Fortress Technologies ecure Wireless Access Bridge User Manual

Fortress Bridge: Configuration

28

Beacon Interval
The Bridge’s radios transmit beacons at regular intervals to 
announce their presence on the network. You can configure 
the number of milliseconds between beacons in whole 
numbers between 

 and 

. You cannot disable the 

beacon.

The default beacon interval is 

 milliseconds.

Multicasting
Wireless is an inherently broadcast medium. A multicast 
packet, like any other, is broadcast (by the root Bridge) to all 
nodes (non-root Bridges) on the wireless network. Each non-
root Bridge then examines the packet and:

‹

If the Bridge is an intended receiver, it accepts the packet.

‹

If the Bridge is serving as a repeater for an outlying Bridge 
that is an intended receiver, it passes the packet along this 
route.

‹

If the Bridge is neither an intended receiver nor the 
repeater for an intended receiver, it drops the packet.

Non-root Bridges on which 

 is disabled will drop all 

multicast packets.

The 

 function applies exclusively to non-root Bridges, 

and so can only be 

 on Bridges with a 

 

setting of 

 and a 

 setting of 

.

The 

 field is grayed out for Bridges with a 

 

of 

 or with a 

 of 

.

The 

 field is also grayed out for Bridge’s with 

 

 on the 

 screen. Because STP requires 

multicasting capability, 

 is automatically 

 (and 

the field that configures the setting is grayed out) when 

 is 

detail: