Cisco Broadband Cable Command Reference Guide

Chapter 2 Cisco Cable Modem Termination System Commands
show interface cable signal-quality
Syntax Description
Command Modes Privileged EXEC
Command History
OL-1581-05
show interface cable signal-quality
To display information about the signal quality of a downstream port on a cable interface line card in a
Cisco CMTS, use the show interface cable signal-quality command in privileged EXEC mode.
show interface cable {slot/port | slot/subslot/port} signal-quality [n]
slot/port Identifies the cable interface and downstream port on the Cisco uBR7100 series
and Cisco uBR7200 series routers.
On the Cisco uBR7100 series router, the only valid value is 1/0. On the
Cisco uBR7200 series router, slot can range from 3 to 6, and port can be 0 or 1,
depending on the cable interface.
slot/subslot/port Identifies the cable interface on the Cisco uBR10012 router. The following are
the valid values:
slot = 5 to 8
subslot = 0 or 1
port = 0 to 4 (depending on the cable interface)
n (Optional) Identifies a particular upstream on the selected interface.
Release Modification
11.3 XA This command was introduced.
Examples The following is sample output from the show interface cable signal-quality command:
CMTS01# show interface cable 6/0 signal-quality
Cable6/0: Upstream 0 is up includes contention intervals: TRUE
Table 2-42 describes the fields shown in the show interface cable signal-quality display.
Table 2-42 show interface cable signal-quality Field Descriptions
Field Description
Cable Interface name.
Upstream is up includes
contention intervals
States whether this statement is true.
Tip In Cisco IOS Release 12.1(12)EC, 12.2(8)BC1, and later releases, you can add a timestamp to show
commands using the exec prompt timestamp command in line configuration mode.
Cisco Broadband Cable Command Reference Guide
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