Cisco Cisco Aironet 340 Ethernet Bridges Guia Do Utilizador

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Configuring the Radio Network   4 - 19
Roaming Notification Mode (Roaming)
When a node roams from one parent to another the new parent bridge 
sends packets to the wired network to inform any other bridge, switches 
and the old parent of the change in location.
If this option is set to directed and if the client node knows its old par-
ent’s address, this packet is sent as a directed packet to the old parent. In 
all cases we have encountered this should update the other network 
devices correctly. If you are having any problems you may wish to set 
the option to broadcast to cause the packet to be sent as a broadcast and 
be guaranteed to be sent everywhere in the network.
Setting the Loading Balance (Balance)
On a root bridge you may use the balance option to control how often 
the repeater bridge will execute the load balancing algorithm (i80211 
Extend must be enabled). The repeater bridges will search for better par-
ents based on the data traffic load and number of association even if they 
are having no trouble with their current parent. The options may be set 
to Off, Slow (every 30 seconds), or Fast (every 4 seconds).
Setting Diversity (Diversity)
This parameter tells the unit whether you have two antennas installed. 
Set the parameter to “Off” if one antenna is installed. The single antenna 
must be installed on the right connector when facing the back of the unit 
with the LED display facing up.
Setting the Power Level (Power)
This parameter may be used to reduce the power level of the radio trans-
mitter down from the maximum allowed by the regulatory commission. 
Depending on where you are located, you may be allowed to set the 
power to 50 milliwatts, 100 milliwatts or to full power.
Setting Fragment Size (Fragment)
This parameter determines the largest packet size that may be transmit-
ted. Packets that are larger than this size will be broken into pieces that 
are transmitted separately and rebuilt on the receiving side.