topic Re: editing "DCA channel list" for 5Ghz band in Wireless

editing "DCA channel list" for 5Ghz band

Andrey128 — Mon, 05 Jul 2021 14:40:46 GMT

on wireless controller I found that there are only few radio channels are available for usage

From my understanding, that may cause a problem for clients. Is there any command available to add channels to "DCA channel list" or this list is an attribute of the "Country" which is configured on the WLC?!

I've tried to disable 5GHz wifi and add manually channels, for ex. insert this "40, 44, 48, 52, 56, 60, 64, 149, 153, 157, 161" into that text field, however that filed seems inactive and not allowing to do such action.

Re: editing "DCA channel list" for 5Ghz band

Ric Beeching — Thu, 21 Sep 2017 10:11:11 GMT

HI Andrey,

What boxes are available for you below to tick? You should be able to tick the ones you want and, if you would like to support all channels (recommended), select the Extended UNII-2 box as well. If those boxes are not available, what country is the WLC configured for?

Re: editing "DCA channel list" for 5Ghz band

Andrey128 — Thu, 21 Sep 2017 13:21:34 GMT

these only channels are available:

and the system did not allow me to enable "Extended UNII-2 channels" after I disabled 5GHz

This is fo Malaysia country, I cannot believe that government alow to use only 5 channels, may it be not good coding from the vendor?!

Re: editing "DCA channel list" for 5Ghz band

Ric Beeching — Thu, 21 Sep 2017 13:45:26 GMT

That does seem pretty odd as it is restricted to UNII-3 only. What country codes are supported, is it only Malaysia or does your WLC have multiple countries? Can you do the following on CLI:

show country

show sysinfo

Thanks,

Ric

Re: editing "DCA channel list" for 5Ghz band

Andrey128 — Fri, 22 Sep 2017 02:37:58 GMT

Thanks Ric,

yesterday I've made a test, added additional conutry into the wireless controller and amount of channels in "DCA channel list" increased (hence amount and channel numbers in "DCA channel list" is attribute of a country),

but access points, which are designed to work in Malaysia, will only work on these channels "149, 153, 157, 161, 165", this is as I understand, by design from the vendor.

Re: editing "DCA channel list" for 5Ghz band

Ric Beeching — Fri, 22 Sep 2017 02:40:46 GMT

Thanks for the info! That seems unusual as I was looking through some Malaysia documentation and it mentioned support for the other bands so not sure why there would be a restriction to UNII-3 only on those APs.

If you do enable support for multiple countries then the WLC will default settings to the most restrictive country though this may not apply to channels on different country APs.

Cheers,

Ric

Re: editing "DCA channel list" for 5Ghz band

Scott Fella — Fri, 22 Sep 2017 02:41:06 GMT

We ran into this issue at one of our Malaysia sites and the AP’s were a -C and should of been a -K. -C only allows those uni3 channels but -K allows more.

Re: editing "DCA channel list" for 5Ghz band

Scott Fella — Fri, 22 Sep 2017 02:43:06 GMT

Take a look here: https://www.cisco.com/c/dam/assets/prod/wireless/wireless-compliance-tool/index.html

Re: editing "DCA channel list" for 5Ghz band

Andrey128 — Fri, 22 Sep 2017 05:54:53 GMT

yep, I have only AIR-CAP2702E-C-K9 access points deployed

data from https://www.cisco.com/c/dam/assets/prod/wireless/wireless-compliance-tool/index.html is confusing, because on the wireless controller it is shown that it is expecting (Indoor: -C, Outdoor: -C) for 5GHz and (Indoor: -ACE, Outdoor: -AEC) for 2.4 Ghz:

with this I guess access point with -K regulatory domain will disable its 5 and 2.4 Ghz channels