MIB Viewer

MIB Viewer is a free SNMP MIB browser and database with over 12,000 MIBs and 1,600,000 OIDs. Search by name, OID, or number to look up any MIB object, view its syntax, access level, and description, trace its place in the MIB tree, and generate ready-to-run SNMP commands — all in your 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) →

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iso/org/dod/internet/private/enterprises/.1991/.1/.1/.3/.3/snSwIfInfoTable/snSwIfInfoEntry/snSwIfInfoMediaType

snSwIfInfoMediaType

OBJECT-TYPE

1.3.6.1.4.1.1991.1.1.3.3.5.1.8

Access

read-only

Status

current

Source

FOUNDRY-SN-SWITCH-GROUP-MIB

Sub-identifiers

Description

The media type for the port. The values are: other(1).........other or unknown media. m100BaseTX(2)....100Mbits per second copper. m100BaseFX(3)....100Mbits per second fiber. m1000BaseFX(4)...1Gbits per second fiber. mT3(5)...........45Mbits per second (T3). m155ATM(6).......155Mbits per second (ATM). m1000BaseTX(7)...1Gbits per second copper. m622ATM(8).......622Mbits per second (ATM). m155POS(9).......155Mbits per second (POS). m622POS(10)......622Mbits per second (POS). m2488POS(11).....2488Mbits per second (POS). m10000BaseFX(12).10Gbits per second fiber. m9953POS(13).....9953Mbits per second (POS). m16GStacking(14)...16Gbits per second fiber. m40GStacking(16). 40Gbits per second fiber. m40GBaseFX(17)....40Gbits per second fiber. m10000BaseTX(18)..10Gbits per second copper. m2500BaseTX(19). 2.5Gbits per second fiber.

Syntax

INTEGER { other(1), m100BaseTX(2), m100BaseFX(3), m1000BaseFX(4), mT3(5), m155ATM(6), m1000BaseTX(7), m622ATM(8), m155POS(9), m622POS(10), m2488POS(11), m10000BaseFX(12), m9953POS(13), m16GStacking(14), m100GBaseFX(15), m40GStacking(16), m40GBaseFX(17), m10000BaseTX(18), m2500BaseTX(19) }