Chapter 4 Troubleshooting the System

Using Cable Interface Debug Commands

To deactivate debugging of cable MAC messages, use the following command:

CMTS01# no debug cable mac-messages

Debug Cable Maps

This command activates debugging of cable maps that identify data on cable interfaces. When this command is activated, messages related to cable maps are displayed on the Cisco uBR7200 series console. The format for the command follows:

CMTS01# debug cable map

To deactivate debugging of cable maps, use the following command:

CMTS01# no debug cable map

Debug Cable Modems

This command activates debugging of cable modems. When this command is activated, messages from cable modems on the HFC network are displayed on the Cisco uBR7200 series console. The format for the command follows:

CMTS01# debug cable modems

To deactivate debugging of cable MAC messages, use the following command:

CMTS01# no debug cable modems

Debug Cable PHY Messages

This command activates debugging of messages generated in the cable PHY—the physical layer where upstream and downstream activity between the Cisco uBR7200 series and the HFC network is controlled. When this command is activated, messages generated in the cable PHY are displayed on the Cisco uBR7200 series console. The format for the command follows:

CMTS01# debug cable phy

To deactivate debugging of the cable PHY, use the following command:

CMTS01# no debug cable phy

Activate QoS Debug

This command activates debugging of QoS. When this command is activated, messages related to QoS parameters are displayed on the Cisco uBR7200 series console. The format for the command follows:

CMTS01# debug cable qos

To deactivate debugging of QoS, use the following command:

CMTS01# no debug cable qos

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Cisco Systems uBR7200 Series manual Debug Cable Maps, Debug Cable Modems, Debug Cable PHY Messages, Activate QoS Debug