Thanks for guidelines. Anyway I decided to resign of usage vlans. Instead of them I restricted communications between ports using "Port Isolation". Thanks again…:)

@GRL So, once again in another configuration: AND port 42 -> PVID 100 So when I copy data from port 50 to 52, port 42 also gets flooded. When I change the PVID for port 52 to 60 everything is fine....

Hi. I’m a new user of SG3452X. Hardware Version: SG3452X 1.20 Firmware Version: 1.20.9 Build 20250422 Rel.77329 The switch is working in standalone mode (without Omada and as a single in the local...