How to achieve 867 Mbps data rate in air-cap-1702i with air-ct2500 wlan controller.

[vipul lathigara]

Hi,

I have configured air-ct2500 wlan controller with 802.11ac 5GHz (80MHz) but not getting higher bandwidth with d-link dwa171 wifi 802.11ac adapter.

can any body answer.

[singhmanaspratap]

Hi Vipul,

Try the following:

Wireless -- radios-- 802.11a/n-- Configure -- under RF Channel assignment choose assignment method as Custom and set channel width to 80MHz.

Hope this helps. You would need to set it for all the APs. Make sure that channel width is defined as 80MHz in the global settings as well.

Regards,

Manas Pratap Singh

[Prakash Parvathala]

802.11ac only support in 5GHz & You have to set 80MHz channel width as 802.11ac use 4 channels bonding together to give higher throughput. So here is my WLC 802.11a/n/ac band DCA settings.

I have let RRM to determine the Channel allocation & power levels based on the environment. Here what my 3702 AP settles into.

Here is what I see few minutes later on the client association on this AP. As you can see there are 3 clients connected in 802.11ac mode & others with 802.11n in 5GHz band. (Note that I have disable 2.4GHz band on this AP)

Then to measure the throughput, we have measure the upload & download speed with iperf application. I have measured data in each 1s interval for 5min duration.

Here is the result with MacBook Air. Once you connected to the SSID, you will see the data rate as 867Mbps (This is max data rate this client supported & not the actual throughput)

[vipul lathigara]

Thanks.

Mr. Prakash and Mr. Manas.

It works and I have tried the same.

[Prakash Parvathala]

Its good to hear that it works for you, if that is the case please mark this questions a answered/corrected so that it can help to others.

[Daniel McDavid]

FYI: The D-Link DWA-171 is a single-stream 802.11ac adapter. Maximum data rate is 433.3 using 80MHz channel bandwidth and short guard interval. You'll need an adapter capable of 2 spatial streams for 867 datarate.