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DSL-524T ADSL Router Manual
44
• CBR – Constant Bit Rate, usually used in circumstances where very low packet loss and very low
Cell Delay Variable (CDV) are desirable.
• VBR – Variable Bit Rate, usually used when network traffic is characterized by bursts of packets
at variable intervals, and some moderate packet loss and delay is acceptable. This category is
typically used for audio and video applications such as teleconferencing. The network must
support QoS Class 2 to use VBR.
PCR: PCR (Peak Cell Rate) refers to the Bandwidth control on your modem. This field allows you to
enter a value representing the maximum bps (bits per second) the modem can receive. This field is
limited by the stream coming form your ISP.
SCR: SCR (Sustained Cell Rate) refers to the Bandwidth control on your modem. This field allows
you to enter a value representing the minimum bps (bits per second) the modem can receive. After
making the changes to this screen, click Apply to let your changes take effect.