DOT3-EPON-MIB :: dot3MpcpDiscoveryWindowsSent

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsDOT3-EPON-MIBdot3MpcpDiscoveryWindowsSent

dot3MpcpDiscoveryWindowsSent

Module: DOT3-EPON-MIB

OID (symbolic): DOT3-EPON-MIB::dot3MpcpDiscoveryWindowsSent

OID (numeric): 1.3.6.1.2.1.155.1.1.2.1.3

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: A count of discovery windows generated. The counter is incremented by one for each generated discovery window. This object is applicable for an OLT and an ONU. At the OLT, it has a distinct value for each virtual interface. At the ONU, the value should be zero. Discontinuities of this counter can occur at re-initialization of the management system and at other times, as indicated by the value of the ifCounterDiscontinuityTime object of the Interface MIB module.

What is dot3MpcpDiscoveryWindowsSent?

This counts the discovery windows the OLT has generated to let new ONUs register on the PON (expected to be zero at an ONU). A high or rapidly climbing count relative to the number of registered ONUs can indicate ONUs repeatedly failing to complete registration.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.155.1.1.2.1.3
snmpwalk -v2c -c public <target> DOT3-EPON-MIB::dot3MpcpDiscoveryWindowsSent

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.155.1.1.2.1.3.1
snmpget -v2c -c public <target> DOT3-EPON-MIB::dot3MpcpDiscoveryWindowsSent.1

Start monitoring EPON OLT/ONU (802.3ah EPON MPCP, vendor-neutral IEEE standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOT3-EPON-MIB::dot3MpcpDiscoveryWindowsSent OID value, configure state conditions and alerts, and monitor any EPON OLT/ONU (802.3ah EPON MPCP, vendor-neutral IEEE standard) from a single console.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAXON-MIB
1.3.6.1.2.1mib_2AXON-MIB
Numeric OIDNameModule
1.3.6.1.2.1.155dot3EponMIBDOT3-EPON-MIB
1.3.6.1.2.1.155.1dot3EponObjectsDOT3-EPON-MIB
1.3.6.1.2.1.155.1.1dot3EponMpcpObjectsDOT3-EPON-MIB
1.3.6.1.2.1.155.1.1.2dot3MpcpStatTableDOT3-EPON-MIB
1.3.6.1.2.1.155.1.1.2.1dot3MpcpStatEntryDOT3-EPON-MIB
1.3.6.1.2.1.155.1.1.2.1.3dot3MpcpDiscoveryWindowsSentDOT3-EPON-MIB