Ubiquiti Networks airRouter HP User's Guide download pdf (Page 15)

Chapter 10: Ubiquiti Logo TabAirRouter

HP User Guide

Ubiquiti Networks, Inc.

AirMax Settings include:

! Enable AirMax This feature is available when the

device is in Access Point or Access Point WDS mode under

the Wireless tab > Wireless Mode. If enabled, the device

will operate in AirMax mode, including all its benefits.

When AirMax is activated, the device only accepts

connections from AirMax stations.

Note: When the device is in Station or Station

WDS mode under the Wireless tab > Wireless

Mode, AirMax will be selected automatically

when connecting to an AirMax Access Point.

! No ACK Mode for PtP Acknowledgment (ACK) timeout

settings are limited by device hardware specifications.

No ACK Mode for PtP should be used in a Point to Point

(PtP) situation where actual link distance exceeds

hardware ACK timeout limits (17km in 40MHz mode or

51km in 20MHz mode). In all other scenarios, static or

automatically-adjusted values should be used (See the

Advanced tab > Advanced Wireless Settings > ACK Timeout

to adjust ACK timeout settings).

Important: While No ACK Mode for PtP is

enabled, only one station can be connected.

To connect more than one station, select

Auto Adjust mode under the Advanced tab >

Advanced Wireless Settings > ACK Timeout.

! AirMax Priority This feature (available when the device

is in Station or Station WDS mode under the Wireless tab

> Wireless Mode), defines the amount of time slots (or

Airtime) assigned to each client.

! By default the Access Point will give all active clients

the same amount of time. However, if the clients are

configured with different priorities, the Access Point will

give clients more or less time, depending on the priority.

AirMax Priority options include:

! None: 1 time slot (Default setting for clients; 1:1 ratio)

! Low: 2 time slots (2:1 ratio)

! Medium: 3 time slots (3:1 ratio)

! High: 4 time slots (4:1 ratio)

Clients with a higher priority have access to more of

the Access Point’s airtime, providing higher possible

throughput and lower latency when sharing with other

active clients. For example, if there are 3 clients, 1 set to

None, 1 set to Medium, and 1 set to High, the None client

will get 1 time slot, the Medium client will get 3 time

slots, and the High client will get 4 time slots.

Note: AirMax Priority only functions when

multiple clients have it enabled.

AirSelect

AirSelect is a technology that avoids interference and

increases throughput by dynamically changing the

wireless channel by periodically hopping to the least-

used channel in the Frequency List (user defined)

within a designated time interval (user-defined in ms, or

milliseconds). Furthermore, AirSelect tracks interference

levels on each channel used, hopping to those with the

least amount of interference more frequently.

Note: AirMax Priority only functions when

multiple clients have it enabled.

AirSelect options include:

! Enable AirSelect Selecting the check box enables

AirSelect. Clearing the check box disables AirSelect.

When AirSelect is enabled, the Access Point and all

associated clients will quickly hop between frequencies

attempting to avoid interference.

! Frequency List Available when AirSelect is enabled.

Clicking Edit allows the selection of frequencies that the

Access Point will use for AirSelect. Available frequencies

will vary based on the Ubiquiti M Series product being

configured.

! Hop Interval Available when AirSelect is enabled. The

duration (in milliseconds) that the Access Point will

stay on one frequency before moving to the next. The

default value is 3000ms.

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Ubiquiti Networks airRouter HP User's Guide Page 15

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