ZyXEL P-2812HNU-F1 User Guide - Page 105

Table 10, Label, Description

Page 105 highlights

Chapter 5 Broadband Table 10 Broadband Add/Edit: Routing- PPPoA (ADSL) (continued) LABEL DESCRIPTION WAN Service Type This field is available only when you select Routing in the Mode field. Select PPPoA as the method of encapsulation used by your ISP. IPv6/IPv4 DualStack ATM PVC Configuration • PPP over ATM (PPPoA) - PPPoA allows just one PPPoA connection over a PVC. Select Enable to allow the Device to run IPv4 and IPv6 at the same time. If this function is disabled, the Device only runs IPv4. VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier) define a virtual circuit. VPI VCI DSL Link Type Encapsulation Mode This section is available only when you select ADSL in the Type field to configure an ATM layer-2 interface. 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. The DSL link type is set to PPPoA (PPP over ATM) to allow just one PPPoA connection over a PVC. Select the method of multiplexing used by your ISP from the drop-down list. Choices are: LLC/SNAP-BRIDGING In LCC encapsulation, bridged PDUs are encapsulated by identifying the type of the bridged media in the SNAP header. This is available only when the DSL Link Type is set to EoA. Service Category VC/MUX: In VC multiplexing, each protocol is carried on a single ATM virtual circuit (VC). To transport multiple protocols, the Device needs separate VCs. There is a binding between a VC and the type of the network protocol carried on the VC. This reduces payload overhead since there is no need to carry protocol information in each Protocol Data Unit (PDU) payload. Select UBR Without PCR for applications that are non-time sensitive, such as e-mail. Select CBR (Constant 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. Peak Cell Rate Select Realtime VBR (real-time Variable Bit Rate) for applications with bursty connections that require closely controlled delay and delay variation. 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. PPP Information This field is available only when you select Non Realtime VBR or Realtime VBR. This section is available only when you select Routing in the Mode field and PPPoE or PPPoA in the WAN Service Type field. P-2812HNU(L)-Fx Series User's Guide 105

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Chapter 5 Broadband
P-2812HNU(L)-Fx Series User’s Guide
105
WAN Service Type
This field is available only when you select
Routing
in the
Mode
field. Select
PPPoA
as the method of encapsulation used by your ISP.
PPP over ATM (PPPoA)
- PPPoA allows just one PPPoA connection over a
PVC.
IPv6/IPv4
DualStack
Select
Enable
to allow the Device to run IPv4 and IPv6 at the same time. If
this function is disabled, the Device only runs IPv4.
ATM PVC
Configuration
VPI (Virtual Path Identifier) and VCI (Virtual Channel Identifier) define a virtual
circuit.
This section is available only when you select
ADSL
in the
Type
field to
configure an ATM layer-2 interface.
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.
DSL Link Type
The DSL link type is set to
PPPoA
(PPP over ATM) to allow just one PPPoA
connection over a PVC.
Encapsulation
Mode
Select the method of multiplexing used by your ISP from the drop-down list.
Choices are:
LLC/SNAP-BRIDGING
:
In LCC encapsulation, bridged PDUs are encapsulated
by identifying the type of the bridged media in the SNAP header. This is
available only when the
DSL Link Type
is set to
EoA
.
VC/MUX:
In VC multiplexing, each protocol is carried on a single ATM virtual
circuit (VC). To transport multiple protocols, the Device needs separate VCs.
There is a binding between a VC and the type of the network protocol carried
on the VC. This reduces payload overhead since there is no need to carry
protocol information in each Protocol Data Unit (PDU) payload.
Service Category
Select
UBR Without PCR
for applications that are non-time sensitive, such as
e-mail.
Select
CBR
(Constant 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
.
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
.
PPP Information
This section is available only when you select
Routing
in the
Mode
field and
PPPoE
or
PPPoA
in the
WAN Service Type
field.
Table 10
Broadband Add/Edit: Routing- PPPoA (ADSL) (continued)
LABEL
DESCRIPTION