Which operational command would be used to display diagnostic data and alarms for 1/10/100
Gigabit Ethernet optical transceivers?
A.
show interfaces extensive
B.
show interfaces diagnostics optics
C.
show chassis alarms
D.
show interfaces controller
[[ show interfaces diagnostics optics ]]
https://www.juniper.net/documentation/en_US/junos12.3/topics/reference/command-summary/show-interfaces-diagnostics-optics-ex-series.html
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Description
Display diagnostics data and alarms for Gigabit Ethernet optical transceivers (SFP, SFP+, or XFP) installed in EX Series switches. The information provided by this command is known as digital optical monitoring (DOM) information.
Thresholds that trigger a high alarm, low alarm, high warning, or low warning are set by the transponder vendors. Generally, a high alarm or low alarm indicates that the optics module is not operating properly. This information can be used to diagnose why a transceiver is not working.
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