360 | S-Series Debugging and Diagnosticsw w w . d e l l . c o m | s u p p o r t . d e l l . c o mEnvironmental monitoringThe S4810 components use environmental monitoring hardware to detect transmit power readings, receivepower readings, and temperature updates. To receive periodic power updates, the enable optic-info-updateinterval command must be enabled. The output in Figure 14-6 displays the environment status of the RPM.Figure 14-6. show interfaces transceiver Command ExampleRecognize an over-temperature conditionAn over-temperature condition occurs, for one of two reasons:• The card genuinely is too hot.• A sensor has malfunctioned.Inspect cards adjacent to the one reporting the condition to discover the cause.• If directly adjacent cards are not normal temperature, suspect a genuine overheating condition.• If directly adjacent cards are normal temperature, suspect a faulty sensor.When the system detects a genuine over-temperature condition, it powers off the card. To recognize thiscondition, look for the system messages in Message 3.show hardware stack-unit {0-11} unit {0-1}ipmc-replicationView the Multicast IPMC replication table from the bShell.show hardware stack-unit {0-11} unit {0-1}port-stats [detail]View the internal statistics for each port-pipe (unit) on per port basis.show hardware stack-unit {0-11} unit {0-1}registerView the stack-unit internal registers for each port-pipe.show hardware stack-unit {0-11} unit {0-1}table-dump {table name}View the tables from the bShell through the CLI without going into thebShell.Message 3 Over Temperature Condition System MessagesCHMGR-2-MAJOR_TEMP: Major alarm: chassis temperature high (temperature reaches or exceeds threshold of[value]C)CHMGR-2-TEMP_SHUTDOWN_WARN: WARNING! temperature is [value]C; approaching shutdown threshold of [value]CTable 14-3. show hardware CommandsCommand DescriptionFTOS#show interfaces-- RPM Environment Status --Slot Status Temp Voltage--------------------------------------0 active 33C ok1 not present
