168 CHAPTER 5: PATH BUILDER S330 DIAGNOSTICS AND PERFORMANCE STATISTICSAlarms Common to Several InterfacesTable 10 describes major alarms common to several PathBuilder S330/S310interfaces.Queue 1 OverThresholdThe congestion threshold forQueue 1was exceeded.Check and correct VC connections.Check and adjust VI shaper values.Check and adjust incoming trafficvolume. Check for faulty IMA links,which may reduce traffic handling for agroup.Queue 2 OverThresholdThe congestion threshold forQueue 2was exceeded.Check and correct VC connections.Check and adjust VI shaper values.Check and adjust incoming trafficvolume. Check for faulty IMA links,which may reduce traffic handling for agroup.Queue 3 OverThresholdThe congestion threshold forQueue 3 was exceeded.Check and correct VC connections.Check and adjust VI shaper values.Check and adjust incoming trafficvolume. Check for faulty IMA links,which may reduce traffic handling for agroup.SAR Initialize Failure Problem with the SAR chip onthe MCPU. MCPU SAR failedinitialization.Replace the unit.System ClockRevertedThe system clock has revertedto a higher priority clock.Information only. This alarm occursonly if the Clock Mode is set toRevertive on the System ClockConfiguration menu.System power up System is powered up. Information only.Write Session Takenby Super UserA super user has changed aread-only session to read-write.Information only.Table 10 Alarms Common to Several ModulesAlarm Meaning Troubleshooting StepsAlarm IndicationSignal(AIS)An incoming alarm indicationsignal (AIS) indicates a LOSproblem is occurring on theline upstream of theequipment connected to thisport.Check your locally connectedDS3/E3/OC3 equipment, or ask yourservice provider to trace the source ofthe AIS signal.Far End ReceiveFailureThe far end equipment has aproblem with the signal it isreceiving from the PathBuilderdevice.Check for a defective cable betweenthe PathBuilder device networkinterface port and your serviceprovider’s network interface unit. Anopen transmit line can cause thiscondition. Check the LBO setting of theport.(continued)Table 9 MCPU and CTX Module (System) Alarms (continued)Alarm Meaning Troubleshooting Steps
