User guide

3.8 Wireless Ubee Interactive
46 DDW3612 Subscriber User Guide • July, 2010
Label Description
54g™ Network Mode This field can only be set if 802.11-n Mode to set to Off in the
Radio screen as discussed on page 39. Select which network
mode in which to run DDW3612 Wireless Cable Modem
Gateway. The options are listed below:
54g auto, for self adaptive connection
54g performance, highest speed
54g LRS, for limited speed
802.11b, for connections to 11b clients only.
Basic Rate Set Select the Basic Rate Set which is the rate that all wireless
clients must support in order to connect to the DDW3612
Wireless Cable Modem Gateway. The options are All and
Default.
54g™ Protection In Auto mode, the DDW3611 will use RTS/CTS to improve
802.1 1g performance in mixed 802.11 b/g networks. Turn
protection Off to maximize 802.11g throughput under most
conditions.
XPress™ Technology XPress™ is a standards-based frame-bursting approach to
improve 802.11g wireless LAN performance developed by
Broadcom. Select to Enable or Disable this feature.
Additional Information:
When Xpress is turned on, aggregate throughput can improve
by up to 27% in 802.11g-only networks, and up to 75% in mixed
networks comprised of 802.11g and 802.11b standard
equipment.
Rate Select Auto or select a specific data rate to limit the connection
rates of wireless clients.
Beacon Interval Specify the Beacon Interval from 100 to 6553 5ms. This value
indicates the frequency interval of the beacon. A beacon is a
packet broadcast by the DDW3611 to keep the network
synchronized. A beacon includes information regarding the
wireless networks service area, the access point address, the
broadcast destination addresses, a time stamp, delivery traffic
indicator maps, and the Traffic Indicator Message (TIM).
DTIM Interval Specify the DTIM interval from 3 to 255ms. This value indicates
how often the DDW3611 sends out a Delivery Traffic Indication
Message (DTIM). Lower settings result in more efficient
networking, while preventing your wireless clients from dropping
into power-saving sleep mode. Higher settings allow your
wireless clients to enter sleep mode, thus saving power, but
interferes with wireless transmissions.
Fragmentation
Threshold
Specify the fragmentation threshold packet size between 256-
2346 bytes. Fragmentation takes place when a packet’s size
exceeds the fragmentation threshold.
RTS Threshold Specify the RTS threshold from 0 to 2347ms. This setting
determines how large a packet can be before the DDW3611
coordinates transmission and reception to ensure efficient
communication. This value should remain at its default setting of
2347 bytes. If you encounter inconsistent data flow, minor
modification to this setting is recommended.