NMS-LLDP-MIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › NMS-LLDP-MIB

Organization: IEEE 802.1 Working Group

Last Updated: 2004-11-22

Category: LAN Management

Description: Manages NMS Communications LLDP neighbor discovery, local system capabilities, and remote device information.

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What Is NMS-LLDP-MIB?

NMS-LLDP-MIB is a vendor MIB from NMS Communications that manages the Link Layer Discovery Protocol (LLDP) implementation on a device, covering local system LLDP timers, per-port LLDP administrative status, and discovery of neighboring devices' capabilities and management addresses. It exposes both configuration data (transmit intervals, hold multipliers, reinitialization delay, per-port admin status) and topology/status data (remote neighbor and management address tables). Its monitoring value is chiefly in software/protocol and topology status: confirming LLDP is enabled and functioning correctly on each port, and using discovered neighbor information to detect unexpected cabling changes, new devices, or lost neighbor relationships, which supports network topology and connectivity health checks. This MIB closely parallels and likely coexists with the standard IEEE 802.1AB LLDP-MIB, reusing similar object naming conventions (lldpMessageTxInterval, lldpPortConfigTable, etc.). It is deployed on NMS Communications switches and other Ethernet infrastructure devices participating in automated network topology discovery, where NMS-LLDP-MIB SNMP monitoring helps confirm neighbor relationships stay consistent over time.

IPNetwork Monitor allows you to monitor SNMP objects defined in NMS-LLDP-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • nms Co., Ltd. switch/router (LLDP topology discovery, vendor unidentified)

Monitoring Examples

An operator would poll lldpPortConfigTable (indexed by lldpPortConfigPortNum) to verify lldpPortConfigAdminStatus is enabled on expected ports and lldpPortConfigNotificationEnable is set for change alerting; comparing entries in lldpConfigManAddrTable over time reveals if a neighboring device's management address has changed or disappeared, which would flag an unexpected topology change such as a swapped cable or a downed neighbor. The global lldpMessageTxInterval and lldpReinitDelay scalars confirm the protocol timing configuration is consistent with network design.

What Can Be Monitored

  • LLDP admin status per port
  • neighbor/remote device discovery
  • management address changes
  • LLDP transmit interval and timers
  • notification enablement per port
Imported Objects

From IANA-ADDRESS-FAMILY-NUMBERS-MIB

AddressFamilyNumbers

From NMS-SMI

nmsOBJECT-IDENTITY

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
NOTIFICATION-GROUP
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

TEXTUAL-CONVENTION
TimeStamp
TruthValue

How to Use in IPNetwork Monitor

Example using lldpStatsTxPortFramesTotal OID:

Select a nms Co., Ltd. switch/router (LLDP topology discovery, vendor unidentified) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type lldpStatsTxPortFramesTotal into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of LLDP frames transmitted by this LLDP agent on the indicated port. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Implements Link Layer Discovery Protocol for network device neighbor identification and topology mapping.

Start monitoring nms Co., Ltd. switch/router (LLDP topology discovery, vendor unidentified) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download NMS-LLDP-MIB