Cisco SR2016T-NA Reference Manual page 34

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cable clock clear-counters

To reset the counters that are displayed with the show controllers clock-reference command, use the

cable clock clear-counters command in privileged EXEC mode.

Syntax Description

This command has no keywords or arguments.

No default behavior or values

Command Modes

Privileged EXEC

Command History

Usage Guidelines

This command resets any counters that were displayed from the last time the

This command is not supported on the SC train.

This command supports the Cisco CMTS clock feature set, which provides a synchronized clock for

improved Voice-over-IP (VoIP) operations. The clock feature set requires one of the following

configurations:

Only these cable interface cards support the external clock card reference from a clock card to distribute

that signal to CMs or set-top boxes (STBs) attached to the specific network segments. You can use other

cable interface cards, such as the Cisco uBR-MC16C, with the clock card, but these other cable

interfaces will not synchronize their downstream SYNC messages with the external clock source.

Cisco Broadband Cable Command Reference Guide

cable clock clear-counters

Modification

This command was introduced.

This command was supported on the EC train for the Cisco uBR7246VXR

This command was supported for the TCC+ card on Cisco uBR10012

Support for this command was added to the Release 12.2 BC train for the

Cisco uBR7246VXR and Cisco uBR10012 routers.

command was used.

A Cisco uBR10012 router with one or two TCC+ cards that are connected to an external national

clock source.

A Cisco uBR7246 VXR router using a Cisco uBR-MC16S, Cisco uBR-MC16E, Cisco uBR-

MC28C, or Cisco uBR-MC28C-BNC cable interface line card. The router must also be equipped

with a Cisco cable clock card and be running Cisco IOS Release 12.1(1a)T1, Cisco IOS

Release 12.1(2)EC1, or a later release. The Cisco cable clock card should be connected to an

external national clock source.

Cisco CMTS Configuration Commands

show controllers clock-

Broadband cable