TP-Link TL-SG2216 Reference Manual page 126

Syntax
show port isolation interface [ gigabitEthernet port ]
Parameter
port —— The number of Ethernet port you want to show its forward port list, in
the format of 1/0/2.
Command Mode
Privileged EXEC Mode and Any Configuration Mode
Example
Display the forward-list of port 2:
TL-SG2424# show port isolation interface gigabitEthernet 1/0/2
Display the forward-list of all Ethernet ports:
TL-SG2424# show port isolation interface
114