In reply to Wifi>marketing.

Hi Wifi, Thanks for bringing up these points. By disabling DFS/UNII and UNII extended channels other Wi-Fi Vendors are not only decreasing the number of 160MHz channels, they are severely limiting all channels 20/40/80/160MHz by greater than 70%. As you mentioned, depending on your network density, channel widths may vary. High Density deployments typically have 20/40MHz channels while lower density areas will use 80/160MHz channel. No need for you to worry, Cisco Dynamic Bandwidth Selection (DBS) will handle the channel width allocation automatically selecting the best width for each area.

Channels 144, 120, 124, 128 are all part of the UNII-2 Extended band. UNII-2 Extended was first added by the FCC in 2003, initially there where Wi-Fi client devices that did not supported that spectrum. By 2011/2012 all major Wi-Fi clients supported the entire UNII-2 spectrum, so when you enable these channel your network would be coverage-hole free. We recommend you enable those channels on your wireless network today.

Thanks,

Brian