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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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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/.5504/.5/.1/zhoneIfMauTable/zhoneIfMauEntry/zhoneMauTypeListBits

zhoneMauTypeListBits

OBJECT-TYPE

1.3.6.1.4.1.5504.5.1.1.1.11

Access

read-only

Status

current

Source

ZHONE-MAU-MIB

Sub-identifiers

Description

A value that uniquely identifies the set of possible IEEE 802.3 types that the MAU could be. If auto-negotiation is present on this MAU, this object will map to ifMauAutoNegCapability. Note that this MAU may be capable of operating as a MAU type that is beyond the scope of this MIB. This is indicated by returning the bit value bOther in addition to any bit values for capabilities that are listed above.

Syntax

BITS { bOther(0), bAUI(1), b10base5(2), bFoirl(3), b10base2(4), b10baseT(5), b10baseFP(6), b10baseFB(7), b10baseFL(8), b10broad36(9), b10baseTHD(10), b10baseTFD(11), b10baseFLHD(12), b10baseFLFD(13), b100baseT4(14), b100baseTXHD(15), b100baseTXFD(16), b100baseFXHD(17), b100baseFXFD(18), b100baseT2HD(19), b100baseT2FD(20), b1000baseXHD(21), b1000baseXFD(22), b1000baseLXHD(23), b1000baseLXFD(24), b1000baseSXHD(25), b1000baseSXFD(26), b1000baseCXHD(27), b1000baseCXFD(28), b1000baseTHD(29), b1000baseTFD(30), b10gbaseX(31), b10gbaseR(32), b10gbaseW(33), b10gbaseLX4(34), b10gbaseSR(35), b10gbaseSW(36), b10gbaseLR(37), b10gbaseLW(38), b10gbaseER(39), b10gbaseEW(40) }