HP 7000 dl Router Series Guide de l'utilisateur télécharger pdf (Page 505)

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SROS Command Line Interface Reference Guide T1 Interface Configuration Command Set

clock source [internal | line | through | through t1 <interface id>]

Use the clock source command to configure the source timing used for the interface. The clock specified

using the clock source command is also the system master clock. Use the no form of this command to

return to the default value.

Syntax Description

internal Configures the unit to provide clocking using the internal oscillator.

line Configures the unit to recover clocking from the primary circuit.

through Configures the unit to recover clocking from the circuit connected to the DSX-1

interface.

through t1 Configures the unit to recover clocking from the circuit connected to the specified

<interface id> T1 interface.

Default Values

By default, the clock source is set to line.

Command Modes

(config-t1 1/1)# T1 or DSX-1 Interface Configuration Mode required.

(config-t1 1/2)#

Functional Notes

When operating on a circuit that is providing timing, setting the clock source to line can avoid errors such

as Clock Slip Seconds (CSS).

Usage Examples

The following example configures the unit to recover clocking from the circuit:

(config)#interface t1 1/1

(config-t1 1/1)#clock source line

1 2 ... 500 501 502 503 504 505 506 507 508 509 510 ... 940 941

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HP 7000 dl Router Series Guide de l'utilisateur Page 505

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