Fore-SONET-MIB :: sonetLineAis

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsFore-SONET-MIBsonetLineAis

sonetLineAis

Module: Fore-SONET-MIB

OID (symbolic): Fore-SONET-MIB::sonetLineAis

OID (numeric): 1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.18

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: This variable controls the insertion of line alarm indication signal (AIS_L). When set to sonetLineAisOn, AIS is inserted into the transmit SONET stream. Line AIS insertion results in all bits of the SONET frame being set to 1 prior to scrambling except for the section overhead.

What is sonetLineAis?

Controls whether this port inserts a Line Alarm Indication Signal into its own transmit stream: sonetLineAisOn forces every bit of the SONET frame (except section overhead) to 1 before scrambling. An admin sets this to sonetLineAisOn as a test signal to alert downstream equipment during planned maintenance.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.18
snmpwalk -v2c -c public <target> Fore-SONET-MIB::sonetLineAis

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.18.1
snmpget -v2c -c public <target> Fore-SONET-MIB::sonetLineAis.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.18.1 i <value>

Start monitoring Fore Systems (later Marconi) ForeRunner ATM switch with SONET/SDH port modules with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Fore-SONET-MIB::sonetLineAis OID value, configure state conditions and alerts, and monitor any Fore Systems (later Marconi) ForeRunner ATM switch with SONET/SDH port modules 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
1.3.6.1.4.1.326marconiES1000-MIB
1.3.6.1.4.1.326.2systemsES1000-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
1.3.6.1.4.1.326.2.2.1.1.4foreSonetModuleFore-SONET-MIB
1.3.6.1.4.1.326.2.2.1.1.4.1sonetConfGroupFore-SONET-MIB
1.3.6.1.4.1.326.2.2.1.1.4.1.1sonetConfTableFore-SONET-MIB
1.3.6.1.4.1.326.2.2.1.1.4.1.1.1sonetConfEntryFore-SONET-MIB
1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.18sonetLineAisFore-SONET-MIB