IntermediateLocked
Protected Ports for Host Isolation
Harden the campus access edge by isolating same-switch hosts using protected ports. You will configure switchport protected on both host-facing access interfaces so PC1 and PC2 cannot communicate at Layer 2, while all endpoints still reach the default gateway R1. This is a deterministic Layer-2 security control that mimics lightweight private-VLAN isolation on a single switch. Focus is on SW1 only; R1 and hosts are pre-provisioned.