Fore-E1-MIB :: e1PlcpYellows

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › Fore-E1-MIB › e1PlcpYellows

e1PlcpYellows

Module: Fore-E1-MIB

OID (symbolic): Fore-E1-MIB::e1PlcpYellows

OID (numeric): 1.3.6.1.4.1.326.2.2.1.1.8.2.2.1.8

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The number of seconds in which Yellow alarm errors were detected by the PLCP (Physical Layer Convergence Protocol) receiver. Yellow alarm is asserted when 10 consecutive yellow signal bits are set to logical 1. Yellow signals are used to alert upstream terminals of a downstream failure in order to initiate trunk conditioning on the failure circuit.

What is e1PlcpYellows?

Counts seconds during which the PLCP receiver saw a Yellow alarm (10 consecutive yellow signal bits set), an upstream signal used to alert this side of a downstream failure so trunk conditioning can be triggered.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.326.2.2.1.1.8.2.2.1.8
snmpwalk -v2c -c public <target> Fore-E1-MIB::e1PlcpYellows

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.326.2.2.1.1.8.2.2.1.8.1
snmpget -v2c -c public <target> Fore-E1-MIB::e1PlcpYellows.1

Start monitoring Fore Systems (later Marconi) ForeRunner ATM switch (E1 trunk port module) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Fore-E1-MIB::e1PlcpYellows OID value, configure state conditions and alerts, and monitor any Fore Systems (later Marconi) ForeRunner ATM switch (E1 trunk port module) from a single console.

OID Breakdown

Upper-level ancestors (11 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.326foreCOMMON-GOLF-MIB
1.3.6.1.4.1.326.2systemsCOMMON-GOLF-MIB
1.3.6.1.4.1.326.2.2atmSwitchFore-Common-MIB
1.3.6.1.4.1.326.2.2.1hardwareFore-Common-MIB
1.3.6.1.4.1.326.2.2.1.1asxFore-Common-MIB
Numeric OIDNameModule
1.3.6.1.4.1.326.2.2.1.1.8foreE1Fore-E1-MIB
1.3.6.1.4.1.326.2.2.1.1.8.2e1StatsGroupFore-E1-MIB
1.3.6.1.4.1.326.2.2.1.1.8.2.2e1PlcpTableFore-E1-MIB
1.3.6.1.4.1.326.2.2.1.1.8.2.2.1e1PlcpEntryFore-E1-MIB
1.3.6.1.4.1.326.2.2.1.1.8.2.2.1.8e1PlcpYellowsFore-E1-MIB