Cisco Systems UBR924 manual Debug cable-modem error

debug cable-modem error

debug cable-modem error

Use the the debug cable-modem error command in privileged EXEC mode to enable debugging messages for the cable interface driver. To turn the debugging messages off, use the no form of this command.

[no] debug cable-modem error

Syntax Description

This command has no keywords or arguments.

Defaults

No default behavior or values.

Command Modes

Privileged EXEC

Command History

ReleaseModification

11.3 NA This command was first introduced.

Usage Guidelines

This command displays detailed output about the sanity checking of received frame formats, the acquisition of downstream QAM/FEC lock, the receipt or non-receipt of SYNC messages from the CMTS, reception errors, and bandwidth request failures.

Examples

The following example shows sample display output for the debug cable-modem error privileged EXEC command:

uBR924#		debug cable-modem error
*Mar	7	20:16:29: AcquireSync(): Update rate is 100 Hz
*Mar	7	20:16:30: 1st Sync	acquired after	1100 ms.
*Mar	7	20:16:30: Recovery	loop is locked	(7/9)
*Mar	7	20:16:30: 2nd Sync	acquired after	100 ms.
*Mar	7	20:16:30: Recovery	loop is locked	(10/15)

Troubleshooting Tips for the Cisco uBR924 Cable Access Router 63