Cisco Systems WAP121, WAP321

Wireless

Radio

Cisco Small Business WAP121 and WAP321 Wireless-N Access Point with PoE 67

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 Se ts indicate rates that t he WAP device ad vertises to the netw ork

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.

The WAP device supports MCS indexes 0 to 15. MSC index 15 allows for a

maximum transmission rate of 300 Mbps. If no MCS index is selected, the

radio operates at MCS index 0, which allows for a maximum transmission

rate of 15 Mbps.

The MCS settings can be configured only if the radio mode includes 802.11n

support.

•Broadcast/Multicast Rate Limiting—Multicast and broadcast rate limiting

can improve overall network performance by limiting the number of packets

transmitted across the network.