All MIBs › Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB › mscLpEDS1LosAlarm
mscLpEDS1LosAlarm
Module: Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB
OID (symbolic): Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB::mscLpEDS1LosAlarm
OID (numeric): 1.3.6.1.4.1.562.36.2.1.12.28.16.1.1
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: This attribute indicates whether a LOS (Loss of Signal) alarm state has been entered. A LOS alarm is declared after LOS defects have been observed and accumulated for a period of 2 seconds +/- 0.5 second . A LOS defect is detected upon observing all zeros for 150 ms . If the LOS defects are intermittently occurring, the LOS defect accumulator is decremented at a rate of 1/10 of the incrementing rate (alarm integration ratio of 1/10), with all measurements based on a 200 ms polling cycle. The port goes into an operational state of disabled until the LOS alarm state is cleared. The LOS alarm state is cleared when LOS defects are absent for 10 seconds +/- 0.5 second.
What is mscLpEDS1LosAlarm?
This object reports whether a Loss of Signal (LOS) alarm is currently active on the EDS1 timing line, declared after LOS defects, meaning all zeros observed for 150ms, accumulate for about 2 seconds. Admins treat this as a critical signal-integrity check, since the port is forced into a disabled operational state until the LOS condition clears for 10 seconds. For example, mscLpEDS1LosAlarm reporting on(0) indicates the physical timing line has lost signal entirely, likely due to a cable disconnect or upstream equipment failure.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.12.28.16.1.1 snmpwalk -v2c -c public <target> Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB::mscLpEDS1LosAlarm
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.12.28.16.1.1.1 snmpget -v2c -c public <target> Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB::mscLpEDS1LosAlarm.1
Start monitoring Nortel MsCarrier MscPassport (Passport) carrier switch, CPeD Control Processor (external DS1 timing) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB::mscLpEDS1LosAlarm OID value, configure state conditions and alerts, and monitor any Nortel MsCarrier MscPassport (Passport) carrier switch, CPeD Control Processor (external DS1 timing) from a single console.
OID Breakdown
Upper-level ancestors (11 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.562 | nortel | CPM-NORTEL-MIB |
| 1.3.6.1.4.1.562.36 | msCarrier | Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB |
| 1.3.6.1.4.1.562.36.2 | mscPassport | Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB |
| 1.3.6.1.4.1.562.36.2.1 | mscComponents | Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB |
| 1.3.6.1.4.1.562.36.2.1.12 | mscLp | Nortel-MsCarrier-MscPassport-LogicalProcessorMIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.562.36.2.1.12.28 | mscLpEDS1 | Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB |
| 1.3.6.1.4.1.562.36.2.1.12.28.16 | mscLpEDS1OperTable | Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB |
| 1.3.6.1.4.1.562.36.2.1.12.28.16.1 | mscLpEDS1OperEntry | Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB |
| 1.3.6.1.4.1.562.36.2.1.12.28.16.1.1 | mscLpEDS1LosAlarm | Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB |