ZyXEL Communications G.SHDSL.bis 4-port Security Gateway P-793H - Manual (Page 277)

P-793H User’s Guide
Chapter 26 Remote Node Setup 277
Figure 153 Menu 11.6: Remote Node ATM Layer Options
The following table describes the fields in this menu.
Menu 11.6 - Remote Node ATM Layer Options
VPI/VCI (VC-Multiplexing)
VC Options for IP: VC Options for Bridge:
VPI #= 0 VPI #= 0
VCI #= 38 VCI #= 38
ATM QoS Type= UBR ATM QoS Type= UBR
Peak Cell Rate (PCR)= 0 Peak Cell Rate (PCR)= 0
Sustain Cell Rate (SCR)= 0 Sustain Cell Rate (SCR)= 0
Maximum Burst Size (MBS)= 0 Maximum Burst Size (MBS)= 0
Menu 11.6 - Remote Node ATM Layer Options
VPI/VCI (LLC-Multiplexing or PPP-Encapsulation)
VPI #= 0
VCI #= 38
ATM QoS Type= UBR
Peak Cell Rate (PCR)= 0
Sustain Cell Rate (SCR)= 0
Maximum Burst Size (MBS)= 0
Table 104 Menu 11.6: Remote Node ATM Layer Options
FIELD DESCRIPTION
VPI The valid range for the VPI is 0 to 255. Enter the VPI assigned to you.
VCI The valid range for the VCI is 32 to 65535 (0 to 31 is reserved for local
management of ATM traffic). Enter the VCI assigned to you.
ATM QoS Type Select CBR (Constant Bit Rate) to specify fixed (always-on) bandwidth for
voice or data traffic. Select UBR (Unspecified Bit Rate) for applications that are
non-time sensitive, such as e-mail. Select VBR-nRT (Variable Bit Rate-non
Real Time) or VBR-RT (Variable Bit Rate-Real Time) for bursty traffic and
bandwidth sharing with other applications.
Peak Cell Rate (PCR) 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.
Sustain Cell Rate
(SCR)
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.
Maximum Burst Size
(MBS)
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.
Once you have completed filling in this menu, press [ENTER] at the message “Press ENTER to
Confirm...” to save your configuration and return to menu 11.1, or press [ESC] at any time to cancel.