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The PacketWave System uses IP for the backhaul channel and the wireless channels.
Overall, the system has the following network architecture, as shown in
Figure2-5
.
• The Base Station Unit’s backhaul channel is part of a subnet which includes:
-
A gateway to the outside world (Internet or private network).
-
Access to a DHCP server (either the DHCP server or a DHCP relay agent
must be on the same subnet as the BSU’s backhaul interface).
-
Access to a TFTP server identified by the DHCP server.
• Each wireless interface is the gateway for a subnet comprising itself and the
subscriber Indoor Units with which it communicates, and perhaps some or all
of the hosts at the subscriber sites.
NOTE: A wireless interface can be configured for multiple subnets, if desired. Also,
two or more wireless interfaces can be “clustered” in the same subnet. These options
are discussed in detail later in this section.
• Subnets may be implemented at subscriber sites.
Figure2-6
shows various
options.
