Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 536)

524 Brocade Mobility RFS Controller System Reference Guide
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NOTE
With this most recent release of Brocade Mobility software, an BR7161 model Access Point can be
deployed as a vehicular mounted modem (VMM) to provide wireless network access to a mobile
vehicle (car, train etc.). A VMM provides layer 2 mobility for connected devices. VMM does not
provide layer 3 services, such as IP mobility. For VMM deployment considerations, see
Vehicle
Mounted Modem (VMM) Deployment Considerations .
NOTE
When using 4.9GHz, the root preferences selection for the radio’s preferred interface still displays
as 5GHz.
7. Set the following Root Path Preference:
8. Set the following Path Method Hysteresis:
9. Select the Auto Channel Selection tab.
Monitor Critical Resources Enable this feature to allow dynamic conversion of a mesh point from root to non-root when there is
a critical resource failure. This option is disabled by default.
Monitor Primary Port Link Enable this feature to allow dynamic conversion of a mesh point from root to non-root during a link
down event. This option is disabled by default.
Wired Peer Excluded Select this option to exclude a mesh from forming a link with another mesh device that's a wired
peer. This option is disabled by default.
Path Method Use the drop-down menu to select the method (criteria) used for selecting the root path. The
following options are available:
None – Select this to indicate no criteria used in root path selection.
uniform – Select this to indicate that the path selection method is uniform. When selected, two
paths will be considered equivalent if the average value is the same for these paths.
mobile-snr-leaf – Select this if this access point is mounted on a vehicle or a mobile platform
(BR7161 models only). When selected, the path to the route will be selected based on the Signal To
Noise Ratio (SNR) to the neighbor device.
snr-leaf – Select this to indicate the path with the best signal to noise ratio is always selected.
Preferred Neighbor Specify the MAC address of a preferred mesh point neighbor.
Preferred Root Specify the MAC address of a a preferred root device.
Preferred Interface Use the drop-down menu to set the preferred mesh point interface to 2.4GHz, 4.9 GHz or 5.0GHz.
Minimum Threshold Enter the minimum value for SNR above which a candidate for the next hop in a dynamic mesh
network is considered for selection. This field along with Signal Strength Delta and Sustained Time
Period are used to dynamically select the next hop in a dynamic mesh network.
Signal Strength Delta Enter a delta value in dB. A candidate for selection as a next hop in a dynamic mesh network must
have a SNR value higher than the set value. This field, along with the Minimum Threshold and
Sustained Time Period, are used to dynamically select the next hop in a dynamic mesh network.
Sustained Time Period Enter the duration (in seconds or minutes) for the duration a signal must sustain the constraints
specified in the Minimum Threshold and Signal Strength Delta path hysteresis value. These values
are used to dynamically select the next hop in a dynamic mesh network.
SNR Delta Range Select the root selection method hysteresis (from 1 - 100dB) SNR delta range a candidate must
sustain. The default setting is 1 dB.