ZyXEL P-870MH-C1 User Guide - Page 79

DSL PTM Interface Configuration continued, Table 12

Page 79 highlights

Chapter 5 WAN Setup Table 12 DSL PTM Interface Configuration (continued) LABEL DESCRIPTION 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 Realtime VBR (real-time Variable Bit Rate) for applications with bursty connections that require closely controlled delay and delay variation. Select Non Realtime VBR (non real-time Variable Bit Rate) for connections that do not 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. Sustainable Cell Rate This field is not available when you select UBR Without PCR. 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 This field is available only when you select Non Realtime VBR or Realtime VBR. 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. Select Select Default Mode to allow only one WAN service over a single Connection Mode virtual circuit. Select VLAN MUX Mode to allow multiplexing of multiple protocols over a single virtual circuit. You need to assign a VLAN ID and priority level to traffic through each WAN connection. All WAN connections share one MAC address. Back Apply/Save This field is not available if you select PPPoA or IPoA as the DSL link type. The Device uses Default Mode automatically for PPPoA or IPoA. Click this button to return to the previous screen without saving any changes. Click this button to save your changes and go back to the previous screen. P-870HN-5xb User's Guide 79

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Chapter 5 WAN Setup
P-870HN-5xb User’s Guide
79
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
Realtime VBR
(real-time Variable Bit Rate) for applications
with bursty connections that require closely controlled delay and delay
variation.
Select
Non Realtime VBR
(non real-time Variable Bit Rate) for
connections that do not 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
.
Sustainable
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
.
Select
Connection Mode
Select
Default Mode
to allow only one WAN service over a single
virtual circuit.
Select
VLAN MUX Mode
to allow multiplexing of multiple protocols
over a single virtual circuit. You need to assign a VLAN ID and priority
level to traffic through each WAN connection. All WAN connections
share one MAC address.
This field is not available if you select
PPPoA
or
IPoA
as the DSL link
type. The Device uses
Default Mode
automatically for
PPPoA
or
IPoA
.
Back
Click this button to return to the previous screen without saving any
changes.
Apply/Save
Click this button to save your changes and go back to the previous
screen.
Table 12
DSL PTM Interface Configuration (continued)
LABEL
DESCRIPTION