Installation guide
5-17
Cisco uBR7100 Series Universal Broadband Router Software Configuration Guide
OL-2238-03
Chapter 5 Troubleshooting the System
Understanding Show Command Responses
Understanding Show Command Responses
General show Commands
Key show commands include:
• show cable modem
• show interface cable
• show cable qos profile
• show cable modulation profile
• show cable spectrum-group
Additional or changed show commands include the following:
• The show cable qos command shows cable qos-profile n command, where the optional argument n
can be used to display a specific profile.
• The show int cx/y sid command displays more complete Service ID (SID) status information.
• The show cable modem command displays a list of options for a single modem to be specified by
entering either the RF CPE device IP address or MAC address:
–
SNR information for each CM on each interface
–
summary display of the total number of modems connected for each upstream channel
–
total number of registered and unregistered modems for the specified interface or upstream
–
total number of offline modems for the specified interface or upstream and status for each
offline modem before it went offline
• The show cable burst-profile command has been removed. Its functions have been incorporated
into the show cable modulation-profile command, which now includes an added option number
that displays the modulation profile number.
• The show cable flap-list and show cable modem commands indicate when the Cisco uBR7100
series CMTS has detected an unstable return path for a particular modem and has compensated with
a power adjustment. An asterisk (*) appears in the power adjustment field for a modem when a
power adjustment 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.
• The show controller upstream command is enhanced to display the following information on cable
interfaces:
–
Upstream channel utilization in minislots
–
Contention slots
–
Initial ranging slots
–
Minislots lost due to the MAP interrupt being too late
You can also limit your search for modem status to specific cable interfaces.