As far as I know in order to use two subnets on one physical cable VLAN's are recommended.
However, is it possible to achieve this (i.e: two subnets on one physical network)
What kind of problems or hidden rocks this way contains?
With VLAN's it's possible to better isolate so users wouldn't easly sniff the other network. But in my environment it's okay if user on one subnet could listen to the traffic on another network. Is it the only problem?