GW-EPON-MIB

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › GW-EPON-MIB

Organization: Organization

Last Updated: 2008-04-10

Category: Technology: EPON/PON

Description: Gateway EPON MIB for managing Ethernet Passive Optical Network OLT/ONU devices and subscriber provisioning.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) 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.

What Is GW-EPON-MIB?

GW-EPON-MIB is a vendor-specific private MIB (auto-generated via AdventNet Agent Toolkit's MibEditor) for Ethernet Passive Optical Network (EPON) OLT/ONU chassis-based equipment; the source module itself uses generic placeholder text for ORGANIZATION and CONTACT-INFO, so the specific manufacturer isn't confirmable from the MIB text alone, though the gwEponDevTable includes its own deviceVendor string object for per-device vendor reporting. It models a full EPON chassis hierarchy: gwEponDevTable exposes device type, operational status, alarm status, firmware/software/hardware versions, and system uptime for each managed OLT/ONU device; gwEponBoardTable reports per-slot board type, operational status, alarm level, temperature, and CPU/memory usage for chassis line cards; and ponPortTable tracks each PON port's ONU count (ponPortMaxOnu/ponPortCurrOnu), operational and alarm status/mask bits, available/actual bandwidth, and APS (automatic protection switching) control/status. Because it combines chassis health (board temperature, CPU/memory usage), PON-port bandwidth utilization, and per-ONU alarm-level bitmaps in one module, it is well suited for monitoring board overheating or overload, PON port oversubscription (ponPortCurrOnu approaching ponPortMaxOnu), and individual ONU alarm conditions via the OnuAlarmLevelList bitmap. It depends on the GWTT-SMI enterprise tree for its device anchor point and standard SNMPv2-TC/SNMPv2-SMI textual conventions, and is deployed on EPON OLT chassis and their subordinate ONUs in FTTH/FTTB access networks; administrators can download the GW-EPON-MIB file to load it into their MIB browser when managing these EPON deployments.

IPNetwork Monitor allows you to monitor SNMP objects defined in GW-EPON-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

  • EPON OLT/ONU chassis equipment (vendor not confirmable from MIB source; generic OEM placeholder text)

Monitoring Examples

An operator polls ponPortCurrOnu against ponPortMaxOnu to check PON port capacity headroom, and checks boardTemperature and boardCpuUsage for the housing line card; a port nearing its max ONU count combined with high board CPU usage would flag a PON port approaching oversubscription.

What Can Be Monitored

  • device operational/alarm status per OLT/ONU
  • board temperature and CPU/memory usage
  • PON port current vs. max ONU count
  • PON port available/actual bandwidth
  • PON port alarm status/mask bits
  • per-ONU alarm-level bitmap
Imported Objects

From GWTT-SMI

devicesOBJECT-IDENTITY

From SNMPv2-SMI

Counter32
Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
TimeTicks

From SNMPv2-TC

DateAndTime
DisplayString
MacAddress
RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using ponPortOnuLpbTxFrms OID:

Select an EPON OLT/ONU chassis equipment (vendor unconfirmed, generic OEM MIB) 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 ponPortOnuLpbTxFrms 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 frames transmit by this ONU Logical Link. 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

EPON (Ethernet Passive Optical Network) device management including OLT and ONU board types and configurations.

Start monitoring EPON OLT/ONU chassis equipment (vendor unconfirmed, generic OEM MIB) 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 GW-EPON-MIB