The switch is used to distribute or reproduce any LAN ports. Because IGMP spoofing and IGMP V3 I was Entertain use important. And that works very well. My Entertain works, there are at switching from unicast to multicast any trailer or still images or dropouts. The not-using multicast connections are also not flooded with meaningless packets. So just as it should be. The switch is a practical addition to the home network. Just a pity that there is no PoE (has been going on in the basement Speedport los).