mikej412 wrote: » You can use 3550s in a home lab (and work around/skip any 3560 specific features in any workbook labs you're doing) and use rack rental to lab the 3560 specific features that you may be tested on in the Lab exam.Catalyst 3560 and 3550 Comparison | INE Private VLANs and the IPV6 support are probably the 2 biggest new features -- and Multicast and QoS support are some of the first things I look at for differences between switches.