Cisco SR2016T-NA Reference Manual page 926

debug cable registration
The following example shows typical output when a CM attempts to come online without downloading
a DOCSIS configuration file from a TFTP server through the Cisco CMTS cable interface, when the
cable tftp-enforce
Router# debug cable interface c3/0 verbose
Router# debug cable registration
CMTS registration debugging is on
May 14 22:33:21.474: Registration request from 5555.7366.12fb, SID 2 on Cable3/0/U0
May 14 22:33:21.474: Cable Modem sent Registration Request without attempting TFTP
SLOT 3/0: May 14 22:33:21.474: %UBR7200-4-REGISTRATION_BEFORE_TFTP:
<133>CMTS[Cisco]:<????????> Registration request unexpected: Cable Modem did not attempt
TFTP. CM Mac Addr <5555.7366.12fb>
Registration failed for Cable Modem 5555.7366.12fb on interface Cable3/0/U0:
May 14 22:33:21.474: REG-RSP Status : failure (2)
May 14 22:33:21.474: Registration Response:
May 14 22:33:21.474: 0x0000: C2 00 00 1B 00 00 00 50 73 4E B4 19 00 05 00 E0
May 14 22:33:21.474: 0x0010: 56 AC 00 09 00 00 03 01 07 00 00 02 02
May 14 22:33:21.474: Registration Response Transmitted
To monitor a specific CM when it comes online, use the
Tip
mac-protocol, and
Related Commands Command
debug cable interface
debug cable
mac-protocol
debug cable
mac-scheduler
show controllers cable
Cisco Broadband Cable Command Reference Guide
5-66
command has been used.
CoS/Sflow/Cfr/PHS failed in REG-REQ
debug cable registration
Description
Enables debugging output for a specific cable interface.
Displays debugging output for the MAC layer protocol.
Displays debugging output for the MAC layer scheduler and admission
control activities.
Displays interface controller information for the specified slot.
Chapter 5
debug cable mac-address,
commands.
Cisco CMTS Debugging Commands
debug cable
OL-1581-08