NMS-EPON-ONU

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › NMS-EPON-ONU

Description: MIB for ONU identity, vendor ID, hardware and software versions, and LLID associations in NMS EPON optical access networks

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What Is NMS-EPON-ONU?

NMS-EPON-ONU is a MIB used to manage Optical Network Units (ONUs) in EPON (Ethernet Passive Optical Network) access deployments, covering ONU identity, vendor identification, hardware and software version, and LLID (Logical Link ID) association data. It exposes identity and inventory-style data for each ONU on a PON, including which vendor manufactured the unit and which LLID(s) it is associated with on the shared fiber. Searching for NMS-EPON-ONU MIB details typically surfaces the per-ONU vendor, hardware/software version, and LLID association objects described above. In monitoring terms its primary value is software/hardware inventory tracking - confirming an ONU's hardware revision and firmware/software version, and validating that it is correctly registered/associated to its OLT port via LLID - functioning as a lightweight asset and provisioning-status check rather than a deep performance-counter MIB. No module description or sample objects were available to confirm dependency on other standard PON MIBs, though EPON MIBs of this style typically build on IEEE 802.3ah conventions for the underlying link layer. It is deployed by access-network operators managing EPON OLT/ONU deployments for residential or business fiber broadband service.

IPNetwork Monitor allows you to monitor SNMP objects defined in NMS-EPON-ONU. 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 Communications EPON ONU (Optical Network Unit)
  • NMS Communications EPON OLT/access network equipment

Monitoring Examples

No specific object or table names were provided in the source data for this module; based on its description, an operator would typically poll per-ONU identity objects to confirm hardware and software/firmware version strings and LLID association match expected values, flagging a mismatch as a provisioning or firmware-upgrade issue.

What Can Be Monitored

  • ONU vendor identity
  • ONU hardware version
  • ONU software/firmware version
  • LLID association
  • ONU registration status
Imported Objects

From INET-ADDRESS-MIB

InetAddressIPv6

From NMS-EPON-LLID

llidIfIndexOBJECT-TYPE

From NMS-SMI

nmsEPONGroupOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

Counter
IpAddress

From RFC1213-MIB

DisplayString

From SNMPv2-TC

MacAddress
PhysAddress
RowStatus
TruthValue

How to Use in IPNetwork Monitor

Example using rxPower OID:

Select an EPON ONU (Optical Network Unit) 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 rxPower 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. It reports the ONU's CATV module received optical power, in units of 0.1 dBm. 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 an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the received power falls below -100 (i.e. -10.0 dBm), which typically indicates a degrading fiber link or connector. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

NMS EPON ONU trap MIB providing status, alarm, and module monitoring for Ethernet PON optical network units.

Start monitoring NMS Communications EPON ONU/OLT access equipment 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-EPON-ONU