Installation guide

5-52
Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide
OL-2238-03
Chapter 5 Troubleshooting the System
Using Cable Interface debug Commands
debug cable startalloc Command (Channel Allocations)
This command activates debugging of channel allocations on the HFC network. When this command is
activated, messages generated when channels are allocated to cable interfaces on the HFC network are
displayed on the Cisco uBR7100 series router console. The format for the command follows:
CMTS01# debug cable startalloc
To deactivate debugging of cable channel allocations, use the following command:
CMTS01# no debug cable startalloc
debug cable transmit Command (CMTS Transmissions)
This command activates debugging of transmissions from the Cisco uBR7100 series router across the
HFC network. When this command is activated, messages generated at the headend are displayed on the
Cisco uBR7100 series router console. The format for the command follows:
CMTS01# debug cable transmit
To deactivate debugging of cable transmissions, use the following command:
CMTS01# no debug cable transmit
debug cable ucc Command (Upstream Channel Change Messages)
This command activates debugging of upstream channel change (UCC) messages generated when
cable interfaces request or are assigned a new channel. When this command is activated, messages
related to upstream channel changes are displayed on the Cisco uBR7100 series router console. The
format for the command follows:
CMTS01# debug cable ucc
To deactivate debugging of cable upstream channel changes, use the following command:
CMTS01# no debug cable ucc
debug cable ucd Command (Upstream Channel Description Messages)
This command activates debugging of upstream channel descriptor (UCD) messages. UCD messages
contain information about upstream channel characteristics and are sent to the cable modems on the HFC
network. Cable modems that are configured to use enhanced upstream channels use these UCD messages
to identify and select an enhanced upstream channel to use. When this command is activated, messages
related to upstream channel descriptors are displayed on the Cisco uBR7100 series router console. The
format for the command is as follows:
CMTS01# debug cable ucd
To deactivate debugging of cable upstream channel descriptor, use the following command:
CMTS01# no debug cable ucd