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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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iso/org/dod/internet/private/enterprises/.28350/.4/.1/.3/mc2200-GESFPTable/mc2200-GESFPEntry

mc2200-GESFPEntry

OBJECT-TYPE

1.3.6.1.4.1.28350.4.1.3.12.1

Access

not-accessible

Status

current

Source

OnAccess2200-MIB

Sub-identifiers

Description

One table entry per slot in the media converter chassis. If physical slot 'n' contains a powered GESFP media converter, then entry 'n' in this table exists and describes the state of the converter's lamps If slot 'n' is empty, does not exist, or contains a different type of device, then table entry 'n' does not exist.

Syntax

MC2200-GESFPEntry

Children (68)

.1mc2200-GESFPCardIndex .2mc2200-GESFPLocalTXLink .3mc2200-GESFPLocalWANSFPInfo .4mc2200-GESFPLocalWANLink .5mc2200-GESFPLocalTXDownStreamBW .6mc2200-GESFPLocalTXUpStreamBW .7mc2200-GESFPLocalTXMode .8mc2200-GESFPLocalTXMDIX .9mc2200-GESFPRxGoodOctets .11mc2200-GESFPRxBadOctets .12mc2200-GESFPTxFCSErr .13mc2200-GESFPRxUnicast .14mc2200-GESFPTxDeferred .15mc2200-GESFPRxBroadcasts .16mc2200-GESFPRxMulticasts .17mc2200-GESFPRx64Octets .18mc2200-GESFPRx65to127Octets .19mc2200-GESFPRx128to255Octets .20mc2200-GESFPRx256to511Octets .21mc2200-GESFPRx512to1023Octets .22mc2200-GESFPRx1024toMaxOctets .23mc2200-GESFPTxOctets .25mc2200-GESFPTxUnicast .26mc2200-GESFPTxExcessive .27mc2200-GESFPTxMulticasts .28mc2200-GESFPTxBroadcasts .29mc2200-GESFPTxSingle .30mc2200-GESFPTxPause .31mc2200-GESFPRxPause .32mc2200-GESFPTxMultiple .33mc2200-GESFPRxUndersize .34mc2200-GESFPRxFragments .35mc2200-GESFPRxOversize .36mc2200-GESFPRxJabber .37mc2200-GESFPRxErr .38mc2200-GESFPRxFCSErr .39mc2200-GESFPTxCollisions .40mc2200-GESFPTxLate .41mc2200-GESFPRemoteTXLink .42mc2200-GESFPRemoteWANSFPInfo .43mc2200-GESFPRemoteWANLink .44mc2200-GESFPRemoteTXMode .45mc2200-GESFPRemoteTXMDIX .46mc2200-GESFPRemoteIPAddress .47mc2200-GESFPRemoteSubnetMask .48mc2200-GESFPRemoteGateWay .49mc2200-GESFPRemoteVLANEnable .50mc2200-GESFPRemoteVID .51mc2200-GESFPRemoteAlarm .52mc2200-GESFPRFD .53mc2200-GESFPDefault .54mc2200-GESFPReboot .55mc2200-GESFPLocalTXSpeed .56mc2200-GESFPRemoteTXSpeed .57mc2200-GESFPLocalportuser .58mc2200-GESFPRemoteportuser .59mc2200-GESFPLocalTXDuplex .60mc2200-GESFPRemoteTXDuplex .61mc2200-GESFPFlowControl .62mc2200-GESFPWANOpticalPowerCheck .63mc2200-GESFPWANThreshold .64mc2200-GESFPTrapFilterLocalLAN .65mc2200-GESFPTrapFilterLocalWAN .66mc2200-GESFPTrapFilterRemotePower .67mc2200-GESFPTrapFilterRemoteLAN .68mc2200-GESFPTrapFilterRemoteWAN .69mc2200-GESFPLoopback .70mc2200-GESFPCardType