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System Management

  • Support for PTP SMPTE media profile (QFX5120-48T)—Starting in Junos OS Release 21.2R1, you can enable the Society of Motion Picture and Television Engineers (SMPTE) profile to support video applications to enable capture, video edit, and playback to be used in professional broadcast environments. The standard allows multiple video sources to stay in synchronization across various equipment by enabling time and frequency synchronization to all devices.

    [See Understanding the PTP Media Profiles and Configuring the PTP Media Profiles.]

  • Support for PTP boundary clock and enterprise profile (QFX5120-48T)—Starting in Junos OS Release 21.2R1, you can enable the boundary clock and enterprise profiles, which are based on Precision Time Protocol (PTP) version 2 (PTPv2). The PTP enterprise profile enables the enterprise and financial markets to add a timestamp to the operations of different systems, and to handle a range of latencies and delays. The boundary clock has multiple network connections and can act as a source (primary) and a destination (client) for synchronization messages. It synchronizes itself to a best primary clock through a client port and supports synchronization of remote clock clients to it on primary ports.

    [See Understanding the Precision Time Protocol Enterprise Profile and IEEE 1588v2 PTP Boundary Clock Overview.]