Open-Networks iConnect625W Router Manual PDF (Setup & Configuration Guide)

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iConnect625W ADSL/ADSL2+ Router User Guide

Field

Description

VBR

VBR is the bandwidth service

that allows users to specify a

throughput capacity (i.e., a

peak rate) and a sustained

rate but data is not sent

evenly. VBR is often used

when transmitting compressed

packetized voice and video

data, such as video

conferencing.

PCR

The

Peak Cell Rate,

measured in cells/sec,

is the cell rate that the source may never

exceed.

SCR

Sustained Cell Rate,

measured in cells/sec,

is the average cell rate over the duration of

the connection.

MBS

The

Maximum Burst Size

is a traffic

parameter that specifies the maximum

number of cells that can be transmitted at

the

PCR.

CDVT

The

Cell Delay Variation Tolerance

is the

maximum amount of cell delay variation

that can be accommodated. Cell delay

variation measures the random inter-arrival

times of cells within an ATM connection

due to cell transfer delay caused by

buffering, multiplexing and so on.

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iConnect625W ADSL/ADSL2+ Router User Guide

Field

Description

Auto PVC

The overall operation of the auto-sensing

PVC feature relies on end-to-end OAM

pings to defined PVCs. There are two

groups of PVCs:

•

Customer default PVCs - defined by

the ISP and the backup PVCs. It

must have 0/35 as the first default

PVC.

•

Backup list of PVCs - it must be of

the following VPI/VCI:

0/35, 8/35,

0/43, 0/51, 0/59, 8/43, 8/51

and

8/59.

These are defined in XLM and

are configurable.

The Auto-sensing PVC feature itself is also

configurable in that the auto-search

mechanism can be disabled.

Upon DSL synchronization, end-to-end

OAM pings will be conducted for every

defined PVC. The result of the pings will be

recorded in an array for later use to

determine the usability of the particular

PVC for connectivity. This list helps the

PVC to manage the available PVC for use,

and needs to be synchronised with

connections made without auto-sensing

PVC.

Once the connection is established, the

PVC is stored in flash as the default PVC.

Therefore upon reboot, this PVC is

automatically chosen as the PVC for that

connection.

The list of default PVCs and backup PVCs

need to be global for the management of all

connections, non auto-sensing PVC

connection and auto-sensing connections.

These lists allow end users to establish

connectivity without keeping track of the

PVC used.

Connect

Click

Connect

to authenticate to your ISP via PPPoE and

connect to the Internet.

Disconnect

Click

Disconnect

to break your Internet connection.

Apply

Applies the changes made to the connection.

Delete

Deletes the connection.

Cancel

Cancels the changes made to the connection.

Page 43 / 181

iConnect625W ADSL/ADSL2+ Router User Guide

7.2.2

PPPoA Connection Setup

PPPoA (Point-to-Point Protocol over ATM) is a network protocol for encapsulating PPP

packets in ATM cells that are carried over the DSL line.

It is used mainly with ADSL

services and is compliant with RFC 2364.

PPP is a method of establishing a network connection/session between network hosts. It

usually provides a mechanism of authenticating users.

Logical Link Control

(LLC) and

Virtual Circuit

(VC) are two different methods of encapsulating the PPP packet. Contact

your ISP to determine which encapsulation is being used on your DSL connection.

To configure

PPPoA

connection, follow the steps below.

Step 1

To begin, click the

Setup tab

on the top menu. Click the

New Connection

link.

The default

PPPoE Connection Setup

page appears:

Step 2

Enter a unique name for your

PPPoA

connection in the

Name

field. The name

must not have spaces and cannot begin with numbers.

Step 3

From the

Type

drop-down list, select

PPPoA

. The default

PPPoA

page

appears:

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iConnect625W ADSL/ADSL2+ Router User Guide

Step 4:

The

NAT

and

Firewall

checkboxes are checked by default under the

Options

field. Leave these in the default mode.

Step 5:

If you want to enable VLAN, refer to the table at the end of this section as a

reference to configure the following fields:

Sharing

: Select

VLAN

to enable the

VLAN ID

and

Priority Bits

fields.

VLAN ID

: Enter the

VLAN ID

Priority Bits

: Select the

Priority Bits

of the VLAN.

Step 6:

In the

PPP Settings

section, select the

Encapsulation Type

(LLC or VC) by

highlighting the appropriate radio button. The default is set to

. Your ISP

should be providing the

Encapsulation Type

. If you are unsure, maintain the

default mode.

Step 7:

Enter your

Username

and

Password

in the respective fields as shown below,

as provided by your ISP.

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iConnect625W ADSL/ADSL2+ Router User Guide

Step 8:

In the

PVC Settings

section, enter the

VPI

and

VCI

values, as provided by your

ISP. These are defaulted to '8' and '35', respectively,

If you need to use the VPI and VCI values in an existing connection, you will need to open

it and edit the settings. It is not possible to have more than one connection using the

same VPI/VCI values.

Step 9:

Select the

QoS

. Leave the default value if you are unsure or if the ISP did not

provide this information.

Step 10

: Click the

Apply

button.

Step 11

: To save your configuration, please refer to the section under

Save / Restart

The following table lists the

PPPoA Connection Setup

screen fields and describes each of

the options:

Field

Description

NAT

Network Address Translation

is a feature that enables you to use

private IP addresses on your computer or your LAN.

This is set to

Enabled

by default for standard operation.

Firewall

Select to enable security for this connection.

This is set to

Enabled

default for standard operation.

Each of the fields for

PPP Settings

is described as follows.

PPP Settings

Encapsulation

Encapsulation is the technique used by layered

protocols in which a layer adds header information

to the protocol data unit (PDU) from the layer

above. Two options are provided:

LLC

and

Rate

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