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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.

Try it: sysDescr (1.3.6.1.2.1.1.1) → Read more →

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SNMP Fundamentals

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Signal quality and status OIDs for both the modem and CMTS side, what changed across DOCSIS versions, and how DOCS-IF3/IF31-MIB extend it for bonded and OFDM channels.

Linux snmpd passthrough

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

ChrComIfEthernetLVM-MIB

12 objects

No module-level DESCRIPTION found.

Imported Objects

Chromatis-MIB	chrComIfEthernet
EthernetTypes-MIB MISSING	QoSTypeMappingEnum RowStatusEnum
RFC1213-MIB	DisplayString
SNMPv2-SMI	Counter32 Integer32 OBJECT-TYPE Unsigned32

OID	Name	Access	Status	Description
1.3.6.1.4.1.3695.1.2.5.1	TablechrComIfEthernetLVMTable	not-accessible	current	This table lists all LVMs and their associated configuration parameters (e.g. QoS Mapping Table)
1.3.6.1.4.1.3695.1.2.5.1.1	RowchrComIfEthernetLVMEntry	not-accessible	current
1.3.6.1.4.1.3695.1.2.5.1.1.1	ColumnchrComIfEthernetEquipIndex	read-write	current
1.3.6.1.4.1.3695.1.2.5.1.1.2	ColumnchrComIfEthernetLocalElmIndex	read-write	current	ELM index within card (up to 2 ELMs per card; current card has only 1)
1.3.6.1.4.1.3695.1.2.5.1.1.3	ColumnchrComIfEthernetLvmID	read-write	current	ID of LVM within this ELM
1.3.6.1.4.1.3695.1.2.5.1.1.4	ColumnchrComIfEthernetvlanName	read-write	current	Global name of VLAN, assigned by NMS. Used only for display
1.3.6.1.4.1.3695.1.2.5.1.1.5	ColumnchrComIfEthernetGlobaVlanID	read-write	current	Global ID of VLAN assigned by NMS. Used only by NMS
1.3.6.1.4.1.3695.1.2.5.1.1.6	ColumnchrComIfEthernetMemberID	read-write	current	Member-ID of this LVM within its Global VLAN
1.3.6.1.4.1.3695.1.2.5.1.1.7	ColumnchrComIfEthernetQoSMappingType	read-write	current	Defines what type of QoS Mapping is used for this LVM
1.3.6.1.4.1.3695.1.2.5.1.1.8	ColumnchrComIfEthernetDefaultLQC	read-write	current	Default LQC, to be used if mapping cannot be done or configured to None
1.3.6.1.4.1.3695.1.2.5.1.1.9	ColumnchrComIfEthernetQoSMappingTable	read-write	current	Mapping Table for QoS codes
1.3.6.1.4.1.3695.1.2.5.1.1.10	ColumnchrComIfEthernetRowStatus	read-write	current	This object is used to create a new row or modify or delete an existing row in this table

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