Port isolation on the ZyXEL MES-3528 switch

On the test, I isolate the ports from each other, allowing traffic to go only to uplink (the port from which the Internet comes), I have it 25.

Let’s connect to the switch and see the current configuration:

show running-config

Now go into the configuration mode:

configure

Isolate the necessary ports, except the uplink port:

interface port-channel 1-24,26-28
vlan1q port-isolation
exit
exit

Save the configuration:

write memory

The ports on which the vlan1q port-isolation command is written do not see other ports with the same command, but see the ports without it and the switch CPU. Ports without the command vlan1q port-isolation see the ports with it and without it.

See also:
Port isolation on Huawei switches
Configuring Protected Ports on Cisco

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