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Cisco uBR7200 Series Universal Broadband Router Software Configuration Guide
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Chapter4 Troubleshooting the System
Managing the Cisco uBR7246 VXR Clock Card
The following sample output from theshow cable clock command shows both external sources are
available and the clock card is providing the clock reference:
Router# show cable clock
Clockcard primary input is present
Clockcard secondary input is present
Cable clock reference is clockcard primary input
Cable3/0 Timestamp clock reference is from Clockcard
Cable4/0 Timestamp clock reference is from Clockcard
Show Clock Hardware Information and Register ValuesTodisplay hardware information, register values, and current counters for the cable clock card, use the
show controllers clock-reference privileged EXEC command.
show controllers clock-reference
Tips To reset the counters that are displayed with theshow controllers clock-reference
command, use the Clear Clock Counters command.
The following is sample output from theshow controllers clock-reference command:
Router# show controllers clock-reference
National clock card with T1 controller
Control register :0x4
Status register :0x54
LIU Config Register 0:0x0
LIU Config Register 1:0x0
1 events reported in 266636 seconds
Primary active :1, LOS :0
Secondary active :0, LOS :1
Holdovers :0, HW faults :0
Show Clock Diagnostic InformationTodisplay diagnostic information for the cable modem cards, use the show diag command in privileged
EXEC mode.
Tips Use the show diag command to display diagnostic information about the port adapters
installedin the router. This command also displays information about the cable clock card,
if installed.