ProSoft Technology RLX2-IHx Series User Manual page 86

Configuring a Radio - Detailed Configuration
User Manual
In applications where the mobile platform is traveling a known path, it is
necessary to have an unambiguous option when it reaches a roam point. If
multiple Parent radios are in range at the roam point, the radio may choose to
roam to the wrong Parent radio.
The Repeater radio uses the R
for every roam. Due to topology variances, there may be one or two coverage
areas that would operate better with different settings for these roam parameters.
The following settings allow for Parent Assisted roaming by advertising these
parameter values to any Child Repeater radio that associates to this unit. You
can enable each parameter separately. Only enabled parameters are advertised
to Child Repeater radios.
Parameter Description
Disable FT When checked this disables Fast Transition (FT) roaming in this unit and FT capability is
not advertised in this unit's beacons.
Note: With FT disabled, the roam duration could double and roams are no longer
'hitless' as there may be some frame loss in the Parent-to-Child direction.
FT should be enabled other than a few exceptional circumstances. For example, if a 3rd
party client device will not associate to this unit because FT is enabled, or if the RSSI to
the Parent is so low at a roam point that FT frames are lost during the roam.
Disable When a Repeater's Parent Link is broken due to Sync Loss or if the initial connection
Blackout
fails for any reason a Blackout time is set to a Parent candidate so that the Parent
selection algorithm will be forced to try another Parent even if its inferior. This works well
when there are always other decent Parent candidates available. In some applications
the physical setup is such that all other candidates in some locations are so weak, that
any connection to them will be unusable. When it is known that there might only be one
valid Parent candidate at times, this control when checked in the Repeater will allow the
Parent selection algorithm to ignore any Blackout time that's been set to a Parent and
allow an immediate reconnection attempt and prevent a lengthy connection outage. This
control is disabled when in Master mode.
None Select this box to negate all other parameters so that no roam parameters are advertised
to Child Repeater radios.
Next Parent Select this box to advertise the unit that a Child Repeater radio should roam to next. The
select box automatically populates with all the RLX2-IHx series units with the same SSID
that are on the same Ethernet network as a unit.
Each entry is represented by the Name of the RLX2-IHx series radio, so it is important
that you give each radio a unique name. If the desired next Parent radio has not been
detected because it is not currently powered up or attached to the network, it does not
appear in the list. In this case, you can manually enter its MAC Address into the
parameter. Once saved, this MAC Address appears in the select box until that unit is
detected on the Ethernet, at which time the radio's name replaces the MAC Address.
When an advertised N
Child Repeater radio roams to the Next Parent radio when the Next Parent radio's cost is
lower than its current Parent radio. When the advertised Next Parent radio is on a
different channel, the radio uses the R
Select this box to advertise the R
Roam
Threshold Roam Threshold overrides the Child Repeater radio's equivalent setting, only when the
Child Repeater radio is associated to this unit. If the Parent radio is not advertising a
Roam Threshold, the Child Repeater radio reverts to using its own value configured on
the P
This parameter is critical when a Next Parent is also being advertised and that Parent is
configured to be on a different channel than this unit. The Child Repeater uses this
threshold to determine when to switch to the Next Parent's channel and associate with it.
Page 86 of 250
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