Fore-SONET-MIB :: sonetLineCoding

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsFore-SONET-MIBsonetLineCoding

sonetLineCoding

Module: Fore-SONET-MIB

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

OID (numeric): 1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.5

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: This variable describes the line coding for this interface. The B3ZS and CMI are used for electrical SONET signals (STS-1 and STS-3). The Non-Return to Zero (NRZ) and the Return to Zero (RZ) are used for optical SONET signals. This variable is defined in the SONET IETF draft photonic table as sonetPhotonicLineCoding.

What is sonetLineCoding?

The line coding scheme in use on this SONET port: B3ZS or CMI for electrical SONET signals, or NRZ (the default) or RZ for optical signals. An admin reads this to confirm the port's coding matches what's expected for its interface type, electrical versus optical.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.5
snmpwalk -v2c -c public <target> Fore-SONET-MIB::sonetLineCoding

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.5.1
snmpget -v2c -c public <target> Fore-SONET-MIB::sonetLineCoding.1

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::sonetLineCoding 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
1.3.6.1.4.1.326.2.2.1.1.4.1.1.1.5sonetLineCodingFore-SONET-MIB