Cisco Cisco 5508 Wireless Controller 기술 참조
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Cisco Aironet 1600/2600/3600 Series Access Point Deployment Guide
General Guidelines
Figure 59
Site Survey Sensitivity, RSSI/SNR Guidelines, and SNR
General Guidelines
Following are general guidelines for all access points.
•
Always try to mount the AP as close to the users as possible for best performance. Be aware of the
environment. For example, if hospitals have metal doors, coverage can change when the doors close.
Old buildings can have metal grid work hidden under plaster or asbestos. Avoid mounting the AP or
antennas near metal objects, since that may affect the coverage area.
environment. For example, if hospitals have metal doors, coverage can change when the doors close.
Old buildings can have metal grid work hidden under plaster or asbestos. Avoid mounting the AP or
antennas near metal objects, since that may affect the coverage area.
•
When using the 2.4 GHz frequency, the same one, six, and eleven channel scheme is used as in the
5 GHz channel scheme. (See
5 GHz channel scheme. (See
.) Avoid putting all APs on the same channel, and reuse
channels if possible. See other Cisco deployment guides for more on this topic.
Figure 60
Example of Channel Usage in 2.4 and 5 GHz (Two Channels used if 40 MHz)
•
Try to determine which clients will be used and check the coverage using those clients. For example,
a PDA or Wi-Fi phone might not have the same range as a notebook or tablet.
a PDA or Wi-Fi phone might not have the same range as a notebook or tablet.
•
Tip: Verify coverage using the worst performing clients that you intend to deploy.