MIB Viewer — SNMP MIB Browser & Database

MIB Viewer is a free SNMP MIB browser and database with over 19,000 MIBs and 2,500,000 OIDs, covering both the standard, cross-vendor MIBs every device supports and the enterprise-specific MIBs published by individual hardware vendors. Browse the full MIB list, search by name or OID, or use the OID lookup to trace any object's exact position in the tree — view its syntax, access level, and description, and generate a ready-to-run SNMP command, all in your browser, with nothing to install and no account required. The database grows continuously, and beyond the lookup tool itself, the site includes a growing library of written guides and reference material covering SNMP concepts, vendor-specific configuration, DOCSIS cable modem and CMTS monitoring, and troubleshooting — see the Guides menu above, or the highlights below.

Online MIB Browser

MIB Viewer works as a browser for SNMP MIB files the way a code editor browses a file tree: pick a module from the sidebar, or search by name, and the full text of that MIB opens on the right — every object, table, and notification it defines, with syntax, access level, and description rendered in a readable format instead of raw ASN.1. It runs entirely online, in your browser, with nothing to install — just open the site and start browsing.

How MIB files are structured →

MIB Database

Behind the browser is a growing database spanning the standard, cross-vendor MIBs every SNMP-capable device implements — IF-MIB, SNMPv2-MIB, HOST-RESOURCES-MIB, and the rest — plus the enterprise-specific MIBs published by hundreds of individual hardware vendors under their own IANA-assigned numbers, organized and searchable by vendor name or enterprise number.

Search MIBs by vendor →

OID Search & Lookup

Every value an SNMP agent can report lives at a specific OID — a dotted numeric address like 1.3.6.1.2.1.1.1 — and this OID search resolves that address in either direction: paste a raw OID to look up the object it names, or search by name to find its OID, complete with its exact position in the MIB tree.

Try an OID lookup: sysDescr (1.3.6.1.2.1.1.1) →

MIB Browser

MIB Viewer Desktop is a native app for Mac and Windows that brings the same MIB browsing and OID lookup to your desktop, with MIBs and uploaded files saved locally across sessions instead of re-loading them in a browser tab each time. It's built for people who work with the same set of MIBs repeatedly and want them available offline, without a browser window open.

Get MIB Viewer Desktop →

MIB File Reader

Have your own MIB file? Drop it on the upload zone in the sidebar (or click to browse) and it's parsed and read right away, with the same navigable view as any MIB already in the database — every object, syntax, and description laid out in full. It's sent to the server to be parsed but isn't added to the shared, publicly searchable database; it stays scoped to your own session.

Upload a MIB file to read →

SNMP Translate

The bulk translate tool takes a whole batch of OIDs or object names at once — paste them in or upload a file — and translates every line to the other form in one pass, which is useful for things like resolving the raw OIDs in a captured trap log or an SNMP walk output back to readable names.

Bulk translate OIDs & names →

SNMP & MIB Basics

What's a MIB?

A MIB (Management Information Base) defines the data a device can report over SNMP — things like interface counters, system uptime, or CPU load — organizing each value under a name and a fixed numeric address. Every MIB module declares a tree of related objects, and a device typically implements dozens of MIBs at once: a handful of universal ones every vendor supports, plus whatever proprietary ones that specific vendor has published.

What's SNMP?

SNMP (Simple Network Management Protocol) is how routers, switches, servers, and other network devices report status and statistics back to monitoring tools. It's the transport; MIBs are the vocabulary that gives the data it carries any meaning. Most monitoring platforms — Zabbix, PRTG, LibreNMS, Prometheus's SNMP exporter, and plenty of others — rely on this same underlying protocol and MIB structure.

What's an OID?

An OID is the actual address of one piece of data — a dotted sequence like 1.3.6.1.2.1.1.1, read from the root of a shared global tree down to one specific object. Names are for humans; OIDs are what actually gets sent over the wire. Every vendor's private MIBs live under that vendor's own reserved branch of the same tree, which is what lets one numbering system cover both universal and proprietary data.

What is a MIB browser?

A MIB browser is a tool for reading and navigating MIB files — the definitions that describe what data a device can report over SNMP. Instead of reading raw ASN.1 text by hand, a MIB browser renders each object's name, OID, syntax, and description in a searchable, navigable form. MIB Viewer does this entirely in your browser, for MIBs already in its database or ones you upload yourself.

What is an OID lookup tool?

An OID lookup tool resolves an OID — a dotted numeric address like 1.3.6.1.2.1.1.1 — to the object it identifies, and vice versa: name to OID. MIB Viewer's OID search does both, and shows the object's full definition and its exact position in the MIB tree, not just a bare name.

Is MIB Viewer free to use?

Yes — browsing MIBs, searching OIDs, uploading your own MIB files, and reading the guides are all free, with no account required. MIB Viewer Desktop is a separate paid native app for people who want MIBs saved locally across sessions and offline access, but the web tool itself has no paywall.

Can I look up a MIB from a specific vendor?

Yes — use Search Vendor MIBs under Tools to list every MIB a given vendor has published, searchable by vendor name or IANA enterprise number.

Guides & Resources

Beyond the lookup tool, the site includes practical, hands-on guides and reference material — installing and using the standard SNMP tools, configuring SNMP on specific vendor hardware, monitoring DOCSIS cable modems and CMTSs, and working through the errors people run into most. A few places to start:

SNMP Fundamentals

The manager/agent model, MIBs and OIDs, versions, access control, and all six core operations in one place.

Using net-snmp

Installing the standard Linux SNMP toolkit, the client commands, running an agent, receiving traps, and loading MIBs into each one.

SNMPv3

A complete deep dive into SNMPv3's security model — USM, authentication and privacy protocols, engine IDs, VACM, and configuring a real user.

SNMP vs Telemetry

How SNMP's pull-based polling compares to push-based streaming telemetry (gNMI, NETCONF/YANG) — architecture, tradeoffs, and when to use each.

Understanding MIBs

How objects, tables, and notifications are actually defined, and how vendor-specific numbering keeps everyone's private OIDs from colliding.

Troubleshooting SNMP

From a plain timeout to SNMPv3 auth failures to a MIB that won't parse — working through what actually went wrong and why.

Searching OIDs

Starting from a real device's sysObjectID, searching by name or number, and filtering a MIB down to just the objects you need.

Uploading MIBs

Parsing your own MIB file in-browser, what happens to it afterward, and troubleshooting a file that won't load.

Bulk Translate

Translating a whole batch of OIDs or object names at once — pasted in or uploaded — useful for trap logs and SNMP walk output.

SNMP History

From SNMPv1 in 1988 through v2c and v3, and how newer approaches like streaming telemetry fit alongside it today.

Get started

Search for a MIB or OID above, or pick one from the list on the left.

Have your own MIB file? Drop it on the upload zone in the sidebar (or click to browse) to parse and explore it right away. It's sent to the server to be parsed and isn't added to the shared, publicly searchable database — it stays scoped to your own session in the tree on the left.

New here? The Guides menu above is the place to start if you want the concepts explained rather than just looked up.

OPTIX-GLOBAL-PM-TRAPS-MSTP-MIB

91 objects

No module-level DESCRIPTION found.

Imported Objects

OPTIX-GLOBAL-TRAPS-MIB	optixGlobalTrap rptEvtDateTime rptEvtObjType rptEvtPara rptEvtParaLen rptEvtPeriod rptEvtValue rptEvtVldty
SNMPv2-SMI	NOTIFICATION-TYPE

OID	Name	Status	Description
1.3.6.1.2.1.10.3.40.40.20	NodeoptixTrapsPM
1.3.6.1.2.1.10.3.40.40.20.1	NotificationpmRisingAlarm	current	Indicates the performance event whose value is above the upper threshold.
1.3.6.1.2.1.10.3.40.40.20.2	NotificationpmFallingAlarm	current	Indicates the performance event whose value is below the lower threshold.
1.3.6.1.2.1.10.3.40.40.20.101	NotificationpmRXPKT64	current	The total number of received packets (including bad packets) whose length is 64 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.102	NotificationpmRXPKT65	current	The total number of received packets (including bad packets) whose length is between 65 and 127 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.103	NotificationpmRXPKT128	current	The total number of received packets (including bad packets) whose length is between 128 and 255 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.104	NotificationpmRXPKT256	current	The total number of received packets (including bad packets) whose length is between 256 and 511 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.105	NotificationpmRXPKT512	current	The total number of received packets (including bad packets) whose length is between 512 and 1023 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.106	NotificationpmRXPKT1024	current	The total number of received packets (including bad packets) whose length is between 1024 and 1518 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.107	NotificationpmTXPKT64	current	The total number of transmitted packets (including bad packets) whose length is between 64 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.108	NotificationpmTXPKT65	current	The total number of transmitted packets (including bad packets) whose length is between 65 and 127 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.109	NotificationpmTXPKT128	current	The total number of transmitted packets (including bad packets) whose length is between 128 and 255 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.110	NotificationpmTXPKT256	current	The total number of transmitted packets (including bad packets) whose length is between 256 and 511 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.111	NotificationpmTXPKT512	current	The total number of transmitted packets (including bad packets) whose length is between 512 and 1023 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.112	NotificationpmTXPKT1024	current	The total number of transmitted packets (including bad packets) whose length is between 1024 and 1518 bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.113	NotificationpmRXUNICAST	current	The total number of unicast good packets received.
1.3.6.1.2.1.10.3.40.40.20.114	NotificationpmRXMULCAST	current	The total number of received good packets (excluding broadcast packets) whose destination address is a multicast address.
1.3.6.1.2.1.10.3.40.40.20.115	NotificationpmRXBRDCAST	current	The total number of received good packets (excluding multicast packets) whose destination address is the broadcast address.
1.3.6.1.2.1.10.3.40.40.20.116	NotificationpmTXUNICAST	current	The total number of transmitted unicast packets, including packets that are discarded and are not successfully transmitted.
1.3.6.1.2.1.10.3.40.40.20.117	NotificationpmTXMULCAST	current	The total number of transmitted multicast packets, including packets that are discarded and are not successfully transmitted.
1.3.6.1.2.1.10.3.40.40.20.118	NotificationpmTXBRDCAST	current	The total number of transmitted broadcast packets, including packets that are discarded and are not successfully transmitted.
1.3.6.1.2.1.10.3.40.40.20.119	NotificationpmRXPAUSE	current	A count of received MAC flow control frames that have the PAUSE operation code.
1.3.6.1.2.1.10.3.40.40.20.120	NotificationpmTXPAUSE	current	A count of transmitted MAC flow control frames that have the PAUSE operation code.
1.3.6.1.2.1.10.3.40.40.20.121	NotificationpmETHDROP	current	The total number of events in which packets were dropped by the probe due to lack of resources
1.3.6.1.2.1.10.3.40.40.20.122	NotificationpmETHUNDER	current	The total number of received packets (excluding framing bits, but including FCS bytes) that have a length of smaller than 64 bytes, and that do not have any ot…
1.3.6.1.2.1.10.3.40.40.20.123	NotificationpmETHOVER	current	The total number of received packets (excluding framing bits, but including FCS bytes) that have a length of greater than 1518 bytes, and that do not have any …
1.3.6.1.2.1.10.3.40.40.20.124	NotificationpmETHFRG	current	The total number of received packets (excluding framing bits, but including FCS bytes) that have a length of smaller than 64 bytes, and that have FCS errors or…
1.3.6.1.2.1.10.3.40.40.20.125	NotificationpmETHJAB	current	The total number of received packets (excluding framing bits, but including FCS bytes) that have a length of greater than 1518 bytes, and that have FCS errors …
1.3.6.1.2.1.10.3.40.40.20.126	NotificationpmRXBGOOD	current	The total number of octets of good packets received on the network (excluding framing bits but including FCS octets).
1.3.6.1.2.1.10.3.40.40.20.127	NotificationpmTXBGOOD	current	The total number of octets of good packets transmitted on the network (excluding framing bits but including FCS octets).
1.3.6.1.2.1.10.3.40.40.20.128	NotificationpmRXBBAD	current	The total number of received bad-packet bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.129	NotificationpmTXBBAD	current	The total number of transmitted bad-packet bytes (excluding framing bits, but including FCS bytes).
1.3.6.1.2.1.10.3.40.40.20.131	NotificationpmETHALI	current	A count of frames received on a particular interface that are not an integral number of octets in length and do not pass the FCS check
1.3.6.1.2.1.10.3.40.40.20.132	NotificationpmETHFCS	current	A count of received frames that are an integer number of bytes in length and have FCS errors. This count does not include oversize and undersize frames.
1.3.6.1.2.1.10.3.40.40.20.139	NotificationpmRXPKT1519	current	The number of receive packets,with lengths between 1519 bytes and the maximum packet size,including bad packets.
1.3.6.1.2.1.10.3.40.40.20.140	NotificationpmTXPKT1519	current	The Number Of Transmitted Packets Larger than 1518 Bytes, Including Bad Packets.
1.3.6.1.2.1.10.3.40.40.20.141	NotificationpmPKT64	current	Packets received and transmitted (64 bytes in length).
1.3.6.1.2.1.10.3.40.40.20.142	NotificationpmPKT65	current	Packets received and transmitted (65-127 bytes in length).
1.3.6.1.2.1.10.3.40.40.20.143	NotificationpmPKT128	current	Packets received and transmitted (128-255 bytes in length).
1.3.6.1.2.1.10.3.40.40.20.144	NotificationpmPKT256	current	Packets received and transmitted (256-511 bytes in length).
1.3.6.1.2.1.10.3.40.40.20.145	NotificationpmPKT512	current	Packets received and transmitted (512-1023 bytes in length).
1.3.6.1.2.1.10.3.40.40.20.146	NotificationpmPKT1024	current	Packets received and transmitted (1024-1518 bytes in length).
1.3.6.1.2.1.10.3.40.40.20.147	NotificationpmPKT1519	current	Packets received and transmitted (1519 bytes to the MTU in length).
1.3.6.1.2.1.10.3.40.40.20.190	NotificationpmRXGOODFULLFRAMESPEED	current	The rate of received good packets, including framing bits (20 bytes) and FCS bytes
1.3.6.1.2.1.10.3.40.40.20.191	NotificationpmTXGOODFULLFRAMESPEED	current	The rate of transmitted good packets, including framing bits (20 bytes) and FCS bytes
1.3.6.1.2.1.10.3.40.40.20.192	NotificationpmRxfullbgood	current	Trap of Pm: Good full-frame bytes received
1.3.6.1.2.1.10.3.40.40.20.193	NotificationpmTxfullbgood	current	Trap of Pm: Good full-frame bytes transmitted
1.3.6.1.2.1.10.3.40.40.20.194	NotificationpmRXCTLPKTS	current	A count of received control frames
1.3.6.1.2.1.10.3.40.40.20.195	NotificationpmTXCTLPKTS	current	A count of transmitted control frames
1.3.6.1.2.1.10.3.40.40.20.196	NotificationpmTXETHDROP	current	The total number of events in which packets were dropped by the probe due to lack of resources at transmission direction
1.3.6.1.2.1.10.3.40.40.20.197	NotificationpmTXETHOVER	current	Oversize packets transmitted.
1.3.6.1.2.1.10.3.40.40.20.198	NotificationpmTXPKTS	current	The total number of transmitted packets (including bad packets, broadcast packets, and multicast packets).
1.3.6.1.2.1.10.3.40.40.20.199	NotificationpmTXOCTETS	current	The total number of transmitted bytes (including bad-packet bytes and FCS bytes, and excluding framing bits).
1.3.6.1.2.1.10.3.40.40.20.200	NotificationpmRXOCTETS	current	The total number of received bytes (including bad-packet bytes and FCS bytes, and excluding framing bits).
1.3.6.1.2.1.10.3.40.40.20.201	NotificationpmRXPKTS	current	The total number of received packets (including bad packets, broadcast packets, and multicast packets).
1.3.6.1.2.1.10.3.40.40.20.350	NotificationpmVCGRXOCTETS	current	Bytes received by ETH VCG ports.
1.3.6.1.2.1.10.3.40.40.20.351	NotificationpmVCGTXOCTETS	current	Bytes transmitted by ETH VCG ports.
1.3.6.1.2.1.10.3.40.40.20.352	NotificationpmVCGRXPACKETS	current	Packets received by ETH VCG ports.
1.3.6.1.2.1.10.3.40.40.20.353	NotificationpmVCGTXPACKETS	current	Packets transmitted by ETH VCG ports.
1.3.6.1.2.1.10.3.40.40.20.354	NotificationpmVCGRXGOODPACKETS	current	Good Packets Received.
1.3.6.1.2.1.10.3.40.40.20.355	NotificationpmVCGTXGOODPACKETS	current	Good Packets Transmitted.
1.3.6.1.2.1.10.3.40.40.20.356	NotificationpmVCGRXSPEED	current	Full Frame Speed Received.
1.3.6.1.2.1.10.3.40.40.20.357	NotificationpmVCGTXSPEED	current	Full Frame Speed Transmitted.
1.3.6.1.2.1.10.3.40.40.20.567	NotificationpmPORTRXBWUTILIZATION	current	The bandwidth utilization of the received port
1.3.6.1.2.1.10.3.40.40.20.568	NotificationpmPORTTXBWUTILIZATION	current	The bandwidth utilization of the transmitted port
1.3.6.1.2.1.10.3.40.40.20.679	NotificationpmRXBPS	current	Bits per second received.
1.3.6.1.2.1.10.3.40.40.20.680	NotificationpmTXBPS	current	Bits per second of transmitted ethernet port, that is, number of actually transmitted bytes x 8/time unit.
1.3.6.1.2.1.10.3.40.40.20.681	NotificationpmRXPPS	current	Packets per second received.
1.3.6.1.2.1.10.3.40.40.20.682	NotificationpmTXPPS	current	Packets per second of transmitted ethernet port, that is, number of actually transmitted packets/time unit.
1.3.6.1.2.1.10.3.40.40.20.683	NotificationpmETHRXTHROUGHPUTMAX	current	Maximum rate of packets including framing bits (20 bytes) and FCS bytes received by the port.
1.3.6.1.2.1.10.3.40.40.20.684	NotificationpmETHRXTHROUGHPUTMIN	current	Minimum rate of packets including framing bits (20 bytes) and FCS bytes received by the port.
1.3.6.1.2.1.10.3.40.40.20.685	NotificationpmETHRXTHROUGHPUTAVG	current	Average rate of packets including framing bits (20 bytes) and FCS bytes received by the port.
1.3.6.1.2.1.10.3.40.40.20.686	NotificationpmETHTXTHROUGHPUTMAX	current	Maximum rate of packets including framing bits (20 bytes) and FCS bytes transmitted by the port.
1.3.6.1.2.1.10.3.40.40.20.687	NotificationpmETHTXTHROUGHPUTMIN	current	Minimum rate of packets including framing bits (20 bytes) and FCS bytes transmitted by the port.
1.3.6.1.2.1.10.3.40.40.20.688	NotificationpmETHTXTHROUGHPUTAVG	current	Average rate of packets including framing bits (20 bytes) and FCS bytes transmitted by the port.
1.3.6.1.2.1.10.3.40.40.20.692	NotificationpmRXDROPRATIO	current	Packet loss ratio in the ingress direction
1.3.6.1.2.1.10.3.40.40.20.693	NotificationpmTXDROPRATIO	current	Packet loss ratio in the egress direction
1.3.6.1.2.1.10.3.40.40.20.839	NotificationpmPORTRXBWUTILIZATIONMIN	current	Minimum bandwidth utilization of the receive port.
1.3.6.1.2.1.10.3.40.40.20.840	NotificationpmPORTRXBWUTILIZATIONAVG	current	Average bandwidth utilization of the receive port.
1.3.6.1.2.1.10.3.40.40.20.841	NotificationpmPORTRXBWUTILIZATIONMAX	current	Maximum bandwidth utilization of the receive port.
1.3.6.1.2.1.10.3.40.40.20.842	NotificationpmPORTTXBWUTILIZATIONMIN	current	Minimum bandwidth utilization of the transmit port.
1.3.6.1.2.1.10.3.40.40.20.843	NotificationpmPORTTXBWUTILIZATIONAVG	current	Average bandwidth utilization of the transmit port.
1.3.6.1.2.1.10.3.40.40.20.844	NotificationpmPORTTXBWUTILIZATIONMAX	current	Maximum bandwidth utilization of the transmit port.
1.3.6.1.2.1.10.3.40.40.20.868	NotificationpmPortrxbytesavailability868	current	Trap of Pm: Port bandwidth availability
1.3.6.1.2.1.10.3.40.40.20.869	NotificationpmPortrxbytesavailability869	current	Trap of Pm: Port bandwidth availability
1.3.6.1.2.1.10.3.40.40.20.944	NotificationpmRXPBAD	current	Bad packets received.
1.3.6.1.2.1.10.3.40.40.20.945	NotificationpmTXPBAD	current	Bad packets transmitted.
1.3.6.1.2.1.10.3.40.40.20.946	NotificationpmRXPGOOD	current	Good packets received.
1.3.6.1.2.1.10.3.40.40.20.947	NotificationpmTXPGOOD	current	Good packets transmitted.
1.3.6.1.2.1.10.3.40.40.20.957	NotificationpmRXBRDCASTRATIO	current	Ratio of broadcast and multicast packets to all packets in the receive direction.
1.3.6.1.2.1.10.3.40.40.20.958	NotificationpmTXBRDCASTRATIO	current	Ratio of broadcast and multicast packets to all packets in the transmit direction.

MIB Viewer — SNMP MIB Browser & Database

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Frequently Asked Questions

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Is MIB Viewer free to use?

Can I look up a MIB from a specific vendor?

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SNMPv3

SNMP vs Telemetry

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Get started

OPTIX-GLOBAL-PM-TRAPS-MSTP-MIB

Bulk Translate

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