The command can be run to completely isolate Layer 2 and Layer 3 of different interfaces in a VLAN. (Use lowercase letters to supplement the command, which cannot be abbreviated.)
The command port-isolate enable is used on Huawei switches to completely isolate traffic between ports within the same VLAN, both at Layer 2 and Layer 3 levels. This is typically used in carrier hotel or enterprise guest environments for security.
“The port-isolate enable command isolates all traffic between ports in the same VLAN, including L2 and L3 traffic. It is commonly used for private VLAN-like functionality.”
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[Reference:, HCIE-Datacom Switching Guide – VLAN Isolation Mechanisms, Huawei S Series Switches – Port Isolation Configuration, , ]
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