Tests for these switches
For traffic flooding, try using smartbits if you can get your hands on the kit, at tradeshows they claim to be able to generate traffic to find a switches breaking point, could be a useful metric.
Would be interested to see how standards compliant layer 3 switches are, do they interop with Netgear, Dlink or Allied Telesyn, even each other in terms of vlans etc
One flaw in smart switches that we saw about 10 years ago in the data center with an SMC l3 switch, and more recently on a client site with Netgear L3 switches is something I suspect that has occured for the Australian who commented above. In the lab, the switches will run forever without a problem, but in the field, they lock up periodically, the SMC used to lock up about once a month, and the Netgears about once a week, but both run fine in the lab. Both scenarios took an internet feed over cable into the switches. Once you take that internet feed out, put it into a 5 port dumb switch, and then link the dumb switch to the smart one, the lockups do not re-occur. This to my mind is a good reason to run with Cisco etc in this applications. Never investigated the problem further, but assume it is something like an ARP cache filling up to breaking point when hosts on the switch are being bombarded by probes from script kiddies. Replicating that in the lab and determining susceptibility would be useful, then you can class the switch as suitable for front line use or for behind a firewall only use.