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Setting Advanced Properties: Broadcom Wireless LAN Adapter User Guide

 

  802.11h+d

  Afterburner

  Association Roam Preference

  Band Preference

  Bluetooth Collaboration

  IBSS 54g(tm) Protection Mode

  IBSS 54g(tm) Mode

  Locally Administered MAC Address

  Location

  Minimum Power Consumption

  Mixed Cell Support

  BSS PLCP Header

  Power Output

  Power Save Mode

  Rate

  Rate (802.11a)

  Rate (802.11b/g)

  Disable Bands

  Fragmentation Threshold

  Roaming Decision

  RTS Threshold

  SSID Autopromote

  WMM

  WZC IBSS Channel Number

  WZC Managed Ethernet

  XPress (TM) Technology


On the Advanced tab of Broadcom 802.11 Wireless LAN Adapter Properties you can view and change the values of the available properties.

To access the Advanced tab

  1. Right-click the Wireless Network Connection icon in the notification area, and then click Open Network Connections.
  2. Right-click Wireless Network Connection, and then click Properties.
  3. On the General tab, click Configure.
  4. Click the Advanced tab.

To view the value of a property, click the name of the property in the Property list. The property value is displayed in the Value box. To change the value, click an option in the Value list or type a new value, as appropriate (selection options are different for different properties).

The available properties and their respective settings are described below.

NOTE: Some of the properties may not be available on your model of the Broadcom 802.11 Wireless LAN Adapter.

802.11h+d

The 802.11h+d property configures the advanced radio control of the WLAN card by an associated access point. The controls are enabled when the 802.11h+d property is set to Loose 11h, Loose 11h+d, or Strict 11h. When the setting is Strict 11h, the Broadcom 802.11 associates only to access points supporting IEEE 802.11h protocols when operating in regions with special restrictions on radio operation. When the setting is Loose 11h, the WLAN card does not restrict associations based on the access point IEEE 802.11h support. When the setting is Loose 11h+d, the Broadcom 802.11 does not restrict associations based on the access point IEEE 802.11h or IEEE 802.11d support.

Disabled (default)

Loose 11h

Loose 11h+d

Strict 11h

Afterburner

Afterburner is a Broadcom proprietary high-performance implementation of a faster throughput added to wireless products that conform to IEEE 802.11g.

Disabled (default). Disables Afterburner.

Enabled. Enables Afterburner

Association Roam Preference

This property is available only on Broadcom 802.11 Wireless LAN Adapter models that have dual-band capability. When enabled, this property works in conjunction with the Band Preference property and is triggered only when Band Preference is not set to None. Enabling Association Roam Preference maintains your band preference through roam transitions between access points using the same SSID.

Disabled (default)

Enabled

Band Preference

This property is available only on Broadcom 802.11 Wireless LAN Adapter models that have dual-band capability. Band Preference allows users to specify the IEEE 802.11 band preference while roaming. This allows the Broadcom 802.11 Wireless LAN Adapter to associate with another AP based on band preference even if the signal from the currently associated AP is strong enough to sustain the association.

None (default) Roams without regard to the frequency band of the available APs.

Prefer 802.11a (5 GHz)

Prefer 802.11g/b band (2.4 GHz)

Bluetooth Collaboration

Bluetooth Collaboration enables general purpose input/output transmit suppression protocol between the IEEE 802.11 media access control (MAC) and an external Bluetooth chip to minimize transmit interference. Bluetooth Collaboration is enabled by default.

Enable (default)

Disable

IBSS 54g(tm) Protection Mode

A mechanism of prefixing each OFDM data frame with a request to send/clear to send (RTS/CTS) complimentary code keying (CCK) frame sequence. The duration fields of the RTS and CTS frames should allow the IEEE 802.11b node to correctly set its network allocation vector (NAV) and avoid collisions with the subsequent OFDM frames. As required for Wi-Fi®, protection mechanisms are enabled automatically whenever an IEEE 802.11b STA joins the BSS. If no IEEE 802.11b STA joins, then no protection mechanism is used and full IEEE 802.11g performance is attained.

Auto

Disabled

IBSS 54g(tm) Mode

IBSS 54g Mode is used to set the connection type in an ad hoc network. The following options are available:

802.11b Only (default). Links only with IEEE 802.11b networks at the highest rate. Also, it excludes IEEE 802.11g networks.

54g - Auto

54g - LRS

54g - Performance

Locally Administered MAC Address

Locally Administered MAC Address is used to override the MAC address of the Broadcom 802.11 Wireless LAN Adapter. The Locally Administered MAC Address is a user-defined MAC address that is used in place of the MAC address originally assigned to the network adapter. Every adapter in the network must have its own unique MAC address. This locally administered address consists of a 12-digit hexadecimal number.

Value. Assigns a unique node address for the adapter.

Not Present (Default). Uses the factory-assigned node address on the adapter.

The appropriate assigned ranges and exceptions for the locally administered address include the following:

Location

Users who purchased their computer with a Broadcom 802.11 Wireless LAN Adapter in the United States or Japan have US or JP, respectively as the default location. For all other users, the Location property is not available. See Radio Approvals for additional information.

Minimum Power Consumption

When enabled, this property enables the wireless client to either turn off the radio or to not scan when the wireless client network is unassociated or when the computer is in the IDLE state.

Disabled

Enabled (default)

Mixed Cell Support

Disabled (Default)

Enabled

BSS PLCP Header

The BSS PLCP Header property is used to set the header type used for CCK rates. The type can be Long or Auto (short/long).

Auto (Short/Long) (default)

Long

Power Output

The power output property allows users to reduce the power output of the radio and therefore, the noise level, if excessive noise is a problem.

100% (Default)

25%

50%

75%

Power Save Mode

Power Save Mode is used to put the Broadcom 802.11 Wireless LAN Adapter enabled computer into the IEEE 802.11 Power Save mode. In Power Save mode, the radio is periodically powered down to conserve power. When the radio is in Power Save mode, packets are stored in the AP until the radio comes on. Power Save Fast allows full throughput with power savings.

Fast (default)

Enabled

Disabled

Rate

This property allows you to specify the rate (in Mbit/s) at which data is transmitted. The possible values are: 1, 2, 5.5, 6, 9, 11, 18, 24, 36 48, and 54 . The default is set to Use best Rate. This setting automatically adjusts the transmission rate to the optimal rate based on the capabilities of the other wireless clients and access points.

NOTE: The default value for this property is set for maximum performance. Therefore, it is not recommended for home users to change the value. Only network administrators or technicians with wireless LAN experience should attempt to make any changes.

Rate (802.11a)

This property allows you to specify the rate (in Mbit/s) at which data is transmitted for IEEE 802.11a operation. The possible values are: 6, 9, 12, 18, 24, 36, 48, and 54. The default is set to Use best Rate.

NOTE: The default value for this property is set for maximum performance. Therefore, it is not recommended for home users to change the value. Only network administrators or technicians with wireless LAN experience should attempt to make any changes.

Rate (802.11b/g)

This property allows you to specify the rate (in Mbit/s) at which data is transmitted for IEEE 802.11b/g operation. The possible values are: 1, 2, 5.5, 6, 9, 11, 18, 24, 36 48, and 54 . The default is set to Use best Rate.

NOTE: The default value for this property is set for maximum performance. Therefore, it is not recommended for home users to change the value. Only network administrators or technicians with wireless LAN experience should attempt to make any changes.

Disable Bands

This property is available only on Broadcom 802.11 Wireless LAN Adapter models that have dual-band capability.

None (default)

Disable 802.11g/b

Disable 802.11a

Fragmentation Threshold

The maximum size in bytes at which packets are fragmented and transmitted a piece at a time instead of all at once. Available values range from 256 to 2346. The default value is 2346.

Roaming Decision

The signal strength value that determines when the Broadcom 802.11 Wireless LAN Adapter starts scanning for other APs.

Default (Default). −70 dB

Optimize Bandwidth. −60 dB

Optimize Distance. −80 dB

RTS Threshold

If the number of frames in the data packet is at or above the RTS Threshold, a request to send/clear to send handshake is turned on before sending the data packet. The default value is 2347. The range is 0 to 2347.

SSID Autopromote

Wireless networks that you have configured using the Broadcom Wireless Utility are listed under Preferred networks on the Wireless Networks tab of the utility. If you have configured multiple wireless networks, each time you start your computer, it automatically attempts to connect to the network at the top of the preferred networks list. If that network is within range, the connection is made. If it is not within range, your computer attempts to connect to the next network on the list, and continues the process until it finds a network that is within range. You can move any preferred network up or down the list.

If the SSID Autopromote property is disabled, you can manually override the automatic network connection process and connect to the network of your choice, regardless of its position on the preferred networks list. If the SSID Autopromote property is enabled, you cannot manually override the automatic connection process.

Disabled (default). If SSID Autopromote is disabled, the Connect To option is available when you right-click the utility icon in the notification area in the lower-right corner of your screen.

Enabled. If SSID Autopromote is enabled, the Connect To option is not available.

WMM

Wi-Fi Multimedia (WMM™). The WMM property enables quality of service for audio, video, and voice applications over a wireless network by prioritizing streams of content and optimizing the way the network allocates bandwidth among competing applications.

Auto (default). With WMM set to Auto, when the wireless client connects to the AP, and the AP has Unscheduled Automatic Power Save Delivery (UAPSD) enabled, the wireless client is allowed to enter Power Save mode.

Enabled. The wireless client enters Power Save mode for WMM associations independent of whether the AP has UAPSD enabled or disabled.

Disabled. The wireless client does not have WMM association.

WZC IBSS Channel Number

The WZC IBSS Channel Number property selects the independent basic service set (IBSS) channel number on which to operate when WZC is managing your wireless networks. The default setting is 11.

WZC Managed Ethernet

If enabled, Wireless Zero Configuration Service (WZC), which is Windows wireless management software, will not be disabled, but will be configured to manage 802.1x connections for Ethernet devices in your system. This setting only applies if the Broadcom Wireless Utility is enabled to manage your Broadcom 802.11 Wireless LAN Adapter.

Disabled (default).

Enabled.

XPress (TM) Technology

Xpress™ Technology is a proprietary frame bursting technology that improves throughput by repackaging data so that more data can be sent in each frame. Xpress™ Technology is disabled by default.

Disabled (default). Disables Xpress™ Technology.

Enabled. Enables Xpress™ Technology.

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