H3C Technologies H3C Intelligent Management Center - Manual (Page 141)

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{
Dynamic Channel Selection—Set whether to enable dynamic channel selection. This
parameter enables the AC to scan channels in real time, so that each fit AP can use an
optimal channel and avoid using channels where interferences such as radar and microwave
ovens exist. Use this option together with the Channel Lock option in fit AP radio
configuration to configure fit APs to accept dynamic channel selection by the AC. For more
information, see " Modifying radio parameters for a fit AP ."
{
Dynamic Power Selection—Set whether to enable dynamic power selection. This parameter
enables the AC to dynamically adjust the transmission rate of fit APs according to the
wireless environment. Use this option together with the Power Lock option in fit AP radio
configuration to configure fit APs to accept dynamic power selection by the AC. For more
information, see " Modifying radio parameters for a fit AP ."
{
Adjacency Factor—Set the maximum number of neighbors. When the number of APs
managed by the AC reaches the limit, the AC automatically adjusts channels and
transmission power of all APs based on RRM configurations. For example, if the maximum
number of neighbors is four, the AC adjusts channels and transmission power of all APs
when the number of APs managed by the AC reaches four.
{
Calibration Interval (M)—Enter the calibration interval for dynamic channel/power selection.
With dynamic channel/power selection enabled, the AC performs dynamic channel/power
selection and applies the adjusted channel/power to the AP at each calibration interval.
6. Click OK.
Configuring an RRM calibration group
With DFS or TPC configured for a radio, the AC calculates the channel quality or power of the radio
at the calibration interval. When the result meets a trigger condition, the AC selects a new channel or
power for the radio.
In a severe interference environment, frequent channel or power adjustments can affect user access to
the WLAN network. In this case, you can configure an RRM calibration group to keep the channel or
power of radios in the group unchanged within the specified hold-down time. The channel and power
of radios not in the RRM calibration group are adjusted normally.
When the hold-down time expires, the AC calculates the channel or power again. If the result meets a
trigger condition, the channel or power is changed, and the new channel or power keeps unchanged
within the specified hold-down time. This mechanism continues.
Viewing RRM calibration group list
1. Click the Service tab.
2. From the navigation tree, select WLAN Manager > Resource Management > ACs. The AC List
page displays all ACs.
3. Click the device label of the AC whose RRM calibration groups you want to view.
4. Click the RRM Calibration Group link in the RRM Management area to the right of the page.
The RRM Calibration Group List appears.
RRM Calibration Group List
{
ID—ID of the RRM calibration group.
{
Channel Hold Time (M)—Channel hold-down time of the radios in the RRM calibration group.
{
Power Hold Time (M)—Power hold-down time of the radios in the RRM calibration group.
{
Description—Description for the RRM calibration group.