Octal-Port DMT ATU-C Line Card
Monitoring and Maintaining the 8xDMT Line Card
8
Cisco IOS Release 12.1(6)DA

Troubleshooting Tips

Cisco provides Cisco.com as a starting point for all technical assistance. Customers and partners can
obtain documentation, troubleshooting tips, and sample configurations from online tools.
For Cisco.com registeredusers, additional troubleshooting tools are available from the TAC website. To
obtain troubleshooting help, go to the Cisco Troubleshooting Assistant web site on Cisco Connection
Online (CCO) at:
http://www.cisco.com/kobayashi/support/tac/tsa/dslstep.html
Also see the “Monitoring and Maintaining the 8xDMT Line Card” section on page 8.
Monitoring and Maintaining the 8xDMT Line Card
Use the following commands to monitor and maintain the 8xDMT line card:
Step3 DSLAM(config-dsl-profile)# dmt
check-bytes fast downstream 0 upstream 0 Set the upstream and downstream FEC check (redundancy)bytes
to 0.
Step4 DSLAM(config-dsl-profile)# dmt margin
downstream 12 upstream 6 Set the downstream and upstream signal-to-noise ratio (SNR)
margins for a DSL profile.
Step5 DSLAM(config-dsl-profile)# dmt
overhead-framing mode1 Set the overhead framing mode, in this example to 1.
Step6 DSLAM(config-dsl-profile)# exit Return to the global configuration prompt.
Command Purpose
Command Purpose
DSLAM# show dsl interface atm s
lot/port
DSLAM# show dsl status DMT
These commands display basic information about the DSL link,
including port status, dsl statistics, line errors, and cards detected.
DSLAM# show facility-alarm status The show facility-alarm status command displays all of the current
major and minor alarms and the user-configurable alarm thresholds
for temperature. After an alarm condition is indicated (by LEDs or
bells), you can use the show facility-alarm status command to
determine the cause of the alarm.
Note You must turn on the alarms in the profile for alarms to
be displayed.
DSLAM# show hardware Theshow hardware command shows information on each of the
slots in your chassis. It tells whether line cards, fan trays, and PEMs
are present.