Chapter 1 Introducing the NWA
NWA1100-N User’s Guide
14
Be careful to avoid bridge loops when you enable bridging in the NWA. Bridge loops cause
broadcast traffic to circle the network endlessly, resulting in possible throughput degradation and
disruption of communications. The following examples show two network topologies that can lead
to this problem:
• If two or more NWAs (in bridge mode) are connected to the same hub.
Figure 5
Bridge Loop: Two Bridges Connected to Hub
• If your NWA (in bridge mode) is connected to a wired LAN while communicating with another
wireless bridge that is also connected to the same wired LAN.
Figure 6
Bridge Loop: Bridge Connected to Wired LAN
To prevent bridge loops, ensure that your NWA is not set to bridge mode while connected to both
wired and wireless segments of the same LAN.
1.2.3 AP + Bridge
In
AP+Bridge
mode, the NWA supports both AP and bridge connection at the same time.
In the figure below,
A
and
B
use
X
as an AP to access the wired network, while
X
and
Y
communicate in bridge mode.
Using
AP + Bridge
mode, your NWA can extend the range of the WLAN. In the figure below,
A
and
B
act as AP + Bridge devices that forward traffic between associated wireless workstations and the
wired LAN.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
