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Chapter 5
Cisco CMTS Debugging Commands
debug cable arp
To enable debugging of the Address Resolution Protocol (ARP) when it is used on the cable interface,
use the debug cable arp command in privileged EXEC mode. To disable debugging output, use the no
form of the command.
Syntax Description
This command has no arguments or keywords.
Command Modes
Privileged EXEC
Command History
Release
12.2(11)BC3
Usage Guidelines
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 arp 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 arp command, you limit its output
to a particular interface or CM, using the
commands.
Examples
The following shows typical output for a particular cable modem using the debug cable arp command:
Router# debug cable arp
CMTS arp debugging is on
Router# debug cable mac-address 0020.4072.7418
ARPGLEAN cmts glean idb Cable3/0 MAC 0020.4072.7418 SID 2 ipaddr 31.0.0.2
Related Commands
Command
debug cable dhcp
debug cable encap
debug cable interface
debug cable
mac-address
OL-1581-08
debug cable arp
no debug cable arp
Description
Enables debugging of the Dynamic Host Configuration Protocol on the cable
interface.
Enables debugging of encapsulated packets that are transmitted over the
cable interface.
Enables debugging on a specific cable interface.
Enables debugging for a particular CM.
Modification
This command was introduced.
debug cable interface
Cisco Broadband Cable Command Reference Guide
debug cable arp
or
debug cable mac-address
5-7
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