I have done a fair bit of searching so apologies if I’ve missed the post that mentions this.
Although I can connect wirelessly at greater than 100Mib/s on my RB2011UiAS-2HnD-IN I can’t seem to push more than 100Mib/s of data which made me wonder if the AP is connected to the CPU by a 100Mib/s path. I know the CPU should (conditionally) support greater than 100Mib/s speeds so was wondering if there’s a setting I’m ignorant of or whether the hardware just isn’t going to allow it.
Found this about a similar SOC: http://cykey.ca/~cykey/airport/AR9344.pdf
It talks about supporting 300Mb/s but doesn’t really specifically state that it can push it through to the gig switch.
In theory you should be able to achieve around 20MB/sec. This had to do with Wireless being half-duplex, it still needs to send ACK’s and such so the effective link speed will be around ~60% of the effective link speed. There is a LOT of overhead, much more then on cabled connections. All the links by which the wireless chip and the switch and everything is connected inside of the RB2011 should be able to do that without any problem.
Be sure to enable 40Mhz channels and Dual-Chains!
Also it will require PERFECT connection conditions. Often a link will display 300Mbit while idle, but when monitoring the selected client and the RB2011 you will see it start to fluctuate the more traffic you try to push through it.
Use a DECENT testing methodology such as iperf. You can find my guide here
Then, yes it’s possible to hit around 20MB/sec using 802.11n. Real world performance outside of a testing setup, 10MB/sec is quite ok.
Thank you Quindor, you prompted me to look at all aspects of my testing and I realised that my Macbook Pro was only connecting at 20Mhz width - apparently they only do 40Mhz at 5GHz
Tried a non-Apple laptop and was able to crank out 200+Mb/s so my apologies to all for wasting your time.
Not a waste of time, it might help other people Especially around this topic a lot of myths and ideas exist which don’t really correlate with reality (anymore), so it’s good to test and figure out.
