switch port isolation

Whatever you have in mind...

The GS724TS - dated from summer 2009 in it's core - does certainly allow configuring and operating multiple VLANs according to Dot1q, aka. IEEE 802.1Q, just like any other Netgear Plus, Smart, or Managed switch.

Should you really seeking for port isolation - so it will not send from one isolated port to another - what could be useful in a multi-tenant environment, for example, where clients should be unable to send traffic to each other, you need to look into the manged switch class, regardeless which brand. In this case, you can configure certain ports on a device in isolation mode. Ports that are in isolation mode are allowed to communicate only to upstream ports, and not to downstream ports. This improves the security of the network and provides a flexible network solution, coming at a cost.