I am using SG300 - 28 ports as core switch and SG200 - 26 ports as distributed switch. I want to establish port channel between distributed switch and core switch. The port channel will act as trunk port to carry multiple VLAN. I tried to configure LAG on SG300 but when I added port into LAG, I saw error "Port gi19 belongs to a VLAN..". I also saw the same error on switch SG200. I think switch SG300 and SG200 don't support multiple VLAN on LAG. Is it correct ?