Configure a Roaming Assist PolicyNEW!

Use this procedure to create, modify, or delete a Roaming Assist policy.

  1. Go to Policies > Roaming Assist.
    If any policies exist, they appear in tabular form in the Roaming Assist window. The total number of configured policies is shown in parentheses.
  2. Choose from the following actions:
    • Select to create a new Roaming Assist policy.
      1. Assign a Name to the policy (up to 32 characters) to distinguish this Roaming Assist policy from others with similar attributes.
      2. Select Add to create the new policy.
      3. Proceed to the next step.
    • From under the Actions column:
      • Select adjacent to a policy to modify it. Proceed to the next step.
      • Select adjacent to a policy to delete it.
  3. Configure the Basic parameters as described in Roaming Assist Policy Parameters.
    Table 1. Roaming Assist Policy Parameters
    Parameter Description
    Action

    Specify the action to be invoked on the client once it reaches the specified threshold value. The threshold values are configured based on the client load. Options are:

    • assisted-roam — Provides 802.11v assisted roaming facility to the client
    • deauth (default) — De-authenticates the client.
    • log — Generates a log
    Note: In all three cases an event is generated. However, the message generated differs and is based on the action specified.
    Aggresiveness

    Set a roaming aggressiveness value for wireless clients. Options are:

    • Highest — De-authenticates the client in case of any degradation in the client‘s link quality. When selected, the access point considers only the RSSI value of the last message received from the client.
    • Lowest (default) — De-authenticates the client only in case of significant degradation in the client‘s link quality. With this option, the access point uses a weighted average [80% of decaying average + 20% of last seen RSSI] as the final reported RSSI value.
    • Medium — This is an intermediate setting between not roaming and performance.
    • Medium-High — Allows roaming even if performance degrades. With this option, the AP calculates the client‘s signal strength based on average received signal as well as last received signal level, weighted towards the last received value.
    • Medium-Low — Allows roaming even if performance becomes average. With this option, the AP calculates the client‘s signal strength based on average received signal as well as last received signal level, weighted towards the average value.
    Detection Threshold

    Assign a detection threshold RSSI value determining when a client is monitored. Clients with poor RSSI values are monitored more frequently. Set an RSSI value in the range –100 dBm to –40 dBm. The default is –75 dBm.
    Disassociation Time Specify the interval after which a disassociation message is to be sent. Set a value in the range 1–10 seconds. The default value is 5 seconds.
    Handoff Count Specify the number of times a client can exceed the configured Handoff Threshold value before an action is invoked. Enter a value in the range 1–10. The default value is 3.
    Handoff Threshold Assign a threshold RSSI value determining when client handoff action is to be taken. When a client's detected RSSI exceeds the value set here and meets the value set in Handoff Count, an action is invoked. Set an RSSI value in the range –100 dBm to –40 dBm. The default value is -80 dBm.
    Note: If the client‘s RSSI increases beyond the set handoff-threshold, it is removed from the queue for monitoring and action invocation.
    Monitoring Interval Specify the interval (duration) during which clients are monitored to determine whether their RSSI is below the specified Handoff Threshold. Set the interval in the range 1–60 seconds. The default value is 5 seconds.
    Sampling Interval Specify the interval between two successive client samplings to determine their RSSI value. Set a sampling interval in the range 5–60 seconds. The default value is 15 seconds.
    Note: Higher RSSI values, indicate stronger signals.
  4. After you have completed configuring the settings, choose from the following actions:
    1. Select Revert to restore default settings or restore the last saved settings.
      Note

      Note

      You cannot restore default settings after applying or saving changes.
    2. Select Apply to commit the configured settings.
      Note

      Note

      This does not permanently save the settings you configured. If you perform a Reload (warm reboot), applied settings will be lost.
    3. Select Save to commit and save the configured settings.
      Note

      Note

      If you do not select Apply or Save, the settings that you configured are not saved when you move away from the configuration window.

9037761-05 Rev AA