User guide

4-10
Configuration Guide for Cisco DSLAMs with NI-2
OL-2074-03
Chapter 4 Configuring Digital Subscriber Lines
Using DSL Profiles
The DSLAM implementation uses the dynamic profile approach as opposed to the static profile
approach. The dynamic profile approach supports a many-to-one correspondence between ports and
profiles; that is, multiple ports can share the same profile but not vice versa. Also, with the dynamic
approach, profiles are created and destroyed dynamically (with the exception of a special profile named
“default”). Direct configuration of port parameters is not allowed.
Note When you create a profile, it inherits all of the configuration settings of the special profile named
“default” at the time of creation. If you subsequently modify the special profile “default,” the changes
do not propagate to profiles created by the original default profile.
Using profiles introduces a new command mode, profile mode. Use the command dsl-profile to enter
profile mode. When you are in profile mode, changes you make to parameters affect only the profile
you specify.
The following example sets the interleaved forward error correction (FEC) check bytes for a profile
named “test” to 6 upstream and 4 downstream. Other profiles do not change:
DSLAM# configure terminal
DSLAM(config)# dsl-profile test
DSLAM(cfg-dsl-profile)# dmt check-bytes interleaved downstream 4 upstream 6
Creating, Modifying, or Deleting a Profile
This section describes how to create or delete a profile, and how to select a profile for modification.
To create a profile, or to select a profile for modification, follow these steps:
To delete a profile, follow these steps:
Examples
The following example creates a DSL profile named “fast2.” After you execute these steps, you can
modify the parameters for this profile:
DSLAM# configure terminal
DSLAM(config)# dsl-profile fast2
DSLAM(cfg-dsl-profile)
#
Command Task
Step 1
DSLAM# configure terminal
Go to global configuration mode.
Step 2
DSLAM(config)# dsl-profile profile-name
Create a profile named profile-name, or select an
existing profile named profile-name for modification.
Command Task
Step 1
DSLAM# configure terminal
Go to global configuration mode.
Step 2
DSLAM(config)# no dsl-profile profile-name
Deleted profile-name.