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Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
OL-2239-05
Chapter 1 Overview of Cisco uBR7200 Series Software
Supported Software Features for the Cisco uBR7200 Series
Table 10 describes the fields displayed by the show controllers cable downstream command.
The following example illustrates the information from the show controllers cable command on a Cisco
uBR7246VXR router on which Cisco IOS Release 12.3(9a)BC is installed.
Router# show controllers cable x/y
For additional information about this and other commands, refer to the following document on
Cisco.com:
• Cisco IOS CMTS Cable Command Reference Guide
http://www.cisco.com/en/US/docs/ios/cable/command/reference/cbl_book.html
show tech-support
Cisco IOS Release 12.3(9a)BC shortens the output of the show tech-support command on the Cisco
uBR10012 and the Cisco uBR7246VXR routers. This change allows users with large numbers of online
cable modems to collect information without consuming the console session for a long period of time.
To display general information about the Cisco CMTS router when reporting a problem to Cisco
technical support, use the show tech-support command in privileged EXEC mode.
show tech-support [page] [password] [cef | ipc | ipmulticast | isis | mpls | ospf | rsvp]
Note The show tech-support command automatically displays the output of a number of different show
commands. The exact output depends on the platform, configuration, and type of protocols being used.
Note The show tech-support includes most of the information shown in the show cable tech-support
command.
Ta b l e 10 show controllers cable downstream Field Descriptions
Field Description
Cable Slot number/port number indicating the location of the Cisco cable
interface line card.
Downstream is up Indicates that the RF downstream interface is enabled.
Frequency Transmission frequency of the RF downstream. (This information
may not match the current transmission frequency, which is
external on CMTS platforms that use an external upconverter.)
Channel Width Indicates the width of the RF downstream channel.
QAM Indicates the modulation scheme.
Symbol Rate Indicates the transmission rate (in number of symbols per second).
FEC ITU-T Indicates the Motion Picture Experts Group (MPEG) framing
standard.
R/S Interleave I/J Indicates Reed Solomon framing based on ITU S.83-B.
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