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Ubee Interactive
Using the Advanced Option
Ubee DVW326 Advanced Wireless Voice Gateway Subscriber User Guide
•
March 2014
77
Label
Description
54g™ Mode
Selects the network mode in which to run the DVW326. The
options are:
54g auto – self adaptive connection
54g performance – highest speed
54g LRS – limited speed
802.11b – connections to 11b clients only.
This field can be set only if 802.11-n Mode is set to
Off
in the
Radio screen as discussed on
Using the Wireless Radio Option
on page 68
.
XPress™ Technology
Enables or disables the XPress feature. XPress™ is a
standards-based frame-bursting approach to improve 802.11g
wireless LAN performance developed by Broadcom. When
Xpress enabled, aggregate throughput can improve up to 27%
in 802.11g-only networks, and up to 75% in mixed networks
comprised of 802.11g and 802.11b standard equipment.
802.11n Protection
Defines the 802.11n Protection setting.
Auto
- the DVW326 uses Request to Send/Clear to Send
(RTS/CTS) to improve the performance in 802.11 mixed
environments.
Off
- the 802.11 performance is maximized under most
conditions, while the other 802.11 modes (802.11b, etc.) are
secondary.
Short Guard Interval
Defines a transmission interval so data transmissions do not
interfere with each other.
Basic Rate Set
Selects the rate that all wireless clients must support to connect
to the DVW326. The options are
All
and
Default
.
Multicast Rate
Specifies the rate at which multicast packets are transmitted and
received on your wireless network.
NPHY Rate
Sets the Physical Layer (NPHY) rate. Choose Legacy Rate to
use 802.11a or 802.11g modes, and then choose the rate in the
Legacy Rate field.
Legacy Rate
Sets the wireless rate to the chosen 802.11a or 802.11g legacy
rate.
Beacon Interval
Specifies 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 DVW326 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
Specifies the DTIM interval from 3 to 255ms. This value
indicates how often the DVW326 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.
Page 82 / 119
Ubee Interactive
Using the Access Control Option
Ubee DVW326 Advanced Wireless Voice Gateway Subscriber User Guide
•
March 2014
78
9.4
Using the Access Control Option
Use the
Access Control
option to configure which clients can access your wireless
network.
Steps
To configure client access:
1.
Click
Wireless
from the main menu.
2. Click
Access Control
from the left side menu.
Field descriptions are listed below the
screen example.
Fragmentation
Threshold
Specifies the fragmentation threshold packet size between 256-
2346 bytes. Fragmentation takes place when a packet’s size
exceeds the fragmentation threshold.
RTS Threshold
Specifies the RTS threshold from 0 to 2347ms. This setting
determines how large a packet can be before the DVW326
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.
Apply
Saves changes.
Label
Description
Page 83 / 119
Ubee Interactive
Using the Access Control Option
Ubee DVW326 Advanced Wireless Voice Gateway Subscriber User Guide
•
March 2014
79
Label
Description
Wireless Interface
Defines the network name (SSID) and MAC address for which
you are setting access control parameters.
MAC Restrict Mode
Controls wireless access to your network by MAC address.
Disabled
turns off MAC restrictions and allows any
wireless client to connect to this device. However, if you
use other security mechanisms for access to the wireless
network, clients must still adhere to those restrictions.
Allow
creates a list of wireless clients that can connect to
the wireless network. Enter the MAC addresses of these
clients in the MAC Addresses fields. MAC addresses not
on the list, are not allowed access to your wireless
network.
Deny
creates a list of wireless clients that you do not
want to have access to your wireless network. Enter the
MAC addresses of these clients in the MAC Addresses
fields.
MAC Addresses
Defines the MAC addresses. Note: You may cut and paste
MAC addresses from the connected clients list at the bottom
of the screen.
Apply
Saves changes when clicked.
Connected Clients
Lists wireless clients currently connected listed by MAC
address.
MAC Address
– Displays the MAC addresses entered in
the MAC Addresses field (see above).
Age(s)
– Displays the duration since the wireless client’s
polled values were sent to the device. The values include
all information shown on this screen. The lower the
number, the more current its data.
RSSI(dBm)
– Displays the received signal strength from
the device to the wireless cable modem. This value is
commonly used to assist in troubleshooting wireless
performance issues. A signal strength between 0dBm
and -65dBm is considered optimal. Levels of -66dBm and
lower (for example, -70, -80, etc.) have a downward
impact on wireless data throughput. Refer to
Understanding Received Signal Strength on page 83
for
more information.
IP Address
– Displays the IP address assigned to this
wireless client.
Host Name
– Displays the host name of the wireless
client.
Mode
– Indicates the applicable 802.11a/b/g/n standard
used by the connected client device.
Speed (kbps)
– Displays the maximum theoretical link
speed negotiated
between the wireless gateway and the
client, not including the overhead associated with
encryption, and so on. For example, actual speeds with
WEP encryption enabled a
re typically less than half of the
negotiated link speed. TKIP encryption can also affect
performance. AES is the most efficient and secure with
the highest throughput possible. You can disable WMM if
throughput on some client adapters is adversely affected.
Page 84 / 119
Ubee Interactive
Using the Wi-Fi Multimedia Option
Ubee DVW326 Advanced Wireless Voice Gateway Subscriber User Guide
•
March 2014
80
9.5
Using the Wi-Fi Multimedia Option
Use the Wi-Fi Multimedia option to configure the quality of service (QoS) to ensure the
best service in your wireless networks.
Controls WLAN transmission priority on packets transmitted over the wireless network.
Wi-Fi Multi-Media Quality of Service (WMM QoS) is a part of the IEEE 802.11e QoS
enhancement to certified Wi-Fi wireless networks.
WMM QoS prioritizes wireless traffic according to the delivery requirements of the
individual user and applications. On wireless access points without WMM QoS, all
traffic streams are given the same access priority to the wireless network. If a new
traffic stream creates a data transmission demand that exceeds the current network
capacity, the new traffic stream reduces the throughput of the other traffic streams.
WMM QoS capability allows you to assign access categories (ACs) to various packet
streams. The assigned AC of a packet stream depends on the packet’s priority, such
as a priority assigned by an application (also referred to as a user priority (UP). An AC
may include a common set of enhanced distributed channel access (EDCA)
parameters used by QoS to contend for a channel to transmit packets with certain
priorities.
Different ACs can be associated with different power saving parameters. For example,
one power saving parameter might be the delivery mechanism used by an access
point (AP) to deliver packets to a station (STA) that is operating in a reduced power
mode.
WMM transmit opportunity (TXOP) is assigned to each access point. The bounded
time interval during which a station can send as many frames as possible as long as
the transmission time does not extend past the maximum duration of the TXOP. If a
frame is too large to be transmitted in a single TXOP, it should be fragmented into
smaller frames. Using TXOP reduces the problem of low rate stations gaining too
much channel time in the legacy 802.11 DCF MAC. A TXOP time interval of 0 means
it is limited to a single MAC service data unit (MSDU) or MAC management protocol
data unit (MMPDU).
Note
WMM may need to be disabled to avoid throughput impacts to other wireless devices.
Steps
To configure the multimedia wireless option:
1.
Click
Wireless
from the main menu.
2. Click
WMM
(Wi-Fi Multimedia
)
from the left side menu. Field descriptions are listed
below the screen example.
Page 85 / 119
Ubee Interactive
Using the Wi-Fi Multimedia Option
Ubee DVW326 Advanced Wireless Voice Gateway Subscriber User Guide
•
March 2014
81
Label
Description
WMM Support
Enables (On) or disables (Off) WMM support.
No-Acknowledgement
Enables (On) or disables (Off) acknowledging data frames. In
QoS mode, frames to send can have two values: QosAck and
QosNoAck. Frames with QosNoAck are not acknowledged,
avoiding the retransmission of highly time-critical data.
Power Save Support
Enables (On) or disables (Off) power savings. WMM Power
Save increases the efficiency and flexibility of data transmission.
The wireless client device can “doze” between packets to save
power, while the wireless access point buffers downlink frames.
The application chooses the time to wake up and receive data
packets to maximize power conservation without sacrificing
quality of service.
Apply
Saves changes to the WMM settings above.
EDCA AP Parameters
Allows you to prioritize wireless network traffic. Enhanced
Distributed Channel Access – Access Point (EDCA-AP)
provides four access categories (ACs):
AC_BE
– Best Effort, medium throughput and delay. Most
traditional IP data is sent to this queue.
AC_BK
– Background, high throughput. Bulk data that
requires maximum throughput and is not time-sensitive is
sent to this queue (for example, FTP data).
AC_VI
– Video
AC_VO
– Voice

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