All MIBs › Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB › mscLpEDS1LofAlarm
mscLpEDS1LofAlarm
Module: Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB
OID (symbolic): Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB::mscLpEDS1LofAlarm
OID (numeric): 1.3.6.1.4.1.562.36.2.1.12.28.16.1.2
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: This attribute indicates whether a LOF (Loss of Frame) alarm state has been entered. The LOF alarm state is entered when LOF defects (for DS1: 2 out of 5 framing bits in error; for E1: 3 consecutive frame alignment patterns in error) have been detected for 3 seconds +/- 0.5 second . If the LOF defects are intermittently occurring, the LOF 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 LOF alarm state is cleared. The condition is cleared when framing has been achieved for 10 seconds +/- 0.5 second.
What is mscLpEDS1LofAlarm?
This object reports whether a Loss of Frame (LOF) alarm is currently active on the EDS1 timing line, declared when framing bit errors, such as 2 of 5 framing bits in error for DS1, persist for about 3 seconds. Admins use this to distinguish framing synchronization problems from a total signal loss, since the port similarly goes disabled until framing is reacquired for 10 seconds. For example, mscLpEDS1LofAlarm reporting on(0) while the LOS alarm is off would point to a framing format mismatch or line quality issue rather than a dead cable.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.12.28.16.1.2 snmpwalk -v2c -c public <target> Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB::mscLpEDS1LofAlarm
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.562.36.2.1.12.28.16.1.2.1 snmpget -v2c -c public <target> Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB::mscLpEDS1LofAlarm.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::mscLpEDS1LofAlarm 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 |
| 1.3.6.1.4.1.562.36.2.1.12.28.16.1.2 | mscLpEDS1LofAlarm | Nortel-MsCarrier-MscPassport-ExternalTimingDS1MIB |