MIB Viewer — SNMP MIB Browser & Database

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How MIB files are structured →

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Try an OID lookup: sysDescr (1.3.6.1.2.1.1.1) →

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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.

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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-PKT-SDHOH-MIB

50 objects

This mib specifies the port configuration information of sdh tunnel

Imported Objects

OPTIX-BOARD-MANAGE-MIB	optixLogBoardId optixLogSubCardId
OPTIX-OID-MIB	optixProvisionPtn
SNMPv2-CONF	MODULE-COMPLIANCE OBJECT-GROUP
SNMPv2-SMI	MODULE-IDENTITY OBJECT-TYPE Unsigned32

OID	Name	Access	Status	Description
1.3.6.1.2.1.10.4.50.34	IdentityoptixPktSdhOh			This mib specifies the port configuration information of sdh tunnel
1.3.6.1.2.1.10.4.50.34.1	NodeoptixPktSdhOhGroup
1.3.6.1.2.1.10.4.50.34.1.1	TableoptixPktSdhPortOhTable	not-accessible	current	This table describes the SDH port configurations.
1.3.6.1.2.1.10.4.50.34.1.1.1	RowoptixPktSdhPortOhEntry	not-accessible	current	This entry describes the SDH port configurations.
1.3.6.1.2.1.10.4.50.34.1.1.1.1	ColumnoptixPktSdhPortId	not-accessible	current	This object indicates the port number of theSDH port.
1.3.6.1.2.1.10.4.50.34.1.1.1.2	ColumnoptixPktSdhSRJ0Mode	read-write	current	This object indicates the J0 byte to be actual received mode. 0: sdh, 1: sdhcrc, 3: singlecharacter
1.3.6.1.2.1.10.4.50.34.1.1.1.3	ColumnoptixPktSdhSRJ0Value	read-write	current	This object indicates the value of J0 byte to be received.
1.3.6.1.2.1.10.4.50.34.1.1.1.4	ColumnoptixPktSdhSTJ0Mode	read-write	current	This object indicates the mode of the J0 byte to be sent. 0: sdh, 1: sdhcrc, 3: singlecharacter
1.3.6.1.2.1.10.4.50.34.1.1.1.5	ColumnoptixPktSdhSTJ0Value	read-write	current	This object indicates the value of J0 byte to be sended condignly.
1.3.6.1.2.1.10.4.50.34.1.1.1.6	ColumnoptixPktSdhRJ0Mode	read-only	current	This object indicates the actual received J0 byte mode.
1.3.6.1.2.1.10.4.50.34.1.1.1.7	ColumnoptixPktSdhRJ0Value	read-only	current	This object indicates the value of actual received J0 byte.
1.3.6.1.2.1.10.4.50.34.1.1.1.8	ColumnoptixPktSdhLoopMode	read-write	current	This object indicates the loopback mode of the optical port. 0: noloop, 1: inloop, 2: outloop
1.3.6.1.2.1.10.4.50.34.1.1.1.9	ColumnoptixPktSdhLaserStatus	read-write	current	This object indicates theenable status of the laser. 1: open, 0: close
1.3.6.1.2.1.10.4.50.34.1.1.1.10	ColumnoptixPktSdhLSRStatus	read-only	current	This object indicates the online information of the laser with the hot swapping function. 1: onLine, 0: offLine
1.3.6.1.2.1.10.4.50.34.1.1.1.11	ColumnoptixPktSdhLSRDistance	read-only	current	This object indicates the transmission distance of the laser.
1.3.6.1.2.1.10.4.50.34.1.1.1.12	ColumnoptixPktSdhAisCheck	read-write	current	This object indicates the status of the Ais alarm.
1.3.6.1.2.1.10.4.50.34.1.2	TableoptixPktSdhVC4OhTable	not-accessible	current	This table describes the SDH VC4 channel configurations.
1.3.6.1.2.1.10.4.50.34.1.2.1	RowoptixPktSdhVC4OhEntry	not-accessible	current	Thisentry describes the SDH VC4 channel configurations.
1.3.6.1.2.1.10.4.50.34.1.2.1.1	ColumnoptixPktSdhVC4HP	not-accessible	current	This object indicates the high-order VC4 channel ID.
1.3.6.1.2.1.10.4.50.34.1.2.1.2	ColumnoptixPktSdhSTJ1Mode	read-write	current	This object indicates the J1 byte to be transmitted mode condignly. 0: sdh, 1: sdhcrc, 2: sonet, 3: singlecharacter
1.3.6.1.2.1.10.4.50.34.1.2.1.3	ColumnoptixPktSdhSTJ1Value	read-write	current	This object indicates the value of J1 byte to be actual transmitted.
1.3.6.1.2.1.10.4.50.34.1.2.1.4	ColumnoptixPktSdhSRJ1Mode	read-write	current	This object indicates the J1 byte to be received mode. 0: sdh, 1: sdhcrc, 2: sonet, 3: singlecharacter
1.3.6.1.2.1.10.4.50.34.1.2.1.5	ColumnoptixPktSdhSRJ1Value	read-write	current	This object indicates the value of J1 byte to be received condignly.
1.3.6.1.2.1.10.4.50.34.1.2.1.6	ColumnoptixPktSdhRJ1Mode	read-only	current	This object indicates the actual received J1 byte mode. 0: sdh, 1: sdhcrc, 2: sonet, 3: singlecharacter
1.3.6.1.2.1.10.4.50.34.1.2.1.7	ColumnoptixPktSdhRJ1Value	read-only	current	This object indicates the value of the actual received J1 byte.
1.3.6.1.2.1.10.4.50.34.1.2.1.8	ColumnoptixPktSdhSTC2Value	read-write	current	This object indicates the value ofC2 byte to be transmitted condignly. 0: uneq, 1: unsp, 2: tugs, 3: tulock, 4: asyn, 5: develop, 18: a140, 19: atm, 20: man, 2…
1.3.6.1.2.1.10.4.50.34.1.2.1.9	ColumnoptixPktSdhSRC2Value	read-write	current	This object indicates the value ofC2 byte to be received condignly. 0: uneq, 1: unsp, 2: tugs, 3: tulock, 4: asyn, 5: develop, 18: a140, 19: atm, 20: man, 21: …
1.3.6.1.2.1.10.4.50.34.1.2.1.10	ColumnoptixPktSdhRC2Value	read-only	current	This object indicates the value of actual received C2 byte.
1.3.6.1.2.1.10.4.50.34.1.3	TableoptixPktSdhVC12OhTable	not-accessible	current	This table describes the SDH VC12 channel configurations.
1.3.6.1.2.1.10.4.50.34.1.3.1	RowoptixPktSdhVC12OhEntry	not-accessible	current	Thisentry describes the SDH VC12 channel configurations.
1.3.6.1.2.1.10.4.50.34.1.3.1.1	ColumnoptixPktSdhVC12SerType	not-accessible	current	This object indicates the service type.
1.3.6.1.2.1.10.4.50.34.1.3.1.2	ColumnoptixPktSdhVC12LP	not-accessible	current	This object indicates the loopback low-order channel ID of the VC12 channels.
1.3.6.1.2.1.10.4.50.34.1.3.1.3	ColumnoptixPktSdhVC12LoopMode	read-write	current	This object indicates the VC12 loopback mode of the optical port. 0: noloop, 1: inloop, 2: outloop
1.3.6.1.2.1.10.4.50.34.1.4	TableoptixPktSdhVC12OhJVTable	not-accessible	current	This table contains basic configuration information of SDH VC12 tunnel
1.3.6.1.2.1.10.4.50.34.1.4.1	RowoptixPktSdhVC12OhJVEntry	not-accessible	current	Thisentry describes basic configuration information of SDH VC12 tunnel
1.3.6.1.2.1.10.4.50.34.1.4.1.1	ColumnoptixPktSdhSTJ2Mode	read-write	current	This object indicates the mode of the J2 byte to be transmitted. 0: sdh, 3: singlecharacter
1.3.6.1.2.1.10.4.50.34.1.4.1.2	ColumnoptixPktSdhSTJ2Value	read-write	current	This object indicates the value of J2 byte to be transmitted condignly. 0: sdh, 3: singlecharacter
1.3.6.1.2.1.10.4.50.34.1.4.1.3	ColumnoptixPktSdhSRJ2Mode	read-write	current	This object indicates the J2 byte to be received mode condignly.
1.3.6.1.2.1.10.4.50.34.1.4.1.4	ColumnoptixPktSdhSRJ2Value	read-write	current	This object indicates the value of J2 byte to be received condignly.
1.3.6.1.2.1.10.4.50.34.1.4.1.5	ColumnoptixPktSdhRJ2Mode	read-only	current	This object indicates the actual received J2 byte mode.
1.3.6.1.2.1.10.4.50.34.1.4.1.6	ColumnoptixPktSdhRJ2Value	read-only	current	This object indicates the value of the actual received J2 byte.
1.3.6.1.2.1.10.4.50.34.1.4.1.7	ColumnoptixPktSdhSTV5Value	read-write	current	This object indicates the mode of the V5 byte to be sent.
1.3.6.1.2.1.10.4.50.34.1.4.1.8	ColumnoptixPktSdhSRV5Value	read-write	current	This object indicates the value of the V5 byte to be received.
1.3.6.1.2.1.10.4.50.34.1.4.1.9	ColumnoptixPktSdhRV5Value	read-only	current	This object indicates the value of the actual received V5 byte.
1.3.6.1.2.1.10.4.50.34.1.4.1.10	ColumnoptixPktSdhRetimingMode	read-write	current	This object indicates the retiming mode.
1.3.6.1.2.1.10.4.50.34.1.4.1.11	ColumnoptixPktSdhVc12Frm	read-write	current	This object indicates the E1 frame format of VC-12 channels.
1.3.6.1.2.1.10.4.50.34.1.4.1.12	ColumnoptixPktSdhVC12UserSlotNum	read-write	current	This object indicates the number of free timeslots for VC-12 channel users.
1.3.6.1.2.1.10.4.50.34.1.5	TableoptixPktSdhSwitchCESTable	not-accessible	current	This table allows TDM boards to support SDH/CES mode switching.
1.3.6.1.2.1.10.4.50.34.1.5.1	RowoptixPktSdhSwitchCESEntry	not-accessible	current	This node describes an entity of the function that allows TDM boards to support SDH/CES mode switching.
1.3.6.1.2.1.10.4.50.34.1.5.1.1	ColumnoptixPktSdhPortSrvMod	not-accessible	current	The port mode for SDH STM-1 services. 0: SDH, 1: CES

MIB Viewer — SNMP MIB Browser & Database

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Frequently Asked Questions

What is a MIB browser?

What is an OID lookup tool?

Is MIB Viewer free to use?

Can I look up a MIB from a specific vendor?

Guides & Resources

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SNMPv3

SNMP vs Telemetry

Understanding MIBs

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Get started

OPTIX-PKT-SDHOH-MIB

Bulk Translate

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