I have problem with device SG 300-28. When I try to set port mirroring I get following message: “Lock port Dynamic Enable prevents executing Copy Port Enable”. This message is displayed as in web-interface, as in lcli mode. This is output from the console:
SW(config-if)#port monitor gi15
Port gi16: Lock port Dynamic Enable prevents executing Copy Port Enable
Both ports are in the same VLAN (if it matters). Which command prevents executing “port monitor” ?
You're getting this error because port security is enabled on the port you are trying to mirror. Once you unlock this port and make sure your destination port is vlan 1 then you shouldn't have any problems setting up mirroring.
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