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Cisco Broadband Cable Command Reference Guide
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Chapter 5 Cisco CMTS Debugging Commands
debug cable dcc
debug cable dcc
To display information about DOCSIS 1.1 Dynamic Channel Change (DCC) messages, use the
debug
cable dcc
command in Privileged EXEC mode. To disable debugging output for DCC messages, use the
no
form of this command.
debug cable dcc
no debug cable dcc
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This command shows debugging messages about the DCC Request (DCC-REQ) message that the CMTS
sends to the CM, and about the DCC Response (DCC-RSP) message that the CM sends in reply.
Caution
The debug commands are primarily intended for use in controlled test and troubleshooting situations
with a limited volume of traffic. In particular, avoid using the
debug cable dcc
command on an interface
with a significant number of CMs, because the resulting volume of debug output could impact system
performance. Cisco recommends that when you use the
debug cable dcc
command, you limit its output
to a particular interface or CM, using the
debug cable interface
command.
Tip
To display the contents of the DCC messages, enable TLV debugging with the
debug cable tlvs
command.
Note
See the DOCSIS 1.1 specification (revision SP-RFIv1.1-I05-000714 and above) for information on the
content and format of the DCC-REQ and DCC-RSP messages.
Release
Modification
12.1(7)CX
This command was introduced for DOCSIS 1.1 operation.
12.2(4)BC1
Support was added to the Release 12.2 BC train.