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Performing Advanced Configuration
•
Auto Channel Select: The AP scans the area for other Access Points and selects a free or relatively unused
communication channel. This helps prevent interference problems and increases network performance. By default
this feature is enabled. See
Channels.
NOTE
You cannot disable Auto Channel Select for 802.11a products in Europe (see
(DFS)
for details).
•
Frequency Channel: When Auto Channel Select is enabled, this field is read-only and displays the Access Point's
current operating Channel. When Auto Channel Select is disabled, you can specify the Access Point's channel. If
you decide to manually set the unit's Channel, ensure that nearby devices do not use the same frequency.
Available Channels vary based on regulatory domain. See
Frequencies. Note that you cannot manually set the channel for 802.11a products in Europe (see
Frequency Selection (DFS)
•
Transmit Rate: Select a specific transmit rate for the AP. The values available depend on the Operational Mode.
Auto Fallback is the default setting; it allows the AP to select the best transmit rate based on the cell size. Use the
drop-down menu to select a specific transmit rate for the AP.
— For 802.11b only -- Auto Fallback, 1, 2, 5.5, 11 Mbits/sec
— For 802.11g only -- Auto Fallback, 6, 9, 12, 18, 24, 36, 48, 54 Mbits/sec
— For 802.11b/g and 802.11g-wifi -- Auto Fallback, 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54 Mbits/sec
— For 802.11a only -- Auto Fallback, 6, 9, 12, 18, 24, 36, 48, 54 Mbits/s. Auto Fallback is the default setting;
it allows the AP unit to select the best transmit rate based on the cell size.
•
DTIM Period: The Deferred Traffic Indicator Map (DTIM) is used with clients that have power management
enabled. DTIM should be left at 1, the default value, if any clients have power management enabled. This
parameter supports a range between 1 and 255.
•
RTS/CTS Medium Reservation: This parameter affects message flow control and should not be changed under
normal circumstances. Range is 0 to 2347. When set to a value between 0 and 2347, the Access Point uses the
RTS/CTS mechanism for packets that are the specified size or greater. When set to 2347 (the default setting),
RTS/CTS is disabled. See
•
Closed System: Check this box to allow only clients configured with the Access Point's specific Network Name to
associate with the Access Point. When enabled, a client configured with the Network Name "ANY" cannot connect
to the AP. This option is disabled by default.
Wireless Distribution System (WDS)
A Wireless Distribution System (WDS) creates a link between two 802.11a, 802.11b, or 802.11b/g APs over their radio
interfaces. This link relays traffic from one AP that does not have Ethernet connectivity to a second AP that has
Ethernet connectivity. WDS allows you to configure up to six (6) point-to-point links between Access Points.
In the
WDS Example
below, AP 1 and AP 2 communicate over a WDS link (represented by the blue line). This link
provides Client 1 with access to network resources even though AP 1 is not directly connected to the Ethernet
network. Packets destined for or sent by the client are relayed between the Access Points over the WDS link.
802.11a Channel Frequencies
for details).
RTS/CTS Medium Reservation
and
802.11g Channel Frequencies
Dynamic Frequency Selection
802.11a Channel Frequencies
for more information.
for a list of
and
802.11g Channel
Dynamic
53
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