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Chapter 5
Cisco CMTS Debugging Commands
19:46:32: Freq Error = 0, Freq offset is 0
19:46:32: Ranging has been successful for SID 3 on Interface Cable6/0/U0
19:46:34: Ranging Modem with Sid 5 on i/f : Cable6/0/U0
To monitor a specific CM when it comes online, use the
Tip
mac-protocol, and
Table 5-4
Field
SID value is....
CM mac address....
Timing offset is....
Power value is FE0, or 0 dB
Freq Error = ....
Freq offset is ....
Related Commands
Command
debug cable interface
debug cable mac-address
debug cable mac-scheduler
debug cable registration
show controllers cable
OL-1581-08
debug cable registration
debug cable mac-protocol Command Field Descriptions
Description
Reports the service ID of the modem. The range is from 1 through
8191. The information on this line should agree with the first line of
the return (that is, Ranging Modem with Sid...).
The MAC address of the specified CM.
The time by which to offset the frame transmission upstream so that
the frame arrives at the expected minislot time at the CMTS.
The raw value derived from the Broadcom chip. Alternately, the dB
value specifies the relative change in the transmission power level
that the CM needs to make so that transmissions arrive at the CMTS
at the desired power level.
The raw value derived from the Broadcom chip.
Specifies the relative change in the transmission frequency that the
CM will make to match the CMTS.
Description
Enables debugging output for a specific cable interface.
Displays debugging output for the CMs that match the specified
address or range of addresses.
Displays debugging output for the MAC layer scheduler and
admission control activities.
Displays debugging output for the registration messages sent when a
CM comes online with the CMTS.
Displays interface controller information for the specified slot.
debug cable
mac-address,
commands.
Cisco Broadband Cable Command Reference Guide
debug cable mac-protocol
debug cable
5-51
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