PTP transparent clock

Precision Time Protocol (PTP) synchronizes clocks throughout a packet-switched network. With a transparent clock, the PTP packets are updated with residence time as the packets pass through the switch. There is no primary/client designation. With an end-to-end transparent clock, only the residence time is included. The residence time can be sent in a one-step process, which means that timestamps are sent in one packet. In a two-step process, estimated timestamps are sent in one packet, and additional packets contain updated timestamps. In addition, user UDP over IPv4 and IPv6, and unicast and multicast transparent clocks are supported. You can configure the transparent clock at the [edit protocols ptp] hierarchy level.