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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.
Syntax Description
This command has no arguments or keywords.
Defaults
No default behavior or values.
Command Modes
Privileged EXEC
Command History
Release
12.1(7)CX
12.2(4)BC1
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.
The debug commands are primarily intended for use in controlled test and troubleshooting situations
Caution
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
To display the contents of the DCC messages, enable TLV debugging with the
Tip
command.
See the DOCSIS 1.1 specification (revision SP-RFIv1.1-I05-000714 and above) for information on the
Note
content and format of the DCC-REQ and DCC-RSP messages.
Cisco Broadband Cable Command Reference Guide
5-16
debug cable dcc
no debug cable dcc
Modification
This command was introduced for DOCSIS 1.1 operation.
Support was added to the Release 12.2 BC train.
debug cable interface
Chapter 5
Cisco CMTS Debugging Commands
command.
debug cable tlvs
OL-1581-08
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