INTEL-CSU-HW-MIB :: csuAlarm

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › INTEL-CSU-HW-MIB › csuAlarm

csuAlarm

Module: INTEL-CSU-HW-MIB

OID (symbolic): INTEL-CSU-HW-MIB::csuAlarm

OID (numeric): 1.3.6.1.4.1.343.6.36.1.1.1.2

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: The currently active alarm condition, if any.

Red alarm corresponds to a Loss Of Signal (LOS), and most commonly occurs when the cable is unplugged or broken.

Blue alarm indicates that the local equipment is properly connected but that the carrier CSU is sending a unique data pattern, indicating that it has lost its remote data source.

Yellow alarm indicates that the local equipment is receiving a valid signal, but this signal indicates that the carrier CSU cannot frmae to a signal from us. This is normal for up to 30 seconds after connection, but if it persists indicates that there is a break in the T1 connection in the direction toward the carrier.

Out Of Framing is any other condition severe enough that the local CSU cannot lock onto the signal from the carrier CSU. This may be because of mismatched configurations. Likely candidates are Line Coding and Framing Format. If these are correctly set at both ends, the line should be tested by the T1 service provider.

What is csuAlarm?

This reports the currently active CSU alarm: csuAlarmRED(2) for Loss of Signal (cable unplugged or broken), csuAlarmBLUE(4) for a properly-connected link where the carrier lost its remote source, csuAlarmYELLOW(8) for a signal the carrier can't frame to (normal briefly after connecting, a problem if it persists beyond 30 seconds), or csuAlarmOUTOFFRAMING(16) for a severe framing mismatch, often from mismatched line coding or framing format. A persistent yellow or out-of-framing alarm points to a configuration mismatch worth checking against the carrier before involving the T1 provider.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.343.6.36.1.1.1.2
snmpwalk -v2c -c public <target> INTEL-CSU-HW-MIB::csuAlarm

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.343.6.36.1.1.1.2.1
snmpget -v2c -c public <target> INTEL-CSU-HW-MIB::csuAlarm.1

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OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.343intelAOLAN-MIB
1.3.6.1.4.1.343.6mib2extEXPRESSGS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.343.6.36csudsuINTEL-CSU-HW-MIB
1.3.6.1.4.1.343.6.36.1csuINTEL-CSU-HW-MIB
1.3.6.1.4.1.343.6.36.1.1csuInfoTableINTEL-CSU-HW-MIB
1.3.6.1.4.1.343.6.36.1.1.1csuInfoEntryINTEL-CSU-HW-MIB
1.3.6.1.4.1.343.6.36.1.1.1.2csuAlarmINTEL-CSU-HW-MIB