Configure PHY Timestamping
You can configure timestamping either at the physical layer or at the nonphysical layer on the 10-Gigabit Ethernet and 100-Gigabit Ethernet ports. The PHY timestamping updates the correction field of the packet. PHY timestamping is supported in ordinary clock and boundary clock modes.
PHY timestamping is either enabled or disabled on all the PHYs together. You cannot selectively enable or disable PHY timestamping on a particular interface.
To enable PHY timestamping, configure clock-mode (ordinary clock or
boundary clock) along with the phy-timestamping CLI statement at the
[edit protocols ptp] hierarchy.
[edit protocols ptp] user@host# set clock-mode (boundary | ordinary)
[edit protocols ptp] user@host# set phy-timestamping
On Junos Evo platforms, PHY timestamping is enabled by
default and the phy-timestamping configuration option is
unavailable.
Platform-Specific PHY Timestamping Behavior
Use Feature Explorer to confirm platform and release support for specific features.
Use the following table to review platform-specific behaviors for your platform:
|
Platform |
Difference |
|---|---|
|
ACX Series |
The PHYs on ACX do not support PHY timestamping functionality for PTP-over-MPLS. You should not enable PHY timestamping if PTP is transported over MPLS. |
Change History Table
Feature support is determined by the platform and release you are using. Use Feature Explorer to determine if a feature is supported on your platform.
e2e-transparent CLI command at the
[edit protocols ptp] hierarchy level. Prior to Junos OS
Release 17.1, to configure transparent clock, include the
transparent-clock CLI command at the [edit
protocols ptp] hierarchy level.