I was reading a blog yesterday about airtime utilization and the author mentioned that devices are still shipped with legacy rates enabled.
The blog was an excellent well put together piece but the thing I focused on was devices shipping with legacy rates enabled. Being that we are dealing with 802.11ac now I see no reason that we should be dealing with these legacy rates. I realize there are still some devices remaining in production that will require the rates. I think it would be easier to have to manually enable them for the small number of networks that will need them. As opposed to discovering the problem via troubleshooting. Now I think most networks are now trending to newer technology (at least .11n). I have personally never run across anything beyond 802.11 g but I have not been at this for too long.
Going off of my personal experience with devices and networks, the use of these rates will do nothing but run the utilization up. Maybe this is incorrect logic but why do vendors till ship with legacy rates enabled?