Wireless Access

Contributor I

80Mhz channels width?

Currently we are running with 20Mhz channel width on A/G radios, we have recently upgraded all our AP's in our facility to 135/225's should we enable 80Mhz channel widths?

Guru Elite

Re: 80Mhz channels width?

No, it is not recommended to use 80 MHz channels.


Also, if you're mixing 11n (135) and 11ac (225) in the same area, it's recommended to disable VHT (11ac).

Tim Cappalli | Aruba Security TME
@timcappalli | timcappalli.me | ACMX #367 / ACCX #480

Re: 80Mhz channels width?

What is the downside to using 80MHz and 40MHz vs. just 20MHz in an environment with a decent amount of clients on APs? I understand it bonds the channels together, but what does that do to negatively affect clients?

Thank you.

Michael Haring | AIS Consultant
Architecture and Implementation Solutions
Optiv Security Inc. | www.optiv.com
Guru Elite

Re: 80Mhz channels width?

Without using DFS, you only have two 80 mhz channels to work with, which is worse than the 2.4ghz at 3 channels.  Your performance would be impacted by the cochannel intererence of having every other AP on the same 80 mhz channel bundle.

Colin Joseph
Aruba Customer Engineering

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