Chapter 8 Wireless Configuration
NWA-3500/NWA-3550 User’s Guide
134
The roaming feature on the access points allows the access points to relay
information about the wireless stations to each other. When a wireless station
moves from a coverage area to another, it scans and uses the channel of a new
access point, which then informs the other access points on the LAN about the
change. An example is shown in
With roaming, a wireless LAN mobile user enjoys a continuous connection to the
wired network through an access point while moving around the wireless LAN.
Enable roaming to exchange the latest bridge information of all wireless stations
between APs when a wireless station moves between coverage areas. Wireless
stations can still associate with other APs even if you disable roaming. Enabling
roaming ensures correct traffic forwarding (bridge tables are updated) and
maximum AP efficiency. The AP deletes records of wireless stations that associate
with other APs (Non-ZyXEL APs may not be able to perform this). 802.1x
authentication information is not exchanged (at the time of writing).
Figure 83
Roaming Example
The steps below describe the roaming process.
1
Wireless station
Y
moves from the coverage area of access point
AP 1
to that of
access point
AP 2
.
2
Wireless station
Y
scans and detects the signal of access point
AP 2
.
3
Wireless station
Y
sends an association request to access point
AP 2
.
4
Access point
AP 2
acknowledges the presence of wireless station
Y
and relays this
information to access point
AP 1
through the wired LAN.
Содержание 802.11a/g Wireless CardBus Card ZyXEL AG-120
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Страница 8: ...Safety Warnings NWA 3500 NWA 3550 User s Guide 8...
Страница 10: ...Contents Overview NWA 3500 NWA 3550 User s Guide 10...
Страница 20: ...Table of Contents NWA 3500 NWA 3550 User s Guide 20...
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Страница 34: ...Chapter 1 Introducing the NWA NWA 3500 NWA 3550 User s Guide 34...
Страница 52: ...Chapter 4 Management Mode NWA 3500 NWA 3550 User s Guide 52...
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Страница 146: ...Chapter 9 SSID Screen NWA 3500 NWA 3550 User s Guide 146...
Страница 160: ...Chapter 10 Wireless Security Screen NWA 3500 NWA 3550 User s Guide 160...
Страница 178: ...Chapter 14 IP Screen NWA 3500 NWA 3550 User s Guide 178...
Страница 186: ...Chapter 15 Rogue AP Detection NWA 3500 NWA 3550 User s Guide 186...
Страница 198: ...Chapter 16 Remote Management Screens NWA 3500 NWA 3550 User s Guide 198...
Страница 260: ...Chapter 21 Load Balancing NWA 3160 Series User s Guide 260...
Страница 264: ...Chapter 22 Dynamic Channel Selection NWA 3160 Series User s Guide 264...
Страница 276: ...Chapter 23 Maintenance NWA 3500 NWA 3550 User s Guide 276...
Страница 277: ...277 PART III Troubleshooting and Specifications Troubleshooting 279 Product Specifications 285...
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Страница 284: ...Chapter 24 Troubleshooting NWA 3500 NWA 3550 User s Guide 284...
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Страница 368: ...Appendix D Importing Certificates NWA 3500 NWA 3550 User s Guide 368...
Страница 386: ...Appendix F Text File Based Auto Configuration NWA 3500 NWA 3550 User s Guide 386...
Страница 396: ...Index NWA 3500 NWA 3550 User s Guide 396...