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MIB Viewer
Browse, search, and explore SNMP MIB modules and their OIDs. Look up any object by name or number, see its syntax, access level, and description, trace its place in the tree, and generate ready-to-run SNMP commands — all without leaving the browser.
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) →Search for a MIB or OID above, or pick one from the list on the left.
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OLD-CISCO-CPU-MIB
| OID | Name | Access | Status | Description |
|---|---|---|---|---|
| 1.3.6.1.4.1.9.2.1 | Nodelcpu | |||
| 1.3.6.1.4.1.9.2.1.56 | ScalarbusyPer | read-only | mandatory | CPU busy percentage in the last 5 second period. Not the last 5 realtime seconds but the last 5 second period in the scheduler. |
| 1.3.6.1.4.1.9.2.1.57 | ScalaravgBusy1 | read-only | mandatory | 1 minute exponentially-decayed moving average of the CPU busy percentage. |
| 1.3.6.1.4.1.9.2.1.58 | ScalaravgBusy5 | read-only | mandatory | 5 minute exponentially-decayed moving average of the CPU busy percentage. |
| 1.3.6.1.4.1.9.2.1.59 | ScalaridleCount | read-write | mandatory | cisco internal variable. not to be used |
| 1.3.6.1.4.1.9.2.1.60 | ScalaridleWired | read-write | mandatory | cisco internal variable. not to be used |