Show Cable Modem - Cisco uBR10012 Software Configuration Manual

Show cable modem

Show cable modem
To display information for the registered and unregistered CMs, use the show cable modem command
in privileged EXEC mode.
show cable modem [ip-address | interface | mac-address] [options]
Some command options differ between the Cisco uBR10012 router (Cisco IOS Release 12.2 XF) and the
Cisco uBR7200 series routers (Cisco IOS 12.1 EC).
Commencing with Cisco IOS Release 12.0(7)XR and 12.1(1a)T1, the output of this command was
Note
enhanced to show that the Cisco CMTS has detected an unstable return path for a particular CM and
has compensated with a power adjustment.
•
•
Syntax Description ip-address
interface
mac-address
Available options when displaying information for a cable interface or for a single CM
access-group
connectivity
counters
errors
flap
mac
maintenance
offline
phy
registered
remote-query
summary
unregistered
Cisco uBR10012 Universal Broadband Router Software Configuration Guide
6-4
An asterisk (*) appears in the
has been made.
An exclamation point (!) appears when the modem has reached its maximum power transmit level
and cannot increase its power level any further.
Identifies the IP address of a specific modem to be displayed.
Displays all CMs on a specific CMTS cable interface.
Identifies the MAC address of a specific CM to be displayed.
Displays access group.
Displays connectivity content.
Displays cable counters.
Displays error details for one or all CMs.
Displays flap content.
Displays the DOCSIS MAC version and capabilities.
Displays station maintenance error statistics.
Displays CMs that are offline.
Displays the phy layer content.
Displays information for CMs that have registered with the CMTS.
Displays the signal-noise ratio (SNR) and power statistics that the CMTS has
acquired from polling the CMs. NOTE - In Cisco 12.1 CX and above, the phy
option should be used instead of the remote-query option.
Displays the total number, number of active, and number of registered modems
per interface. This option can be used with total and upstream options to
display details for specific line cards and ports.
Displays information for CMs that have not registered with the CMTS.
(power adjustment) field for a modem when a power adjustment
p-adj
Chapter 6 Troubleshooting the System
OL-1520-05