CISCO 3650 G 24 ports switch
%CDP-4-DUPLEX_MISMATCH: duplex mismatch discovered on GigabitEthernet0/24 (not half duplex), with Switch GigabitEthernet0/1 (half duplex)
I am getting this
my all 24 ports are setup as duplex auto but still getting this
Please help to resolve
Someone has connected another switch to your 24 port switch. The two switches are not auto negotiating. If its an approved switch, it would be best to set the speed/duplex on both interfaces between the two switches.