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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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iso/org/dod/internet/private/enterprises/.9/.9/ciscoRfSupMIB/.1/.1/cRfSupSysErrorType

cRfSupSysErrorType

OBJECT-TYPE

1.3.6.1.4.1.9.9.198.1.1.18

Access

read-only

Status

current

Source

CISCO-RF-SUPPLEMENTAL-MIB

Sub-identifiers

Description

This object represents the error type for a generic failure between Active and redundant unit. The generic failure can be a sync failure, upload and download issue. Notification will be sent if the object has a valid error type.

Syntax

INTEGER { download-config(1), download-code (2), download-icon (3), download-image (4), download-signature (5), download-webadmincert(6), download-webauthcert (7), download-webauthbundle (8), download-eapdevcert (9), download-eapcacert (10), download-login-banner(11), upload-config (12), upload-debug-file(13), upload-crashfile (14), upload-watchdog-crash-file(15), upload-panic-crash-file (16), upload-coredump (17), upload-errorlog (18), upload-invalid-config(19), upload-pac (20), upload-radio-core-dump(21), upload-ap-crash-data (22), upload-signature (23), upload-systemtrace (24), upload-packet-capture (25), upload-traplog (26), route-add(27), route-del(28), interface-service-port(29), reset(30), other(31), config-sync-fail(32), peer-maintenance(33), peer-loss(34), rfTrapClearTemplist(35) }