ZyXEL Communications Vantage CNM 2.3 User Manual page 104

Chapter 5 Device Network Settings
Table 29 Device Operation > Device Configuration > Network > WAN > Setup
(Prestige) (continued)
LABEL
Multiplex
Virtual Circuit ID
VPI
VCI
ATM QoS Type
Cell Rate
Peak Cell Rate
Sustain Cell Rate
Maximum Burst Size
Login Information
Service Name
(Appears when you
use PPPoE
encapsulation)
PPPoE +
PPPoE_Client_PC
(Appears when you
use PPPoE
encapsulation)
User Name
Password
104
DESCRIPTION
Select the method of multiplexing used by your ISP from the
drop-down list. Choices are VC or LLC.
VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier)
define a virtual circuit. Refer to the appendix for more
information.
The valid range for the VPI is 0 to 255. Enter the VPI assigned to
you.
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.
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 (Variable Bit Rate) for bursty traffic and
bandwidth sharing with other applications.
Cell rate configuration often helps eliminate traffic congestion
that slows transmission of real time data such as audio and
video connections.
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.
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) refers to the maximum number of
cells that can be sent at the peak rate. Type the MBS, which is
less than 65535.
(PPPoA and PPPoE encapsulation only)
This field is only available when PPPoE encapsulation is
selected. Type the PPPoE service name provided to you. PPPoE
uses a service name to identify and reach the PPPoE server.
This field is only available when PPPoE encapsulation is
selected.
Select the check box to enable PPPoE pass through. In addition
to the device's built-in PPPoE client, you can enable PPPoE pass
through to allow up to ten hosts on the LAN to use PPPoE client
software on their computers to connect to the ISP via the device.
Each host can have a separate account and a public WAN IP
address. PPPoE pass through is an alternative to NAT for
application where NAT is not appropriate. Disable PPPoE pass
through if you do not need to allow hosts on the LAN to use
PPPoE client software on their computers to connect to the ISP.
Enter the user name exactly as your ISP assigned. If assigned a
name in the form user@domain
service name, then enter both components exactly as given.
Enter the password associated with the user name above.
where domain identifies a
Vantage CNM User's Guide