Fore-SONET-MIB :: sonetPathAISs

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsFore-SONET-MIBsonetPathAISs

sonetPathAISs

Module: Fore-SONET-MIB

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

OID (numeric): 1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.7

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The number of seconds in which path Alarm Indication Signal (AIS) has occurred. A path AIS is asserted when an all-ones pattern is detected in the pointer bytes (H1 and H2) for three consecutive frames. It is cleared when a valid pointer is detected for three consecutive frames. AIS indicates that an upstream failure has been detected.

What is sonetPathAISs?

Counts the number of seconds during which this port detected a path Alarm Indication Signal, asserted when an all-ones pattern appears in the H1/H2 pointer bytes for three consecutive frames, indicating an upstream failure. An admin uses this counter to confirm a problem lies upstream of this port rather than locally.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.7
snmpwalk -v2c -c public <target> Fore-SONET-MIB::sonetPathAISs

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.7.1
snmpget -v2c -c public <target> Fore-SONET-MIB::sonetPathAISs.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::sonetPathAISs 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
1.3.6.1.4.1.326.2.2.1.1.4.2sonetStatsGroupFore-SONET-MIB
1.3.6.1.4.1.326.2.2.1.1.4.2.3sonetPathTableFore-SONET-MIB
1.3.6.1.4.1.326.2.2.1.1.4.2.3.1sonetPathEntryFore-SONET-MIB
1.3.6.1.4.1.326.2.2.1.1.4.2.3.1.7sonetPathAISsFore-SONET-MIB