Fore-Sonet-Ext-MIB :: foreSonetLOSDetected

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

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foreSonetLOSDetected

Module: Fore-Sonet-Ext-MIB

OID (symbolic): Fore-Sonet-Ext-MIB::foreSonetLOSDetected

OID (numeric): 1.3.6.1.4.1.326.2.2.1.1.14.0.1

Node type: NOTIFICATION-TYPE

Description: This trap indicates that the specified SONET port is experiencing Loss Of Signal. Bellcore Document TA-NWT-000253 Section 6.3.1.1.1 states that... A SONET NE shall declare a LOS failure when the LOS defect persists for 2.5 (+- .5) seconds, or when a LOS defect is present and the criteria for LOF failure declaration have been met.

Examples

Send this trap to an SNMP manager — replace <manager> with the IP or hostname of your monitoring server (SNMPv2c):

snmptrap -v2c -c public <manager> '' Fore-Sonet-Ext-MIB::foreSonetLOSDetected
snmptrap -v2c -c public <manager> '' 1.3.6.1.4.1.326.2.2.1.1.14.0.1

Listen for incoming traps on the manager host (-f keeps it in the foreground, -Lo prints to stdout — useful for testing):

snmptrapd -f -Lo -c /dev/null authCommunity log public

Example snmptrapd log entry:

zoo11-linux.zoo [UDP: [192.168.30.111]:63562->[192.168.30.10]:162]:
  DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (105870410) 12 days, 6:05:04.10
  SNMPv2-MIB::snmpTrapOID.0 = OID: Fore-Sonet-Ext-MIB::foreSonetLOSDetected

SNMPv3 example:

snmptrap -v3 -l authPriv -u snmpv3user -a SHA -A "AuthPass1" -x AES -X "PrivPass1" <manager> '' Fore-Sonet-Ext-MIB::foreSonetLOSDetected

Start monitoring Fore Systems (later Marconi) ForeRunner ATM switch with SONET/SDH interfaces (extensions) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Fore-Sonet-Ext-MIB::foreSonetLOSDetected OID value, configure state conditions and alerts, and monitor any Fore Systems (later Marconi) ForeRunner ATM switch with SONET/SDH interfaces (extensions) 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
1.3.6.1.4.1.326.2.2.1.1.14foreSonetMibFore-Sonet-Ext-MIB
1.3.6.1.4.1.326.2.2.1.1.14.0.1foreSonetLOSDetectedFore-Sonet-Ext-MIB