Wave NCBSLXE2 Installation And Operation User Manual page 41

SPEEDLAN Installation and Operation User Guide
The performance of this approach is greatly improved if the SPEEDLAN base station is connected to
the heaviest network or network server.
TIP
This greatly improves the performance of a SPEEDLAN base station wireless network cell. As the
number of SPEEDLAN CPE brouters increase, the importance of a polling base station increases and
efficiency is proportionately improved.
Configuring SPEEDLAN
Campus Cell PRC Mode (No Base Station/Brouter)
•
This method of transportation is used only for point-to-point links. If any of the brouters are
unable to see each other, a base station must be used to repeat traffic from one brouter to
next brouter in line. This point-to-point mode utilizes Campus Cell PRC packet bundling,
which reduces the amount of overhead caused by sending smaller individual packets across
the wireless network. This greatly improves the performance of the connection.
SectorPRC Mode (This is a Non-Polling Base Station/Brouter)
•
This setting should be used if this is the only base station in the wireless network cell.
SPEEDLAN has a special mode where one wireless brouter can be configured as a base
station and each additional wireless node is setup as a CPE brouter. In this configuration the
only requirement is that each SPEEDLAN be able to communicate directly with the
SPEEDLAN base station. The SPEEDLAN base station is responsible for repeating packets
that need to travel between the SPEEDLAN CPE. The Non-Polling Base does not allocate
dynamically bandwidth to each remote brouter.
SectorPRC Mode (This is a Polling Base Station/Brouter)
•
This is the recommended mode of operation for a wireless base station. When the number
of CPE exceed 3 or 4, the non-polling base station may not be able to keep up with the
wireless traffic that needs to be forwarded. The polling base station alleviates this problem
by continuously communicating with every SPEEDLAN CPE in its cell. It is also responsible
for dynamically assigning how much bandwidth is allocated to each remote site based on
the network traffic load.
SectorPRC (This is a Remote Station/Brouter)
•
This is the configuration required for remote brouters that will be installed as CPE into a
multipoint wireless network. In this mode, a SPEEDLAN CPE will only communicate with a
base station. This mode cannot be used for point-to-point links.
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