Chapter 5 Broadband
P-660HN-51 User’s Guide
54
Service Category Select UBR Without PCR or UBR With PCR for applications that are non-time sensitive,
such as e-mail.
Select CBR (Continuous Bit Rate) to specify fixed (always-on) bandwidth for voice or
data traffic.
Select Non Realtime VBR (non real-time Variable Bit Rate) for connections that do
not require closely controlled delay and delay variation.
Select Realtime VBR (real-time Variable Bit Rate) for applications with bursty
connections that require closely controlled delay and delay variation.
Peak Cell Rate Divide the DSL line rate (bps) by 424 (the size of an ATM cell) to find the Peak Cell
Rate (PCR). This is the maximum rate at which the sender can send cells. Type the
PCR here.This field is not available when you select UBR Without PCR.
Sustain Cell Rate The Sustain Cell Rate (SCR) sets the average cell rate (long-term) that can be
transmitted. Type the SCR, which must be less than the PCR. Note that system
default is 0 cells/sec.
This field is available only when you select Non Realtime VBR or Realtime VBR.
Maximum Burst Size Maximum Burst Size (MBS) refers to the maximum number of cells that can be sent at
the peak rate. Type the MBS, which is less than 65535.
This field is available only when you select Non Realtime VBR or Realtime VBR.
Apply Click Apply to save your changes back to the Zyxel Device.
Cancel Click Cancel to exit this screen without saving.
Table 7 Broadband: Add/Edit: Bridge Mode (continued)
LABEL DESCRIPTION
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