ENTITY-MIB
Functions Overview
The entity-MIB is used to describe multiple entities that are managed by a single SNMP agent. This MIB supports queries about the entities.
Root directory:
iso(1).org(3).dod(6).internet(1).mgmt(2).mib-2(1).entityMIB(47)
Relationship Between Tables
Figure 9-1 shows the relationship between the entPhysicalTable and the entPhysicalContainsTable. The entPhysicalContainedIn in the entPhysicalTable refers to the index of the entity that contains this physical entity. In the entPhysicalContainsTable, enyPhysicalChildIndex and entPhysicalIndex are used as indexes.
Figure 9-2 shows the relationship between the entPhysicalTable and the entAliasMappingTable. The index in the entAliasMappingTable corresponds to the entPhysicalIndex in the entPhysicalTable.
Description of Single Objects
entLastChangeTime
The object identifier (OID) of this object is 1.3.6.1.2.1.47.1.4.1.
OID |
Object |
Syntax |
Max Access |
Description |
Implemented Specification |
---|---|---|---|---|---|
1.3.6.1.2.1.47.1.4.1 |
entLastChangeTime |
TimeTicks |
read-only |
Indicates the time when the entity MIB contents change, that is, sysUpTime. |
This object is implemented as defined in the corresponding MIB files. |
Description of MIB Tables
entPhysicalTable
This table lists all the physical objects as well as their types and information. At least one object is contained in the table.
The index of this table is entPhysicalIndex.
OID |
Object |
Syntax |
Max Access |
Description |
Implemented Specification |
---|---|---|---|---|---|
1.3.6.1.2.1.47.1.1.1.1.1 |
entPhysicalIndex |
Integer32 (1..2147483647) |
not-accessible |
Indicates the index of the physical entity. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.2 |
entPhysicalDescr |
OCTET STRING (SIZE (0..255)) |
read-only |
Indicates the description of physical entities such as device type, board, and interface. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.3 |
entPhysicalVendorType |
OBJECT IDENTIFIER |
read-only |
Indicates the type of the physical entity. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.4 |
entPhysicalContainedIn |
INTEGER |
read-only |
Indicates the index of the entity that contains this physical entity. The value ranges from 0 to 2147483647. The default value is 1. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.5 |
entPhysicalClass |
INTEGER {other(1),unknown(2),chassis(3),backplane(4),container(5),powerSupply(6),fan(7),sensor(8),module(9),port(10),stack(11),cpu(12)} |
read-only |
Indicates the generic type of the physical entity. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.6 |
entPhysicalParentRelPos |
INTEGER |
read-only |
Indicates the relative number of each sub-entity. The value ranges from -1 to 2147483647. The default value is 1. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.7 |
entPhysicalName |
OCTET STRING (SIZE (0..255)) |
read-only |
Indicates the name of the physical entity. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.8 |
entPhysicalHardwareRev |
OCTET STRING (SIZE (0..255)) |
read-only |
Indicates the hardware version number. This value is consistent with that of the Pcb Version field in the display version command output. If an entity does not have this version number, this value displays NA. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.9 |
entPhysicalFirmwareRev |
OCTET STRING (SIZE (0..255)) |
read-only |
Indicates the firmware version number. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.10 |
entPhysicalSoftwareRev |
OCTET STRING (SIZE (0..255)) |
read-only |
Indicates the software version number. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.11 |
entPhysicalSerialNum |
OctetString |
read-only |
Indicates the serial number. The value ranges from 0 to 32. The default value is 1. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.12 |
entPhysicalMfgName |
OCTET STRING (SIZE (0..255)) |
read-only |
Indicates the name of the manufacturer. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.1.1.1.16 |
entPhysicalIsFRU |
INTEGER{true(1),false(2)} |
read-only |
Indicates whether it is pluggable. |
This object is implemented as defined in the corresponding MIB files. |
Creation Restriction
This table cannot be created.
Modification Restriction
This table cannot be modified.
Deletion Restriction
This table cannot be deleted.
Access Restriction
None.
entLogicalTable
This table lists all the logical entities.
The index of this table is entLogicalIndex.
OID |
Object |
Syntax |
Max Access |
Description |
Implemented Specification |
---|---|---|---|---|---|
1.3.6.1.2.1.47.1.2.1.1.1 |
entLogicalIndex |
Integer |
Not-accessible |
Indicates the index of the logical entity. The value ranges from 1 to 2147483647. The default value is 1. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.2.1.1.2 |
entLogicalDescr |
OCTET STRING (SIZE (0..255)) |
Read-only |
Indicates the description about the logical entity. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.2.1.1.3 |
entLogicalType |
AutonomousType |
Read-only |
Indicates the type of the logical entity. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.2.1.1.5 |
entLogicalTAddress |
OCTET STRING (SIZE (1..255)) |
Read-only |
Indicates the transport service address by which the logical entity receives network management traffic. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.2.1.1.6 |
entLogicalTDomain |
OBJECT IDENTIFIER |
Read-only |
Indicates the type of the transport service by which the logical entity receives network management traffic. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.2.1.1.7 |
entLogicalContextEngineID |
OCTET STRING (SIZE(0..32)) |
Read-only |
Indicates the SNMP engine ID. |
This object is implemented as defined in the corresponding MIB files. |
Creation Restriction
This table cannot be created.
Modification Restriction
This table cannot be modified.
Deletion Restriction
This table cannot be deleted.
Access Restriction
None.
entLPMappingTable
This table describes mappings between logical entities and physical entities.
The indexes of this table are entLogicalIndex and entLPPhysicalIndex.
OID |
Object Name |
Syntax |
Max Access |
Description |
Implemented Specification |
---|---|---|---|---|---|
1.3.6.1.2.1.47.1.3.1.1.1 |
entLPPhysicalIndex |
Integer |
Read-only |
This object indicates the index of a mapping between logical and physical entities. |
This object is implemented as defined in the corresponding MIB files. |
Creation Restriction
No entry can be created in this table.
Modification Restriction
The entries in this table cannot be modified.
Deletion Restriction
The entries in this table cannot be deleted.
Access Restriction
The entries in this table can be read without restriction.
entAliasMappingTable
This table shows the relationship between the logical entity extended MIB and the physical entity extended MIB.
The indexes of this table are entPhysicalInedx and entAliasLogicalIndexOrZero.
OID |
Object |
Syntax |
Max Access |
Description |
Implemented Specification |
---|---|---|---|---|---|
1.3.6.1.2.1.47.1.3.2.1.1 |
entAliasLogicalIndexOrZero |
Integer |
Not-accessible |
Indicates the index of the logical entity. The value ranges from 0 to 2147483647. The default value is 1. |
This object is implemented as defined in the corresponding MIB files. |
1.3.6.1.2.1.47.1.3.2.1.2 |
entAliasMappingIdentifier |
OBJECT IDENTIFIER |
Read-only |
Indicates the identifier of the extended MIB. |
This object is implemented as defined in the corresponding MIB files. |
Creation Restriction
This table cannot be created.
Modification Restriction
This table cannot be modified.
Deletion Restriction
This table cannot be deleted.
Access Restriction
None.
entPhysicalContainsTable
This table shows the relationships between the physical entities.
The indexes of this table are entPhysicalInedx and entPhysicalChildIndex.
OID |
Object |
Syntax |
Max Access |
Description |
Implemented Specification |
---|---|---|---|---|---|
1.3.6.1.2.1.47.1.3.3.1.1 |
entPhysicalChildIndex |
Integer32 (1..2147483647) |
Read-only |
Indicates the index of the child physical entity. |
This object is implemented as defined in the corresponding MIB files. |
Creation Restriction
This table cannot be created.
Modification Restriction
This table cannot be modified.
Deletion Restriction
This table cannot be deleted.
Access Restriction
None.
Description of Alarm Objects
entConfigChange
OID |
Object |
Syntax |
Description |
Implemented Specifications |
---|---|---|---|---|
1.3.6.1.2.1.47.2.0.1 |
entConfigChange |
NA |
This object indicates that an entity (either a board or a subcard) was inserted, pulled out, reset, or registered, which caused the change of MIB information. |
This object is implemented as defined in the corresponding MIB file. |
Objects Not Supported by the Device
The functions of the following objects are not supported on the device. Therefore, do not use these objects to maintain the device.
Object OID |
Object Name | Table to Which the Object Belongs |
---|---|---|
1.3.6.1.2.1.47.1.1.1.1.13 |
entPhysicalModelName |
entPhysicalTable |
1.3.6.1.2.1.47.1.1.1.1.14 |
entPhysicalAlias |
entPhysicalTable |
1.3.6.1.2.1.47.1.1.1.1.15 |
entPhysicalAssetID |
entPhysicalTable |
1.3.6.1.2.1.47.1.2.1.1.4 |
entLogicalCommunity |
entLogicalTable |
1.3.6.1.2.1.47.1.2.1.1.8 |
entLogicalContextName |
entLogicalTable |