Configuring DSL Connections (DSLTNT)

Configuring data transfer rates

To configure the maximum transfer rate for the 24-port SDSL card:

1Open the SDSL profile:

admin>read sdsl {2 1 7}

SDSL/{ shelf-2 slot-1 7 } read

2Enable the line:

admin>set enabled=yes

3List the Line-Config profile:

admin> list line-config

[in SDSL/{ shelf-2 slot-1 7 }:line-config] trunk-group = 0

nailed-group = 1 activation = static

call-route-info = { any-shelf any-slot 0 } data-rate-mode = singlebaud

max-rate = 784000 unit-type = coe

4Specify a maximum rate:

admin> set max-rate=1552000

5Write the profile: admin> write

Configuring per-session data transfer rates

The DSL cards support configuring per-session data transfer rates for individual DSLPipe customer premises equipment (CPE) user sessions.

You can use two different methods to configure the per-session data transfer rates for DSL connections: modem rate control and data-rate limits.

In modem rate control, the DSLTNT initially establishes a CPE session at the maximum available data rate. If the CPE specifies a lower data rate, the DSLTNT terminates the session, then reestablishes it at the rate specified by the CPE . The next time the CPE initiates a connection, the DSLTNT does not retrain if the initial rate is the same or lower than the rate used previously for that CPE.

In data-rate limit, you specify transmit and receive data rate limits that apply to logical sessions on the DSL line. Data-rate limits enable multiple individual sessions on each DSL line.

Following are the Connection profile parameters for configuring per-session data rates:

Parameter/RADIUS attribute

Specifies

Ses-Rate-Type/

Type of DSL connection to rate control. Disabled (the

Ascend-Dsl-Rate-Type (92)

default) means that modem rate control is not active

 

for the connection. Currently, Disabled and

 

ADSL-CAP settings are the only supported options.

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APX 8000/MAX TNT/DSLTNT Physical Interface Configuration Guide

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Lucent Technologies 7820-0802-003 Configuring per-session data transfer rates, Adminread sdsl 2 1, Adminset enabled=yes