NOCWiki

show environment fex all power

show log | i power

show environment fex all

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/command/reference/rel_4_2_1_N2_1/NX5000CommandReference/fex-cmd-ref.html

https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus7000/sw/fex/command/reference/n7k_fex_cmd/fex_cmds.html

show int ethernet [port number] counters brief

To display the queuing information including buffer, threshold and queue limit values of a specified interface on a switch that runs Cisco NX-OS 4.2(1)N2(1):

show queuing interface [port number]