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Cisco Broadband Cable Command Reference Guide
OL-1581-08
Chapter 5 Cisco CMTS Debugging Commands
debug cable
debug cable
To enable debugging of the cable interface, use the
debug cable
command in privileged EXEC mode.
To disable debugging output, use the
no
form of the command.
debug cable
no debug cable
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC
Command History
Usage Guidelines
This command enables debugging of the cable interfaces. To avoid excessive output that could interfere
with router performance, you should limit debugging to a particular cable interface, using the
debug
cable interface
command, before giving the
debug cable
command.
Examples
The following shows sample output from the
debug cable bpiatp
command:
Router# debug cable
Router#
debug cable interface c3/0
CMTS interface debugging is on
Router#
Jun 25 08:36:37.339: cmts_helper_forward 00e0.a3b6.f0af no match
Jun 25 08:36:37.339: cmts_dhcp_glean: type=2 sid 0 IP=221.222.151.182 dhcp mac=0
Jun 25 08:36:40.339: cmts_helper_forward 00e0.a3b6.f0af no match
Jun 25 08:39:13.419: Failed to find CM with mac address 0006.28dc.37fd
Jun 25 08:39:13.419: Failed to find CM with mac address 00d0.bad3.c0cd
Jun 25 08:39:13.419: Failed to find CM with mac address 0003.e350.9cdb
Jun 25 08:39:40.527: Lookup failed - unable to find CM with SID 0
Jun 25 08:38:53.583: Lookup failed - unable to find CM with SID 0
Note
The last message displayed above, “unable to find CM with SID 0,” is typically generated by the
show
cable
commands and can be ignored.
Related Commands
Release
Modification
11.3 XA
This command was introduced.
Command
Description
debug cable interface
Enables debugging on a specific cable interface.