Chapter 5 WAN Setup

Table 21 Network > WAN > More Connections: Edit: Advanced Setup (continued)

LABEL

DESCRIPTION

ATM QoS Type

Select CBR (Continuous 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

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

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

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.

 

 

MTU

 

 

 

MTU

The Maximum Transmission Unit (MTU) defines the size of the largest

 

packet allowed on an interface or connection. Enter the MTU in this field.

 

For ENET ENCAP, the MTU value is 1500.

 

For PPPoE, the MTU value is 1492.

 

For PPPoA and RFC, the MTU is 65535.

 

 

Packet Filter

 

 

 

Incoming Filter Sets

 

 

 

Protocol Filter

Select the protocol filter(s) to control incoming traffic. You may choose up to

 

4 sets of filters.

 

You can configure packet filters in the Packet Filter screen. See Chapter 11

 

on page 177 for more details.

 

 

Generic Filter

Select the generic filter(s) to control incoming traffic. You may choose up to

 

4 sets of filters.

 

You can configure generic filters in the Packet Filter screen. See Chapter

 

11 on page 177 for more details.

 

 

Outgoing Filter Sets

 

 

 

Protocol Filter

Select the protocol filter(s) to control outgoing traffic. You may choose up to

 

4 sets of filters.

 

You can configure protocol filters in the Packet Filter screen. See Chapter

 

11 on page 177 for more details.

 

 

Generic Filter

Select the generic filter(s) to control outgoing traffic. You may choose up to

 

4 sets of filters.

 

You can configure generic filters in the Packet Filter screen. See Chapter

 

11 on page 177 for more details.

 

 

Back

Click this to return to the previous screen without saving.

 

 

Apply

Click this to save your changes.

 

 

Cancel

Click this to restore your previously saved settings.

 

 

5.4 The WAN Backup Setup Screen

Use this screen to configure your ZyXEL Device’s WAN backup. Click Network > WAN > WAN Backup Setup.

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P-660HN-F1 User’s Guide