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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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HH3C-DAC-MIB

15 objects

Add hh3cDacTrapStoreFull, hh3cDacTrapStoreDeleteFile, hh3cDacTrapStorageChange, hh3cDacTrapTotalStoreFull

Imported Objects

HH3C-OID-MIB	hh3cCommon
SNMPv2-SMI	MODULE-IDENTITY NOTIFICATION-TYPE OBJECT-TYPE Unsigned32

OID	Name	Access	Status	Description
1.3.6.1.4.1.25506.2.237	Identityhh3cDac			Add hh3cDacTrapStoreFull, hh3cDacTrapStoreDeleteFile, hh3cDacTrapStorageChange, hh3cDacTrapTotalStoreFull
1.3.6.1.4.1.25506.2.237.1	Nodehh3cDacStoreTraps
1.3.6.1.4.1.25506.2.237.1.0	Nodehh3cDacTrapsStorePrefix
1.3.6.1.4.1.25506.2.237.1.0.1	Notificationhh3cDacTrapStoreFull		current	Send trap when storage space or storage time reaches the upper limit.
1.3.6.1.4.1.25506.2.237.1.0.2	Notificationhh3cDacTrapStoreDeleteFile		current	When the storage space or storage time reaches the upper limit, delete the data beyond the upper limit.
1.3.6.1.4.1.25506.2.237.1.0.3	Notificationhh3cDacTrapStorageChange		current	Log storage media switching.
1.3.6.1.4.1.25506.2.237.1.0.4	Notificationhh3cDacTrapTotalStoreFull		current	The total storage space utilization rate of DAC business has reached 98%.
1.3.6.1.4.1.25506.2.237.1.1	Nodehh3cDacTrapsStoreObjects
1.3.6.1.4.1.25506.2.237.1.1.1	Scalarhh3cDacStoreServiceName	accessible-for-notify	current	Service identification of storage alarm.
1.3.6.1.4.1.25506.2.237.1.1.2	Scalarhh3cDacStoreThresholdType	accessible-for-notify	current	Storage time alarm or storage space alarm.
1.3.6.1.4.1.25506.2.237.1.1.3	Scalarhh3cDacStoreThresholdValue	accessible-for-notify	current	Storage alarm threshold.
1.3.6.1.4.1.25506.2.237.1.1.4	Scalarhh3cDacNewStorageMedia	accessible-for-notify	current	New storage media file system name after switching.
1.3.6.1.4.1.25506.2.237.1.1.5	Scalarhh3cDacOldStorageMedia	accessible-for-notify	current	Old storage media file system name after switching.
1.3.6.1.4.1.25506.2.237.1.1.6	Scalarhh3cDacStorageChangeReason	accessible-for-notify	current	The reason for switching storage media.
1.3.6.1.4.1.25506.2.237.1.1.7	Scalarhh3cDacStorageChangeTip	accessible-for-notify	current	If the new storage medium is not memory, this item is empty. Otherwise, the corresponding prompt message will be prompted.