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Security Features
Terminology
Line of Site
Aironet 340 Series Bridge xv
A clear line of sight must be maintained between wireless bridge antennas.
Any obstructions may impede the performance or prohibit the ability
of the wireless bridge to transmit and receive data. Directional
antennas should be placed at both ends at appropriate elevation with
maximum path clearance.
The Aironet 340 Series Bridge employs Spread Spectrum Technology,
previously developed for military “anti-jamming” and “low probability
of intercept” radio systems.
The Aironet 340 Series Bridge must be set to the same System Identifier
(SSID) as all other Aironet devices on the wireless infrastructure. Units
with a different SSID will not be able to directly communicate with each
other.
When configuring your system, and when reading this manual, keep in
mind the following terminology:
Infrastructure – The wireless infrastructure is the communications system
that combines Aironet bridges, mobile nodes and fixed nodes. Aironet
bridges within the infrastructure can be either root units, which are
physically wired to the LAN backbone, or can act as wireless repeaters.
Other RF enabled devices serve as fixed nodes or mobile nodes.
Root Unit – The root unit is an Aironet bridge that is located at the top,
or starting point, of a wireless infrastructure. The root bridge is usually
connected to main wired backbone LAN. Since the radio traffic from the
other bridges LANs will pass through this unit, the root unit is usually
connected to the LAN which originates or receives the most traffic
Repeater – A repeater is an Aironet bridge that establishes a connection
to the root bridge or another repeater bridge to make the wired LAN to
which it is connected part of the bridged LAN.
End Node – A radio node that is located at the end of the network tree.