Enabling Transparent Clock Mode for PTP

The PTP-TC configuration is disabled by default on all interfaces. The PTP-TC can be enabled globally. All the ports are configured for timestamping after the transparent clock is configured globally. Enable each port individually if you want to enable or disable timestamping on an individual port or range of ports.

The following task shows how PTP can be enabled on individual ports or multiple ports.

  1. Enter global configuration mode.
    device# configure terminal
  2. Specify the the individual port to be enabled in PTP.
    device(config)# interface ethernet 1/1/5
  3. Enable the transparent clock mode for PTP using the following command.
    device(config-if-e25000-1/1/5)# ptp-clock transparent pkt-type ethernet option e2e step-type onestep
    PTP Feature Enabled on port 1/1/5
The following example enables the transparent clock mode for PTP on a range of ports.
device(config-if-e25000-1/1/5)# interface ethernet 1/1/10 to 1/1/15
device(config-mif-1/1/10-1/1/15)# ptp-clock transparent pkt-type ethernet option e2e step-type onestep
PTP Feature Enabled on port 1/1/10
PTP Feature Enabled on port 1/1/11
PTP Feature Enabled on port 1/1/12
PTP Feature Enabled on port 1/1/13
PTP Feature Enabled on port 1/1/14
PTP Feature Enabled on port 1/1/15
The following example enables the PTP transparent clock mode globally.
device# configure terminal
device(config)# ptp-clock transparent pkt-type ethernet option e2e step-type onestep
PTP Feature Enabled
device(config)# show ptp-clock
Clock		  : Transparent
Clock ID 	     : 00e0.5200.0100
PTP Enabled Ports    : e 1/1/1 to 1/1/48 e 1/2/1 e 1/2/2 e 1/2/3 e 1/2/4
                       e 1/2/5 e 1/2/6 e 1/2/7 e 1/2/8
Packet Type 	  : Ethernet
Option		 : End-to-End
Primary Domain       : 0
Step Type	     : One-step