Starting with KeeneticOS 3.7, loop detection between LAN ports on the switch and Loopback suppression has been implemented.
The feature works on the built-in MT7530 and RTL8370 switches of Keenetic Peak (KN-2710), Hero (KN-1010/1011), Titan (KN-1810), Skipper (KN-1910), Carrier DSL (KN-2110), Hero 4G (KN-2310), Hero DSL (KN-2410), Titan DSL (KN-2510), Giant (KN-2610), and Speedster (KN-3010).
The following messages will appear in the router's system log:
Network::Interface::Switch: "GigabitEthernet0/0": detected a switching loop to port 2.
Network::Interface::Switch: "GigabitEthernet0/1": detected a switching loop to port 1.
NOTE: Important! Please note the following aspects:
— If loops are detected on some LAN ports, the router continues to function and Internet access is not blocked. Only the LAN ports on which a loop is detected become inoperative.
— Loop detection is always enabled and cannot be deactivated.
— Loop detection works inside the switch and neither the CPU nor RAM are affected, i.e. it does not overload the system.