Quidway WB2011, Руководство пользователя

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Radio Interface
5-27
5
the wireless bridge will save all broadcast/multicast frames for the Basic Service Set
(BSS) and forward them after every second beacon. Using smaller DTIM intervals
delivers broadcast/multicast frames in a more timely manner, causing stations in
Power Save mode to wake up more often and drain power faster. Using higher DTIM
values reduces the power used by stations in Power Save mode, but delays the
transmission of broadcast/multicast frames.
(Range: 1-255 beacons; Default: 2 beacons)
RTS Threshold – Sets the packet size threshold at which a Request to Send (RTS)
signal must be sent to a receiving station prior to the sending station starting
communications. The wireless bridge sends RTS frames to a receiving station to
negotiate the sending of a data frame. After receiving an RTS frame, the station
sends a CTS (clear to send) frame to notify the sending station that it can start
sending data.
If the RTS threshold is set to 0, the wireless bridge never sends RTS signals. If set
to 2347, the wireless bridge always sends RTS signals. If set to any other value, and
the packet size equals or exceeds the RTS threshold, the RTS/CTS (Request to
Send / Clear to Send) mechanism will be enabled.
The wireless bridges contending for the medium may not be aware of each other.
The RTS/CTS mechanism can solve this “Hidden Node Problem.” (Range: 0-2347
bytes: Default: 2347 bytes)
CLI Commands for the 802.11a Wireless Interface – From the global configuration
mode, enter the
interface wireless a
command to access the 802.11a radio
interface. If required, configure a name for the interface using the
description
command. Use the
turbo
command to enable this feature before setting the radio
channel with the channel command. Set any other parameters as required. To view
the current 802.11a radio settings, use the
show interface wireless a
command.
Outdoor Bridge(config)#interface wireless a 6-43
Enter Wireless configuration commands, one per line.
Outdoor Bridge(if-wireless a)#description RD-AP#3
6-48
Outdoor Bridge(if-wireless a)#turbo 6-50
Outdoor Bridge(if-wireless a)#channel 42 6-49
Outdoor Bridge(if-wireless a)#transmit-power full 6-56
Outdoor Bridge(if-wireless a)#speed 9 6-49
Outdoor Bridge(if-wireless a)#beacon-interval 150 6-50
Outdoor Bridge(if-wireless a)#dtim-period 5 6-51
Outdoor Bridge(if-wireless a)#fragmentation-length 512 6-52
Outdoor Bridge(if-wireless a)#rts-threshold 256 6-52
Outdoor Bridge(if-wireless a)#