topic Re: Network is worse after turning on smart rf in ExtremeWireless (WiNG)

Network is worse after turning on smart rf

Tuan_Nguyen1 — Fri, 23 Jul 2021 09:02:42 GMT

Hi you

I use controller RFS4000 and 10 AP 7161 and 6 AP 7562. When I turn on Smart RF it seems Wifi Network is worse.

Should I manually set transmit power for each AP?

Re: Network is worse after turning on smart rf

Ovais_Qayyum — Fri, 23 Jul 2021 09:28:33 GMT

Hi Tuan,

I will start by asking basic questions:

1- Is Smart-RF applied to the RF-Domain you want to use it for?

2- Is “Smart Monitoring” in Smart-RF settings enabled?

3- How does the channel distribution look like?

You should probably clear Smart-RF config once to let the APs converge on to the proper channels, go to Operations > rf-domain-name > SMART RF to clear Smart-RF config. It’s an intrusive change and would impact client connectivity for the period while APs perform OCS and Smart-RF assigns correct channels.

You can also share Smart-RF energy graph, Smart-RF history and Smart-RF interfering APs details, all of which are available under Statistics > rf-domain > SMART RF tab.

Regards,

Ovais

Re: Network is worse after turning on smart rf

Tuan_Nguyen1 — Fri, 23 Jul 2021 09:44:24 GMT

Thank you for your response, I would like to provide the following information:

1 - Is Smart-RF applied to the RF-Domain you want to use it for? => YES

2- Is “Smart Monitoring” in Smart-RF settings enabled? => YES

Re: Network is worse after turning on smart rf

Ovais_Qayyum — Fri, 23 Jul 2021 10:08:34 GMT

I see some DFS channels assigned to you your APs which will trigger Radar hits and APs will have to back off for certain period of time as per the DFS regulation, which will impact the client connectivity. Use following command to check if your APs got Radar hits:

VX9000-Primary~#service show wireless radar-status on ?
DEVICE-NAME AP/Controller name

If you see Radar alarms, then you need to change the channel setting in the Smart RF policy and only use non-DFS channels. I am not sure where are you based out of but the suggested channel list for the US country code with DFS (UNII2) channels excluded is 36,40,44,48, 149,153,157,161,165.

Regards,

Ovais

Re: Network is worse after turning on smart rf

Tuan_Nguyen1 — Fri, 23 Jul 2021 10:16:33 GMT

Hi you

Radar not detected, and im use only band 2.4. And 5ghz is disabled

Re: Network is worse after turning on smart rf

Ovais_Qayyum — Fri, 23 Jul 2021 10:45:34 GMT

As per the output, only few 5GHz radios are offline, most are ON and have DFS channel assigned to them. So, if you are not using them just disable them in the AP profile to keep things simple. Afterwards, please send following command outputs. Let’s take a look at some configuration and what the APs are seeing.

VX9000-Primary~# enable

VX9000-Primary~#show running-config rf-domain <rf-domain-name>

VX9000-Primary~#show running-config smart-rf-policy <policy name>

VX9000-Primary~#show wireless radio on <rf-domain-name>

VX9000-Primary~#show smart-rf channel-distribution on <rf-domain-name>

VX9000-Primary~#show smart-rf interfering-ap on <rf-domain-name>

VX9000-Primary~# show smart-rf radio neighbors on <rf-domain-name>

VX9000-Primary~# show smart-rf history on <rf-domain-name>

Regards,

Ovais

Re: Network is worse after turning on smart rf

Tuan_Nguyen1 — Fri, 23 Jul 2021 14:07:24 GMT

Hi you

Thanks for your support. Seems to be having problems with wifi Radio 7161-KITHUAT-119. Please help me to configure it properly

Please see the full log here:

https://drive.google.com/file/d/18MDarpW1qkCDpEjo2iS1dkDYRMzNyNJ-/view?usp=sharing

Re: Network is worse after turning on smart rf

ckelly — Fri, 23 Jul 2021 20:08:38 GMT

Tuan, what do you mean by “worse”?

You say that when you “turned on Smart RF” that the WiFi Network got worse. How so? What are you seeing that tells you it got worse?

Before you enabled Smart RF, had you gone through and statically assigned channel and power settings to all of the APs?

Re: Network is worse after turning on smart rf

Ovais_Qayyum — Fri, 23 Jul 2021 20:57:04 GMT

Tuan,

According to “show wireless radio default” command output, some of your APs have static power assigned on them, these APs are 7161-KITHUAT-119:R1, 7161-TK01-199:R1 and AP7562-DA..E7-139:R1, please remove the Tx power overrides for 2.4GHz radio or by setting the 2.4GHz radio power to “Smart” in the AP device context to match the profile settings.

Check AP 7161-KITHUAT-119 if it has got any connectivity issues, its being constantly added to and removed from the Smart-RF which will disturb the operation.

2021-07-23 13:03:36    Radio Added              Radio 7161-KITHUAT-119:R2 (84-24-8D-D3-51-E0) added2021-07-23 13:03:36    Radio Added              Radio 7161-KITHUAT-119:R1 (84-24-8D-D3-59-D0) added2021-07-23 13:03:36    AP Connected             AP 7161-KITHUAT-119 master connectivity established2021-07-23 13:03:21    Radio Removed            Radio 7161-KITHUAT-119:R2 (84-24-8D-D3-51-E0) removed2021-07-23 13:03:21    Radio Removed            Radio 7161-KITHUAT-119:R1 (84-24-8D-D3-59-D0) removed2021-07-23 13:03:21    AP Timeout               AP 7161-KITHUAT-119 master connectivity timed out2021-07-23 12:53:21    Radio Added              Radio 7161-KITHUAT-119:R2 (84-24-8D-D3-51-E0) added2021-07-23 12:53:21    Radio Added              Radio 7161-KITHUAT-119:R1 (84-24-8D-D3-59-D0) added2021-07-23 12:53:21    AP Connected             AP 7161-KITHUAT-119 master connectivity established I am not sure if this AP is un-adopting and re-adopting due to connectivity issues, on the controller “show adoption log adopter” command output will help look into that.

Regards,

Ovais

Re: Network is worse after turning on smart rf

Tuan_Nguyen1 — Sat, 24 Jul 2021 08:57:13 GMT

Hi you

After turning on Smart-RF, the signal strength is reduced, before that I left the default configuration for APs. It seems that my configuration is not correct, hope you can help me to configure it more standard (QOS, Smart-rf ...)

Re: Network is worse after turning on smart rf

Tuan_Nguyen1 — Sat, 24 Jul 2021 09:11:55 GMT

Re: Network is worse after turning on smart rf

Ovais_Qayyum — Thu, 29 Jul 2021 09:47:41 GMT

The max. power Smart-RF configuration allows you to set is 20dBm but it does not mean we should do it. The best practice is to set it at least 3db less to give it some wiggle room for power changes, specially when you have “Neighbor Recovery” and “Coverage Hole Recovery” enabled. If you set it to max 20dbm, Smart-RF won’t have any room to increase the power further to mitigate a coverage hole situation.

Regards,

Ovais

Re: Network is worse after turning on smart rf

Tuan_Nguyen1 — Thu, 29 Jul 2021 10:10:25 GMT

Hi you

With each AP, the maximum power is 30 dbm. Why is it only 20dbm for Smart-RF?

Re: Network is worse after turning on smart rf

Ovais_Qayyum — Thu, 29 Jul 2021 10:33:41 GMT

Smart RF ensures that you stay within regulatory limits. For example, ETSI regulation allows the max Tx power of 100mW (20dBm) on 2.4GHz radio.

How much power is allowed depends on the "country code" you have configured under the RF-Domain settings. Based on the country code the AP will load it's power tables. Power regulation varies by countries and by channels that are allowed in those countries. The Tx power setting that you have highlighted in the screenshot takes into account this fact, you may be allowed to set 23dBm in certain countries. Therefore, the Tx power setting parameter allows for higher power settings to accommodate that.

You can find the max. power and channel related info for your country code by using the following command:

ap310-752888#show wireless regulatory device-type ap310i fr
--------------------------------------------------------------------------------
# Channel Set Power(mW) Power (dBm) Placement DFS CAC(mins)
--------------------------------------------------------------------------------
1 1-13 32 15 Indoor Not Required 0
2 36-48 50 17 Indoor Not Required 0
3 52-64 50 17 Indoor Required 1
4 100-116 80 19 Indoor Required 1
5 120-128 80 19 Indoor Required 1
6 132-140 80 19 Indoor Required 1
--------------------------------------------------------------------------------

Regards,

Ovais

Re: Network is worse after turning on smart rf

Tuan_Nguyen1 — Thu, 29 Jul 2021 14:42:13 GMT

Thank you, I am in Vietnam and it is true that the maximum power is only up to 20dBm.

I'm administering an outdoor wifi system and don't know if my system is working properly or not?

Can you help me with basic commands (CLI or GUI) or exercises to test my system at the simplest level?

Re: Network is worse after turning on smart rf

Ovais_Qayyum — Fri, 30 Jul 2021 02:38:41 GMT

Maybe you can start by providing the following information to help us get the baseline idea about your installation:

1- Send us the running configuration from controller, do “show running-config” and then copy and paste the output in a text file.

2- We would need information on the antenna model and type.

3- Antenna height.

4- Type of client devices.

5- Total coverage area that you intend to cover with the no. of APs you have available.

6- Client roaming/mobility requirements.

If you don’t want to reveal the details of the deployment here, you can send this info to me directly at mqayyum@extremenetworks.com, I will check the information and make suggestions if any, otherwise, I will direct you to our GTAC team.

Regards,

Ovais

Re: Network is worse after turning on smart rf

Tuan_Nguyen1 — Fri, 30 Jul 2021 14:44:00 GMT

Hi Ovais

I have sent you an email, please check.