DSL-6740U
VDSL/Ethernet Router with Wi-Fi
and Built-in Switch
User Manual
Configuring via Web-based Interface
Parameter
Description
Direction
The direction of this connection.
ATM
VPI
Virtual Path Identifier.
The valid range is from 0 to 250.
VCI
Virtual Circuit Identifier.
The valid range is from 32 to 65535.
Encapsulation Mode
Select
LLC
or
VC
from the drop-down list.
QoS
A class of traffic for this connection.
UBR
(
Unspecified Bit Rate
): The UBR service is used for applications
that allow various delays and losses of packets. It is appropriate to
use the UBR service for text/data/image transfer applications, as
well as messaging, distribution, retrieval, and remote terminal
applications.
UBR With PCR
(
Unspecified Bit Rate with Peak Cell Rate
): The UBR service is
used for applications that allow various delays and losses of packets.
The Peak Cell Rate is a determining factor in how often cells are
sent in an effort to minimize lag or jitter caused by traffic
inconsistencies. When you select this value from the drop-down list,
the
Peak Cell Rate
field is displayed. Specify a required value (in
cells per second).
CBR
(
Constant Bit Rate
): This service is used for applications that
require a constant data rate. It is mostly used for transferring
uncompressed audio and video, e.g. videoconferencing, interactive
audio (telephony), audio/video distribution (television, distance
education, e-shops), and retrieval (video-on demand, audio
libraries). When you select this value from the drop-down list, the
Peak Cell Rate
field is displayed. Specify a required value (in
cells per second).
Non Realtime VBR
(
Non-Real-time Variable Bit Rate
): This service can be used for
transferring data that have critical response-time requirements, e.g.
air ticket booking, bank transactions, and process monitoring. When
you select this value from the drop-down list, the
Peak Cell Rate
,
Sustainable Cell Rate
, and
Maximum Burst Size
fields are
displayed. Specify required values.
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