PTP

Precision Time Protocol (PTP) is a timing-over-packet protocol defined in the IEEE 1588v2 standard 1588 2008. PTP provides the capability to synchronize network elements to a Stratum-1 clock or primary reference clock (PRC) traceable source over a network that may or may not be PTP-aware.

The ptp command specifies the PTP source as an option for recovered time. The specific PTP clock is identified by clock-id (from 1 to 16 for PTP clocks that use IPv4 or IPv6 encapsulation, and csm for PTP clocks that use Ethernet encapsulation) and has an assigned priority-value (from 1 to 16).

CLI Syntax:

config>system>time
    ptp
        clock clock-id time-ref-priority priority-value
        clock csm time-ref-priority priority-value

Example:

config>system>time# ptp
config>system>time>ptp# clock 1 time-ref-priority 1