ALC-MIB :: alcTrapReason

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsALC-MIBalcTrapReason

alcTrapReason

Module: ALC-MIB

OID (symbolic): ALC-MIB::alcTrapReason

OID (numeric): 1.3.6.1.4.1.1978.2.10.1.2.1.23

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The reason that the alcLineError trap was generated.

rx-overlength-frames - number of 'received data segments that exceeded N1' exceeded its threshold. (overlength single message segments) invalid-address - number of 'invalid addresses received' exceeded its threshold. rx-T2-expired - number of 'received messages that exceeded T2 timer'exceeded its threshold. (overlength concatenated messages)

What is alcTrapReason?

Read-only enum indicating why the last alcLineError trap was generated (overlength/bad address/T2 timeout). Network teams use this to diagnose specific line quality issues and target remediation.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1978.2.10.1.2.1.23
snmpwalk -v2c -c public <target> ALC-MIB::alcTrapReason

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1978.2.10.1.2.1.23.1
snmpget -v2c -c public <target> ALC-MIB::alcTrapReason.1

Start monitoring Northrop Grumman-Canada Tiger network access device (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the ALC-MIB::alcTrapReason OID value, configure state conditions and alerts, and monitor any Northrop Grumman-Canada Tiger network access device (legacy) 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
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
Numeric OIDNameModule
1.3.6.1.4.1.1978ngcanALC-MIB
1.3.6.1.4.1.1978.2tigerALC-MIB
1.3.6.1.4.1.1978.2.10alcMIBALC-MIB
1.3.6.1.4.1.1978.2.10.1alcLineALC-MIB
1.3.6.1.4.1.1978.2.10.1.2alcLineTableALC-MIB
1.3.6.1.4.1.1978.2.10.1.2.1alcLineEntryALC-MIB
1.3.6.1.4.1.1978.2.10.1.2.1.23alcTrapReasonALC-MIB