Users Guide

Enabling Environmental Monitoring
The device components use environmental monitoring hardware to detect transmit power readings, receive power readings, and
temperature updates.
To receive periodic power updates, you must enable the following command.
● Enable environmental monitoring.
enable optic-info-update interval
DellEMC#show interfaces tengigabitethernet 1/26/1 transceiver
QSFP 26/1 Serial ID Base Fields
QSFP 26/1 Id = 0x0d
QSFP 26/1 Ext Id = 0x00
QSFP 26/1 Connector = 0x23
QSFP 26/1 Transceiver Code = 0x08 0x00 0x00 0x00 0x00 0x00 0x00 0x00
QSFP 26/1 Encoding = 0x00
QSFP 26/1 Length(SFM) Km = 0x00
QSFP 26/1 Length(OM3) 2m = 0x00
QSFP 26/1 Length(OM2) 1m = 0x00
QSFP 26/1 Length(OM1) 1m = 0x00
QSFP 26/1 Length(Copper) 1m = 0x01
QSFP 26/1 Vendor Rev = A
QSFP 26/1 Laser Wavelength = 38.65 nm
QSFP 26/1 CheckCodeBase = 0x0d
QSFP 26/1 Serial ID Extended Fields
QSFP 26/1 BR max = 0
QSFP 26/1 BR min = 0
QSFP 26/1 Vendor SN = APF12380010GME
QSFP 26/1 Datecode = 120925
QSFP 26/1 CheckCodeExt = 0xf2
[output truncated]
Recognize an Overtemperature Condition
An overtemperature condition occurs, for one of two reasons: the card genuinely is too hot or 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
following system messages:
CHMGR-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]C
To view the programmed alarm thresholds levels, including the shutdown value, use the show alarms threshold command.
Example of the show alarms threshold Command
DellEMC#show alarms threshold
-- Temperature Limits (deg C) --
----------------------------------------------------------------
Minor Off Minor Major Off Major Shutdown
Unit2 55 60 75 80 85
----------------------------------------------------------------
Minor Off Minor Major Off Major Shutdown
Unit3 55 60 75 80 85
1096
Debugging and Diagnostics