Really? FAIL ARTICLE. The author is meant to use the work SWITCH instead of HUB.
HUBS CANNOT, by definition, manage layer-2 or layer-3 traffic. They are exclusively a layer-1 (physical) implement. Period. Otherwise it is not a hub.
For you're convenience ::
hxxp: www (dot) thegeekstuff (dot) com/2013/09/hubs-switches-routers/
"These types of network hubs are useful for high-traffic situations, such as a gamer's LAN party, where dozens of players may be connecting to the network"
I love this.
Due to the problems involved in hubs and the LACK of CSMA/CD NIC support as well as MAC2MAC L2 routing that a switch provides, this is why you use a switch, *instead of a hub. Too many collisions and dropped packets!