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Cisco Small Business WAP551 and WAP561 Wireless-N Access Point 63
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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.
To increase the capacity of the network, place WAP devices closer together
and reduce the value of the transmit power. This helps reduce overlap and
interference among access points. A lower transmit power setting can also
keep your network more secure because weaker wireless signals are less
likely to propagate outside of the physical location of your network.
Some channel ranges and country code combinations have relatively low
maximum transmit power. When attempting to set the transmit power to the
lower ranges (for example, 25% or 12%), the expected drop in power may
not occur, because certain power amplifiers have minimum transmit power
requirements.
• Fixed Multicast Rate—The transmission rate in Mbps for broadcast and
multicast packets. This setting can be useful in an environment where
wireless multicast video streaming occurs, provided the wireless clients are
capable of handling the configured rate.
When Auto is selected, the WAP device chooses the best rate for the
associated clients. The range of valid values is determined by the configured
radio mode.
• Legacy Rate Sets—Rates are expressed in megabits per second.
Supported Rate Sets indicate rates that the WAP device supports. You can
check multiple rates (check a box to select or deselect a rate). The WAP
device automatically chooses the most efficient rate based on factors such
as error rates and the distance of client stations from the WAP device.
Basic Rate Sets indicate rates that the WAP device advertises to the network
for the purposes of setting up communication with other access points and
client stations on the network. It is generally more efficient to have a WAP
device broadcast a subset of its supported rate sets.
• MCS (Data Rate) Settings—The Modulation and Coding Scheme (MCS)
index values that the WAP device advertises. MCS can enhance throughput
for 802.11n wireless clients.
Check the box below the MCS index number to enable it or uncheck it to
disable the index. You cannot disable all indexes at the same time.