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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-NETSTREAM4-MIB

9 objects

This MIB file is to provide the definition of the IP netstream.

Imported Objects

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

OID	Name	Access	Status	Description
1.3.6.1.4.1.25506.2.256	Identityhh3cNetstream4			This MIB file is to provide the definition of the IP netstream.
1.3.6.1.4.1.25506.2.256.1	Nodehh3cNetstream4TrapEntry
1.3.6.1.4.1.25506.2.256.1.0	Nodehh3cNetstream4TrapEntrys
1.3.6.1.4.1.25506.2.256.1.0.1	Notificationhh3cNetstream4TrapEntryTHAlarm		current	If the number of netstream4 tables exceeds the maximum value of the board by 80%, a trap message is generated and sent to the remote monitoring device.
1.3.6.1.4.1.25506.2.256.1.0.2	Notificationhh3cNetstream4TrapEntryTHResume		current	If the number of Netstream4 tables drops below 70% of the board maximum, a trap message is generated and sent to the remote monitoring device.
1.3.6.1.4.1.25506.2.256.1.1	Nodehh3cNetstream4TrapEntryObjects
1.3.6.1.4.1.25506.2.256.1.1.1	Scalarhh3cNetstream4TrapEntrySpec	accessible-for-notify	current	The Maximum number of entries in the IP netStream cache.
1.3.6.1.4.1.25506.2.256.1.1.2	Scalarhh3cNetstream4TrapEntryChassis	accessible-for-notify	current	The information of chassis ID. If the value is 65535, the device is not a stacked device .
1.3.6.1.4.1.25506.2.256.1.1.3	Scalarhh3cNetstream4TrapEntrySlot	accessible-for-notify	current	The information of slot.