Manual

8. Application Example2: Bridge Network
AirLive WHA-5500CPE-NT User’s Manual
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11. For multi-point connection, use bandwidth control to manage the variable
distance problem
Using ACKtimeout for point-to-point connection is no problem. However, for
point to multi-point connection, it becomes a problem at the center point. In the
diagram below, the WHA-5500CPE-NT at point A is the center hub. While
wireless clients at B, C,and D can set correct ACKtimeout values to point A, the
center AP can set only one Acktimeout value.
To illustrate this problem; when you set the ACKtimeout at Point A to 2km distance.
The likely result will be Point B will get about 90% of the bandwidth, Point C gets 10%,
and Point D gets nothing at all.
To solve this problem, please use total bandwidth control at point B, C, D to limit the
bandwidth to about 40% of total bandwidth each maximum. Then set the AP’s(Point A)
ACKtimeout value to 3km distance (the furthest point). All 3 points should then get
acceptable share of the bandwidth.
12. Use XR mode when you can’t connect with the extra sensitivity
Atheros eXtended Range mode will improve the AP’s receiver sensitivity to as high as
-105dB. However, when this mode is used, the performance may be reduced greatly.
8.2 WDS Bridge vs. Bridge Infrastructure
When you want to build a bridge connection, there are 2 choices with WHA-5500CPE-NT:
 WDS Bridge (Pure MAC): WDS Bridge mode can make Point-to-Point and
Multi-Point connections. It also delivers faster performance than infrastructure
networks. In a WDS network, each node can have up to 4 connections but the total
number of devices should not exceed 8. Currently, the WDS Bridge mode can only