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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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ELTEX-MES-eltBrgMulticast-MIB

6 objects

No module-level DESCRIPTION found.

Imported Objects

ELTEX-MES	eltMesMacMulticast
IF-MIB	InterfaceIndex
INET-ADDRESS-MIB	InetAddress
Q-BRIDGE-MIB	PortList VlanIndex
RADLAN-rlBrgMulticast-MIB	rlIgmpMldSnoopVlanEntry
SNMPv2-SMI	MODULE-IDENTITY OBJECT-TYPE
SNMPv2-TC	RowStatus TEXTUAL-CONVENTION TruthValue

OID	Name	Access	Status	Description
1.3.6.1.4.1.35265.1.23.55.5	NodeeltMesMldSnoop
1.3.6.1.4.1.35265.1.23.55.5.5	TableeltIgmpMldSnoopVlanTable	not-accessible	current	The table lists the per vlan parameters.
1.3.6.1.4.1.35265.1.23.55.5.5.1	RoweltIgmpMldSnoopVlanEntry	not-accessible	current	This table augments existing RADLAN table rlIgmpMldSnoopVlanTable
1.3.6.1.4.1.35265.1.23.55.5.5.1.1	ColumneltIgmpMldSnoopVlanIsImmediateLeaveHostBased	read-write	current	Enable/Disable host based immediate leave on this Vlan
1.3.6.1.4.1.35265.1.23.55.5.5.1.2	ColumneltIgmpMldSnoopVlanCos	read-write	current	CoS value (0-7).
1.3.6.1.4.1.35265.1.23.55.5.5.1.3	ColumneltIgmpMldSnoopVlanReplaceSourceIp	read-write	current	Before forwarding the report packet sent by the host, the source IP address in the packet will be replaced by this IP address. Default value of 0.0.0.0 means t…