Chapter 6 Wireless LAN

Table 31 Network > Wireless LAN > Advanced (continued)

LABEL

DESCRIPTION

Extension Channel

If you select 40 MHz or Auto 20/40MHz as your Channel Bandwidth in the Wireless

 

LAN > General screen, the extension channel enables the NBG-419N to get higher data

 

throughput. This also lowers radio interference and traffic.

 

 

Aggregation

Message Protocol Data Unit (MPDU) aggregation collects Ethernet frames along with their

 

802.11n headers and wraps them in a 802.11n MAC header. This method is useful for

 

increasing bandwidth throughput in environments that are prone to high error rates.

 

Mac Service Data Unit (MSDU) aggregation collects Ethernet frames without any of their

 

802.11n headers and wraps the header-less payload in a single 802.11n MAC header.

 

This method is useful for increasing bandwidth throughput. It is also more efficient than

 

A-MPDU except in environments that are prone to high error rates.

 

 

Short GI

Select Enable to use Short GI (Guard Interval). The guard interval is the gap introduced

 

between data transmission from users in order to reduce interference. Reducing the GI

 

increases data transfer rates but also increases interference. Increasing the GI reduces

 

data transfer rates but also reduces interference.

 

 

Enable Intra-BSS

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

Traffic

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.

 

 

WLAN STA setting

This field is available only when the NBG-418N is in universal repeater mode.

overwrites WLAN

Select Enabled to have the NBG-418N copy the SSID and wireless security settings of

AP setting

the associated AP, and use them for wireless connections between the NBG-418N and its

 

 

wireless clients.

 

Otherwise, select Disabled to configure different wireless and security settings for

 

wireless connections between the NBG-418N and its wireless clients.

 

 

Apply

Click Apply to save your changes to the NBG-418N.

 

 

Reset

Click Reset to reload the previous configuration for this screen.

 

 

6.7 Quality of Service (QoS) Screen

Use the QoS screen to enable Wifi MultiMedia Quality of Service (WMMQoS). This allows the NBG- 418N to automatically set priority levels to services, such as e-mail, VoIP, chat, and so on.

Click Network > Wireless LAN > QoS. The following screen appears.

Figure 56 Network > Wireless LAN > QoS

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NBG-418N User’s Guide