Reference Guide

1074 | S-Series Debugging and Diagnostics
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Environmental monitoring
The S4810 and S4820T components use environmental monitoring hardware to detect transmit power
readings, receive power readings, and temperature updates. To receive periodic power updates, the
enable
optic-info-update interval
command must be enabled. The output in Figure 55-6 displays the environment
status of the RPM.
Figure 55-6. show interfaces transceiver Command Example
Recognize an overtemperature condition
An overtemperature 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 this
condition, look for the system messages in Message 3.
show hardware stack-unit {0-11} unit {0-1}
ipmc-replication
View 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}
register
View 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 the
bShell.
Table 55-3. show hardware Commands
Command Description
FTOS#show interfaces
-- RPM Environment Status --
Slot Status Temp Voltage
--------------------------------------
0 active 33C ok
1 not present