Cisco Cisco WAP131 Wireless-N Dual Radio Access Point with PoE 관리 매뉴얼
Wireless
Radio
Cisco WAP131 and WAP351 Administration Guide
78
5
The fragmentation involves more overhead both because of the extra work
of dividing up and reassembling of frames that it requires, and because it
increases message traffic on the network. However, the fragmentation can
help improve network performance and reliability if properly configured.
of dividing up and reassembling of frames that it requires, and because it
increases message traffic on the network. However, the fragmentation can
help improve network performance and reliability if properly configured.
Sending smaller frames (by using lower fragmentation threshold) might help
with some interference problems; for example, with microwave ovens.
with some interference problems; for example, with microwave ovens.
By default, the fragmentation is off. We recommend not using fragmentation
unless you suspect the radio interference. The additional headers applied to
each fragment increase the overhead on the network and can greatly reduce
the throughput.
unless you suspect the radio interference. The additional headers applied to
each fragment increase the overhead on the network and can greatly reduce
the throughput.
•
RTS Threshold—The Request to Send (RTS) Threshold value. The valid
integer range must be from 0 to 2347. The default is 2347 octets.
integer range must be from 0 to 2347. The default is 2347 octets.
The RTS threshold indicates the number of octets in an MPDU, below which
an RTS/CTS handshake is not performed.
an RTS/CTS handshake is not performed.
Changing the RTS threshold can help control the traffic flow through the
WAP device, especially one with a lot of clients. If you specify a low
threshold value, the RTS packets are sent more frequently, which consumes
more bandwidth and reduces the throughput of the packet. However,
sending more RTS packets can help the network recover from interference
or collisions that might occur on a busy network, or on a network
experiencing electromagnetic interference.
WAP device, especially one with a lot of clients. If you specify a low
threshold value, the RTS packets are sent more frequently, which consumes
more bandwidth and reduces the throughput of the packet. However,
sending more RTS packets can help the network recover from interference
or collisions that might occur on a busy network, or on a network
experiencing electromagnetic interference.
•
Maximum Associated Clients—The maximum number of stations allowed
to access the WAP device at any one time. You can enter an integer between
0 and 200. The default is 200 stations.
to access the WAP device at any one time. You can enter an integer between
0 and 200. The default is 200 stations.
•
Transmit Power—A percentage value for the transmit power level for the
WAP device.
WAP device.
The default value of 100 percent can be more cost-efficient than a lower
percentage because it gives the WAP device a maximum broadcast range
and reduces the number of access points needed.
percentage because it gives the WAP device a maximum broadcast range
and reduces the number of access points needed.
To increase the capacity of the network, place the WAP devices closer
together and reduce the value of the transmit power. This setting helps
reduce overlap and interference among the access points. A lower transmit
power setting can also keep your network more secure because the weaker
wireless signals are less likely to propagate outside of the physical location
of your network.
together and reduce the value of the transmit power. This setting helps
reduce overlap and interference among the access points. A lower transmit
power setting can also keep your network more secure because the weaker
wireless signals are less likely to propagate outside of the physical location
of your network.