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Search, upload, browse, or download from a database of over 11,000 SNMP MIBs. MIB Viewer lets you look up any MIB object by name, OID, or number, 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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ZYXEL-PORT-BASED-VLAN-MIB

5 objects

The subtree for port-based VLAN

Imported Objects

BRIDGE-MIB	dot1dBasePort
Q-BRIDGE-MIB	PortList
SNMPv2-SMI	-- RFC2578 MODULE-IDENTITY OBJECT-TYPE
ZYXEL-ES-SMI	esMgmt

OID	Name	Access	Status	Description
1.3.6.1.4.1.890.1.15.3.63	IdentityzyxelPortBasedVlan			The subtree for port-based VLAN
1.3.6.1.4.1.890.1.15.3.63.1	NodezyxelPortBasedVlanSetup
1.3.6.1.4.1.890.1.15.3.63.1.1	TablezyxelPortBasedVlanTable	not-accessible	current	The table contains port-based VLAN configuration.
1.3.6.1.4.1.890.1.15.3.63.1.1.1	RowzyxelPortBasedVlanEntry	not-accessible	current	An entry contains port-based VLAN configuration.
1.3.6.1.4.1.890.1.15.3.63.1.1.1.1	ColumnzyPortBasedVlanPorts	read-write	current	Set port members for each port. This allows packets to be forwarded to these port members.