sample

#create port group
mirroring-group 5 local

#select port that you want to be monitored >> for example 1/0/1
mirroring-group 4 mirroring-port GigabitEthernet 1/0/1 both

#define monitor port, where you are plugged in notebook / wireshark, e.g. 1/0/24
mirroring-group 4 monitor-port GigabitEthernet 1/0/24

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