Brocade Mobility Access Point System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 387)

Brocade Mobility Access Point System Reference Guide 377
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Refer to the following for more information on the Path Method SNR screen. These descriptions
apply to both the 2.4 GHz and 5.0/4.9 GHz frequencies.
Select the Path Method Root Path Metric tab to configure the parameters controlling the
calculation of the root path metrics.
Channel Width Configure the channel width that mesh point automatic channel scan should assign to the
selected radio. The available options are:
•
Automatic – Indicates the channel width is calculated automatically. This is the default value.
•
20 MHz – Indicates the width between two adjacent channels is 20 MHz.
•
40 MHz – Indicates the width between two adjacent channels is 40 MHz.
Priority Meshpoint Configure the mesh point to be monitored for automatic channel scan. This is the mesh point that
given priority over other available mesh points. When configured, a mesh is created with this mesh
point. When not configured, a mesh point is automatically selected.
SNR Delta Configure the signal to noise ratio delta value for path selection.
When path selection occurs, this set value is considered for selecting the optimal path. A better
candidate on a different channel must have a signal strength that exceeds this delta value when
compared to the signal strength of the next hop in the mesh network.
SNR Threshold Configure the signal to noise threshold value for path selection.
When the signal strength of the next hop in the mesh network goes below this value, a scan is
triggered to select a better next hop.
Off-channel Duration Configure the duration in the range of 20 - 250 milliseconds for the Off Channel Duration field.
This is the duration that the scan dwells on each channel when performing an off channel scan.