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    Related Documentation


    Display the Packet Forwarding Engine Current Clock Source


    To determine the current clock source of the Packet Forwarding Engine. The Packet Forwarding Engine current clock source is the master PCG.


    To display the PCG master from the Packet Forwarding Engine clock source output, use the following command:

    user@host> show chassis clocks

    Sample Output

    user@host> show chassis clocks
    PFE clock status:
      Current source            PCG 0
      Measured frequency        125.03 MHz
    Reference clock status:
      Current source            Primary
      Primary source            Internal
      Secondary source          Internal
      Tertiary source           Internal
      Rollover algorithm        Holdover
      PLL mode                  Free-running
      PLL errors                0
      Sync message current      0x00
      Sync message normal       0x00
      Sync message override     0x00 


    The command output shows that the PCG in slot 0 is the primary clock source or master.


    Related Documentation


    Published: 2012-08-20