessible	current	The index of hh3cEntRelationTable. entRelationType describe the relation type of the two entities(indicated by entityIndex and relatedEntityIndex)
1.3.6.1.4.1.25506.2.15.1.1.1.1.2	Columnhh3cEntityIndex	not-accessible	current	The index of hh3cEntRelationTable. entityIndex is the index of the entity. This index is identical to entPhysicalIndex in ENTITY-MIB
1.3.6.1.4.1.25506.2.15.1.1.1.1.3	Columnhh3cRelatedEntityIndex	read-only	current	The index of hh3cEntRelationTable. relatedEntityIndex is the entity index that entityIndex related to, This index is identical to entPhysicalIndex in ENTITY-MIB
1.3.6.1.4.1.25506.2.15.2	Nodehh3cEntRelationConformance
1.3.6.1.4.1.25506.2.15.2.1	Nodehh3cEntRelationCompliances
1.3.6.1.4.1.25506.2.15.2.1.1	Compliancehh3cEntRelationCompliance		current	The compliance statement for systems supporting this MIB.
1.3.6.1.4.1.25506.2.15.2.2	Nodehh3cEntRelationGroups
1.3.6.1.4.1.25506.2.15.2.2.1	Grouphh3cEntRelationGroup		current	Standard Entity Relation group.

Type Definitions

Name	Syntax	Status	Description
Hh3cEntRelationType	INTEGER { stackport(1), comboport(2) }	current	entRelationType describe the relation type of the two entities (indicated by entityIndex and relatedEntityIndex) . stackport: this port is a stack port. entityIndex is the default uplinkport index, and relatedEntityInde…