Chapter 14 xDSL Profiles Setup

Table 25 Port Profile (continued)

LABEL

DESCRIPTION

IGMP Filter Profile

Click IGMP Filter Profile to open the IGMP Filter Profile screen where you can

 

configure IGMP multicast filter profiles (see Section 14.8 on page 135).

 

 

Index

This is the port profile index number.

 

 

Name

These are the names of individual profiles. The DEFVAL profile always exists

 

and all of the DSL ports have it assigned to them by default. You can use up to

 

31 ASCII characters; spaces are not allowed.

 

 

Latency Mode

This is the ADSL latency mode (Fast or Interleave) for the ports that belong to

 

this profile.

 

 

Down/Up Stream

These are the maximum downstream and upstream transfer rates for the ports

Rate (kbps)

that belong to this profile.

 

 

Select

Select a profile’s Select radio button and click Modify to edit the profile.

Modify

 

 

 

Select

Select a profile’s Select radio button and click Delete to remove the profile.

Delete

 

 

 

 

The rest of the screen is for profile configuration.

 

 

Name

When editing a profile, this is the name of this profile. When adding a profile,

 

type a name (up to 31 characters) for the profile.

 

 

Latency Mode

This field sets the ADSL latency mode for the ports that belong to this profile.

 

Select Fast mode to use no interleaving and have faster transmission (a “fast

 

channel”). This would be suitable if you have a good line where little error

 

correction is necessary.

 

Select Interleave mode to use interleave delay when transmission error

 

correction (Reed- Solomon) is necessary due to a less than ideal telephone line.

 

See Section 13.4 on page 108 for more on interleave delay.

 

 

Up Stream

The following parameters relate to upstream transmissions.

 

 

Max Rate

Type a maximum upstream transfer rate (64 to 4096 Kbps) for this profile.

 

Configure the maximum upstream transfer rate to be less than the maximum

 

downstream transfer rate.

 

 

Min Rate

Type the minimum upstream transfer rate (32 to 4096 Kbps) for this port.

 

Configure the minimum upstream transfer rate to be less than the maximum

 

upstream transfer rate.

 

 

Interleave Delay

Configure this field when you set the Latency Mode field to Interleave. Type

 

the number of milliseconds (1-255) of interleave delay to use for upstream

 

transfers. It is recommended that you configure the same latency delay for both

 

upstream and downstream.

 

 

Max SNR

Type the maximum upstream signal to noise margin (0-31 dB).

 

 

Min SNR

Type the minimum upstream signal to noise margin (0-31 dB). Configure the

 

minimum upstream signal to noise margin to be less than or equal to the

 

maximum upstream signal to noise margin.

 

 

Target SNR

Type the target upstream signal to noise margin (0-31 dB). Configure the target

 

upstream signal to noise margin to be greater than or equal to the minimum

 

upstream signal to noise margin and less than or equal to the maximum

 

upstream signal to noise margin.

 

 

Up Shift SNR

The upstream up shift signal to noise margin (0-31 dB). When the channel’s

 

signal to noise margin goes above this number, the device can attempt to use a

 

higher transfer rate. Configure the upstream up shift signal to noise margin to be

 

greater than or equal to the target upstream signal to noise margin and less than

 

or equal to the maximum upstream signal to noise margin.

 

 

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IES-612-51A User’s Guide