User's Manual

66xx/67xx Router Users Guide 53
5. Under Select DSL Link Type select the appropriate DSL link type: Select EoA for PPPoE,
IPoE, and Bridge connections.
6. From the Encapsulation Mode drop down select the appropriate option:
For EoA options (PPPoE, IPoE, Bridge) select LLC/SNAP BRIDGING
For PPPoA select VC/MUX
For IPoA select LLC/SNAP ROUTING
7. From the Service Category drop down select the type of service.
The service category selection will be provided by your ISP. The service category defines
five classes of traffic:
 UBR Without PCR (Unspecified Bit Rate without Peak Cell Rate)—UBR service is suitable
for applications that can tolerate variable delays and some cell losses. Applications suitable
for UBR service include text/data/image transfer, messaging, distribution, and retrieval and
also for remote terminal applications such as telecommuting.
 UBR With PCR (Unspecified Bit Rate with Peak Cell Rate).
• Specify a Peak cell Rate. The Peak cell rate is 1-3442 (cells / sec).
 CBR (Constant Bit Rate): used by applications that require a fixed data rate that is
continuously available during the connection time. It is commonly used for
uncompressed audio and video information such as videoconferencing, interactive audio
(telephony), audio / video distribution (e.g. television, distance learning, and pay-per-
view), and audio / video retrieval (e.g. video-on-demand and audio library).
• Specify a Peak cell Rate. The Peak Cell Rate is rate is 1-3442 (cells / sec).
 Non Realtime VBR (Non-Real-time Variable Bit Rate): can be used for data transfers
that have critical response-time requirements such as airline reservations, banking
transactions, and process monitoring.
• Specify a Peak cell Rate. The Peak Cell Rate is rate is 1-3442 (cells / sec).
• Sustainable Cell Rate. The maximum Sustainable Cell Rate is rate is 1-3442
(cells / sec).1-3442 (cells / sec).
• Maximum Burst Size. The maximum number of contiguous cells that can be sent
at the Peak Cell Rate. The maximum burst size is 1-1000000 (cells / sec).
 Realtime VBR (Real-time Variable Bit Rate)—used by time-sensitive applications such
as real-time video. Rt-VBR service allows the network more flexibility than CBR.
• Specify a Peak cell Rate. The Peak Cell Rate is rate is 1-3442 (cells / sec).
• Sustainable Cell Rate. The maximum Sustainable Cell Rate is rate is 1-3442
(cells / sec).1-3442 (cells / sec).
• Maximum Burst Size. The maximum number of contiguous cells that can be sent
at the Peak Cell Rate. The maximum burst size is 1-1000000 (cells / sec).
If using UBR without PCR, select the IP Quality of Service (QoS) algorithm. The options
are Weighted Round Robin or Weighted Fair Queuing.
8. Select the queuing option, either Weighted Round Robin or Weighted Fair Queuing.
Use the default values unless directed by your ISP to change the values.
9. Click Apply/Save to add the appropriate WAN service.