US Robotics SureConnect U.S. Robotics SureConnect ADSL Ethernet/USB Router User Manual page 13

U.S. Robotics SureConnect ADSL Ethernet/USB Router User Guide
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Type
Service Type
cbr Constant Bit Rate
rtvbr Real Time
Variable Bit Rate
Nrtvbr Non Real Time
Variable Bit Rate:
Ubr Unspecified Bit
Rate
Advance–PPPOE. Use Advance–PPPoE to connect to, or disconnect from a PPPoE
server. Click Start to use the connection. Click Stop to disconnect. The menu also includes
two other button options. Click Default to make the ISP connection your default connection.
Click Delete to delete the connection.
Only data support – NO voice.
Supports real-time applications that require
a fixed amount of bandwidth. These
applications, such as a video stream,
produce data at regular intervals. The user
can specify how much bandwidth that he
wishes to reserve.
Supports time-sensitive applications such
as voice. Varies the rate at which cells
arrive.
Supports applications that have no
constraints on delay and delay variation, but
still have variable-rate and bursty traffic
characteristics.
Best effort service that does not require
tightly constrained delay and delay
variation. UBR provides no specific quality
of service or guaranteed throughput.