Well, quoting different contention ratios for different service levels that actually share the same backhaul can only give an indication of the provision, given certain assumptions. In other words, it's pretty useless.
I kinda suspect the 3/2/1 numbers were actually a priority number, but someone mangled them into ratios when they wrote the website.
Edited by richi (Wed 14-Oct-15 19:28:57)