topic Re: How to raise the minimum basic data rate of a 2,4 and 5 GHz wifi access network via the hivemanager? in Aerohive Migrated Content

How to raise the minimum basic data rate of a 2,4 and 5 GHz wifi access network via the hivemanager?

andreas_brueck — Wed, 08 May 2019 18:50:05 GMT

Hello everybody,

i want to raise the minimum basic data rate of our 2,4 (to 18 Mbit/s) and 5 GHz (to 24 Mbit/s ) wifi access network. But i do not know, where i can configure it. If i check the radio profile i didn't find anything about basic data rates. Could anyone help me please?

We are using the on-premises Hivemanager NG (build version 12.8.1.2-NGVAMAY18 ) and a lot of AP230 (HiveOS 8.3r4 Mayberry build-195604 ).

Thank you in advance.

Regard,

Andreas Brück

Re: How to raise the minimum basic data rate of a 2,4 and 5 GHz wifi access network via the hivemanager?

AnonymousM — Wed, 08 May 2019 19:19:55 GMT

Andreas,

You'll do this at the SSID level, not the radio profile. As you have the flexibility to adjust these MBRs per SSID vs. globally like some vendors limit you to. If you expand the SSID and go down to the bottom and choose Customize out to the right of "Optional Settings", you'll be presented a pop-up. The top left section labeled Radios and Rates you can expand the rates on a per technology basis. You'll want to only adjust the 802.11b/g and 802.11a data rates as it is ill advised to adjust any MCS rates needed for 802.11n/ac/ax.

HTH

Brian

Re: How to raise the minimum basic data rate of a 2,4 and 5 GHz wifi access network via the hivemanager?

ashley_finch — Wed, 08 May 2019 19:36:38 GMT

Hi Andreas,

You'll find the minimum data rates within the Policy > SSID > Additional Settings > Optional Settings > Radio and Rates 2.4 GHz 802.11b/g & 5 GHz 802.11a section

Re: How to raise the minimum basic data rate of a 2,4 and 5 GHz wifi access network via the hivemanager?

andreas_brueck — Wed, 08 May 2019 19:48:23 GMT

Hey Brian, hey Ashley,

thank you very much for your help. Can anyone explain me why it is ill advised to adjust any MCS rates needed for 802.11n/ac/ax?

Re: How to raise the minimum basic data rate of a 2,4 and 5 GHz wifi access network via the hivemanager?

AnonymousM — Wed, 08 May 2019 20:10:42 GMT

You're welcome.

While there's no hard set rule for it, there's not a lot of data to prove it useful enough to warrant doing. See here http://divdyn.com/disable-lower-legacy-data-rates/ for one opinion and here - https://getsatisfaction.com/aerohive/topics/disabling-basic-rates-for-802-11n-or-802-11ac for another conversation regarding it.

To me I see it as this. If you're setting your MBR to 12/24, you'd need to maintain a decent enough RSSI/SNR to maintain connected to the APs particular BSSID. In doing that, you're basically indirectly saying that the client would need to stay above a certain signal level and it would rarely if ever need to use the lower MCS rates anyways. The only time it may, would be in a highly congested area where retries get crazy and it drops down to a lower MCS rate and modulation type to try to get the frame to be ACK'd.

Here is a reference sheet for MCS rates and their required RSSI/SNR values - https://www.wlanpros.com/resources/mcs-index-802-11ac-vht-chart/

Re: How to raise the minimum basic data rate of a 2,4 and 5 GHz wifi access network via the hivemanager?

andreas_brueck — Mon, 13 May 2019 15:06:53 GMT

Hey Brian,

thanks again for this useful information. I read it today.

Regards,

Andreas