4.31 PTP External Clock Configuration

The PTP External Clock Configuration page allows the user to configure and inspect the current PTP clock settings.

Figure 4-120. PTP External Clock Configuration

The PTP External Clock Mode section has the following parameters:

  • One_PPS_Mode: This Selection box will allow you to select the One_pps_mode configuration. The following are the possible values:
    • Output: Enable the 1 pps clock output
    • Disable: Disables the 1 pps clock output
  • External Enable: To configure the external clock output, select a value from the drop-down list. The following values are possible:
    • True : Enables the external clock output
    • False: Disables the external clock output
  • Adjust Method: This Selection box will allow you to configure the Frequency adjustment configuration.
    • LTC: Select Local Time Counter (LTC) frequency control
    • Single: Select SyncE DPLL frequency control, if allowed by SyncE
    • Independent: Select an oscillator independent of SyncE for frequency control, if supported by the HW
    • Common: Select second DPLL for PTP, Both DPLL have the same (SyncE recovered) clock.
    • Auto: AUTO Select clock control, based on PTP profile and available HW resources.
  • Clock Frequency: This will allow to set the Clock Frequency. The possible range of values are 1 - 25000000 (1 - 25MHz)

The PTP Clock Configuration section has the following parameters:

  • Delete: Check this box and click on 'Save' to delete the clock instance.
  • Clock Instance: Indicates the instance number of a particular Clock Instance [0..3]. Click on the Clock Instance number to edit the Clock details.
  • HW Domain: Indicates the HW clock domain used by the clock.
  • VID: VLAN Identifier used for tagging the VLAN packets.
  • Device Type: Indicates the Type of the Clock Instance. There are 5 Device Types.
    • Ord-Bound - clock's Device Type is Ordinary-Boundary Clock.
    • P2p Transp - clock's Device Type is Peer to Peer Transparent Clock.
    • E2e Transp - clock's Device Type is End to End Transparent Clock.
    • Master Only - clock's Device Type is Master Only.
    • Slave Only - clock's Device Type is Slave Only.
    • AED GM - clock's Device Type is Grandmaster only (AED profile specific).
  • Profile: Indicates the profile used by the clock.