C H A P T E R
5-1
Cisco Broadband Cable Command Reference Guide
OL-1581-08
5
Cisco CMTS Debugging Commands
This chapter describes the cable-specific debugging commands for the Cisco Cable Modem Termination
System (CMTS) universal broadband routers. This chapter contains the following sections:
•
Supported Platforms and Cisco IOS Releases, page 5-3
—Describes the Cisco CMTS platforms and
Cisco IOS releases that support the commands listed in this section.
•
Debug Commands, page 5-4
—Describes the cable-specific commands that are used to troubleshoot
the Cisco CMTS configuration and operation, and to troubleshoot the operation of a connected cable
modem (CM).
Note
This chapter documents only cable-specific debugging commands. For non-cable-specific debugging
commands, see the command reference documentation for
Cisco IOS Release 12.2
, available on
Cisco.com
and the Documentation CD-ROM. For information about other cable-specific commands for
the Cisco CMTS routers, see
Chapter 2, “Cisco CMTS Configuration Commands”
and
Chapter 3,
“Cisco CMTS Show Commands.”
Caution
The
debug
commands are primarily intended for use in controlled test and troubleshooting situations
with a limited volume of traffic. You should use caution when enabling debug messages because sending
these messages to the console consumes system resources. Cisco recommends that when you use the
debug cable
commands, you limit their output to a particular interface or CM, using the
debug cable
interface
command.
Tip
When using the
debug
commands, you might occasionally see messages similar to the following:
%LCLOG-3-INVSTATE: LC logger in bad state (LC=5/0,state=WAITING FOR TEXT,msg=MSG
START)-Traceback
These messages indicate that the processor has displayed the first part of one message and was waiting
for the information needed for the second half of the message when a new message was generated. The
debug routines thus print the new message without waiting for the information from the previous
message. These messages are informational only and can be ignored.