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Cisco VISM Installation and Configuration Guide
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
Chapter5 CLI Commands
cnfclksrc
•If the clock source is the PXM’s internal crystal and no other clock sour ce h as be en sp ec ified, d o
not configure the clock source. The crystal is the automatic default.
•If you want to change the clocking source from external to the PXM card’s internal crystal, specify
the configuration as:
cnfclksrc 7.X n
Note Type 7 for the slot number regardless of the PXM card’s location in the chassis. The X
argument value is the either 35 or the OC3 port number, depending upon which is the
currently specified source. The null port number argument value cancels the previous
configuration and returns the clocking source to the default internal crystal.
•If the clock source is from a line on a VISM card, specif y t he co nfigur ation a s:
cnfclksrc Y.1 p
Note The Y argument value is the actual slot number of the VISM card. Always type 1 for port
argument value, which represents the line number in this configuration.
Refer to the Cisco MGX 8850 Installation and Configuration Guide and the Cisco MGX 8000 Series
Switch Command Reference for information on the following PXM card clocking commands:
•cnfcbclk
•cnfextclk
•cnfsrmclksrc
•dspcbclk
•dspclkinfo
•dspclksrc
•dspcurclk
Examples The following example shows that the clock source is configured for slot number 8, port number 35, and
is secondary:
cnfclksrc 8.35 s
Related Commands Command Description
cnfln Configures line characteristics for a specified line.