Chapter 7 Wireless LAN

 

 

 

 

 

Table 29 Network > Wireless LAN > Advanced

 

LABEL

DESCRIPTION

 

 

Fragmentation

The threshold (number of bytes) for the fragmentation boundary for directed

 

 

Threshold

messages. It is the maximum data fragment size that can be sent. Enter an even

 

 

 

number between 256 and 2346.

 

 

 

This field is not available when Super Mode is selected.

 

 

 

 

 

 

Beacon

When a wirelessly networked device sends a beacon, it includes with it a beacon

 

 

Interval

interval. This specifies the time period before the device sends the beacon again.

 

 

 

The interval tells receiving devices on the network how long they can wait in low-

 

 

 

power mode before waking up to handle the beacon. This value can be set from

 

 

 

20ms to 1000ms. A high value helps save current consumption of the access point.

 

 

 

 

 

 

DTIM

Delivery Traffic Indication Message (DTIM) is the time period after which broadcast

 

 

 

and multicast packets are transmitted to mobile clients in the Active Power

 

 

 

Management mode. A high DTIM value can cause clients to lose connectivity with

 

 

 

the network. This value can be set from 1 to 100.

 

 

 

 

 

 

Preamble

A preamble affects the timing in your wireless network. There are two preamble

 

 

 

modes: long and short. If a device uses a different preamble mode than the NBG-

 

 

 

417N does, it cannot communicate with the NBG-417N.

 

 

 

 

 

 

CTS Protection

When set to None, the NBG-417N protects wireless communication against

 

 

 

interference.

 

 

 

When set to Always, the NBG-417N improves performance within mixed wireless

 

 

 

modes.

 

 

 

Select Auto to let the NBG-417N determine whether to turn this feature on or off in

 

 

 

the current environment.

 

 

 

 

 

 

Tx Power

This field controls the transmission power of the NBG-417N. When using the NBG-

 

 

 

417N with a notebook computer, select a lower transmission power level when you

 

 

 

are close to the AP in order to conserve battery power.

 

 

 

 

 

 

Enable Intra-

A Basic Service Set (BSS) exists when all communications between wireless clients

 

 

BSS Traffic

or between a wireless client and a wired network client go through one access point

 

 

 

(AP).

 

 

 

Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is

 

 

 

enabled, wireless client A and B can access the wired network and communicate

 

 

 

with each other. When Intra-BSS is disabled, wireless client A and B can still access

 

 

 

the wired network but cannot communicate with each other.

 

 

 

 

 

 

Apply

Click Apply to save your changes back to the NBG-417N.

 

 

 

 

 

 

Reset

Click Reset to reload the previous configuration for this screen.

 

 

 

 

 

7.7 Quality of Service (QoS) Screen

The QoS screen allows you to automatically give a service (such as e-mail, VoIP or FTP) a priority level.

 

79

NBG-417N User’s Guide