ZyXEL Communications Corporation WAC6503D-S Manual De Usuario

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Chapter 8 AP Profile
NWA5000 / WAC6500 Series User’s Guide
88
2.4 GHz Channel 
Selection Method
Select how you want to specify the channels the NWA/WAC switches between for 2.4 
GHz operation. This field appears only when you choose 802.11b/g/n mode.
Select auto to have the NWA/WAC display a 2.4 GHz Channel Deployment field you 
can use to limit channel switching to 3 or 4 channels.
Select manual to select the individual channels the NWA/WAC switches between. 
Select channels from the Available channels list and use the right arrow button to 
move them to the Channels selected list. 
2.4 GHz Channel 
Deployment
This is available when the 2.4 GHz Channel Selection Method is set to auto.
Select Three-Channel Deployment to limit channel switching to channels 1,6, and 
11, the three channels that are sufficiently attenuated to have almost no impact on one 
another. In other words, this allows you to minimize channel interference by limiting 
channel-hopping to these three “safe” channels.
Select Four-Channel Deployment to limit channel switching to four channels. 
Depending on the country domain, if the only allowable channels are 1-11 then the 
NWA/WAC uses channels 1, 4, 7, 11 in this configuration; otherwise, the NWA/WAC 
uses channels 1, 5, 9, 13 in this configuration. Four channel deployment expands your 
pool of possible channels while keeping the channel interference to a minimum.
Enable 5 GHz 
DFS Aware
Select this if your APs are operating in an area known to have RADAR devices. This 
allows the devide to downgrade its frequency to below 5 GHz in the event RADAR signal 
is detected, thus preventing it from interfering with that signal.
Enabling this forces the AP to select a non-DFS channel.
5 GHz Channel 
Selection Method
Select how you want to specify the channels the NWA/WAC switches between for 5 GHz 
operation.
Select Auto to have the NWA/WAC automatically select the best channel.
Advanced Settings
Guard Interval
Set the guard interval for this radio profile to either short or long. This option isn’t 
applicable if you choose 20 MHz channel width.
The guard interval is the gap introduced between data transmission from users in order 
to reduce interference. Reducing the interval increases data transfer rates but also 
increases interference. Increasing the interval reduces data transfer rates but also 
reduces interference.
Enable A-MPDU 
Aggregation
Select this to enable A-MPDU aggregation.
Message Protocol Data Unit (MPDU) aggregation collects Ethernet frames along with 
their 802.11n headers and wraps them in a 802.11n MAC header. This method is useful 
for increasing bandwidth throughput in environments that are prone to high error 
rates.
Enable A-MSDU 
Aggregation
Select this to enable A-MSDU aggregation.
Mac Service Data Unit (MSDU) aggregation collects Ethernet frames without any of 
their 802.11n headers and wraps the header-less payload in a single 802.11n MAC 
header. This method is useful for increasing bandwidth throughput. It is also more 
efficient than A-MPDU except in environments that are prone to high error rates.
RTS/CTS 
Threshold
Use RTS/CTS to reduce data collisions on the wireless network if you have wireless 
clients that are associated with the same AP but out of range of one another. When 
enabled, a wireless client sends an RTS (Request To Send) and then waits for a CTS 
(Clear To Send) before it transmits. This stops wireless clients from transmitting 
packets at the same time (and causing data collisions). 
A wireless client sends an RTS for all packets larger than the number (of bytes) that 
you enter here. Set the RTS/CTS equal to or higher than the fragmentation threshold to 
turn RTS/CTS off.
Table 43   
Configuration > Object > AP Profile > Add/Edit Profile (continued)
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