3 Replies Latest reply on Sep 30, 2013 6:04 AM by nick

    Dynamic RF and Transmit Power

    dalicea New Member

      Hi all,

       

      We are currently running version V2_3_0_09 in VmWare.

      I wanted to know what the differences were with the Dynamic RFs drop down found in each template ("Set Once and Hold, Continuous, none"). We had migrated some APs from the old appliance to the VM and noticed they all stayed on channel one by default. A Calibration did correct this though. The APs are all set to "set once and hold", so will the channels stay this way again until the next calibration? How is memory affected when set to continuous?

       

      Also, I am noticing that the Transmit Power on each AP is 100%. Is there a way to let this be automatically changed by the calibration?

       

       

      Thanks in advance!

       

       

      -Dave

        • Re: Dynamic RF and Transmit Power
          nick Employee

          dalicea

           

          The RF modes allow vWLAN to adjust the radio channel and power settings of the APs under its control whenever vWLAN detects any non-optimal environmental conditions, such as general interference or noise, co-channel interference introduced by a neighboring AP, loss of connectivity to an AP, poor wireless client characteristics (low received signal strength indications (RSSIs), multiple failures or retries, etc.), or a high use load. RF modes are set independently for each radio. By default, the radio is set to Set Once and Hold. You can choose one of the following:

           

          • Disabled indicates the vWLAN’s dynamic RF capabilities are disabled, and the AP’s RF power and channel settings must be configured manually. Select this option if setting channels, TX power, or dynamic RF statically may adjust your manual settings.

           

          • Set Once and Hold (default) indicates the vWLAN only configures the RF power and channel settings for the APs once to achieve optimal RF performance. After the initial configuration is set by dynamic RF, future changes to the channel and power settings must be done manually. If an AP goes down, the neighboring APs will not automatically increase their power levels to fill the coverage hole under this setting.

           

          • Continuous indicates the vWLAN is continuously evaluating the RF environment and modifying the AP’s RF power and channel settings as needed to achieve optimal RF performance. If an AP goes down, the neighboring APs will automatically increase their power levels to fill the coverage hole with this setting enabled. In general, you should not use continuous DynamicRF if your domain is extremely dynamic.

           

          Memory will not be adversely affected regardless of the RF mode set.  The power should be automatically changed during the calibration job if the AP detects neighboring APs during the Calibration.  What model of APs did you happen to migrate to the VM instance?

            • Re: Dynamic RF and Transmit Power
              dalicea New Member

              Thanks for the response! The model of APs in use are 1840s with a few 1800v2s (but it is mostly a 95% 1840 setup). It looks like all the locations we have migrated to VM are set to “Set Once and Hold” but the default channel selected is 1 for all APs with 100% power. Then we manually calibrate and the channel will change, some of the locations power appears to stay at 100% all the time. Maybe the distance between APs is long.

                • Re: Dynamic RF and Transmit Power
                  nick Employee

                  I went ahead and flagged this post as "Assumed Answered". If any of the responses on this thread assisted you, please mark them as Correct or Helpful as the case may be with the applicable buttons. This will make them visible and help other members of the community find solutions more easily. If you have any additional information on this that others may benefit from, please come back to this post to provide an update. If you still need assistance, we would be more than happy to continue working with you on this - just let us know in a reply.