Precision Time Protocol (PTP)
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Support for enterprise and media profiles with PTP ordinary clocks and boundary clocks (QFX5130-48CM)—The enterprise and media profiles functionality with ordinary and boundary clocks is introduced for QFX5130-48CM devices, which includes support for:
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Enterprise profile using PTP ordinary clock and PTP boundary clock applications.
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Enterprise profile using PTP over IPv4 multicast transport.
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SMPTE, AES67, and AES67+SMPTE profiles.
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Media profiles using PTP ordinary clock and PTP boundary clock applications.
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Media profiles using PTP over IPv4 multicast transport.
The enterprise profile is tailored for enterprise networks, enabling precise time synchronization using both multicast and unicast communication. It supports scalable, dynamic clock discovery and selection, making it ideal for large, modern IT infrastructures.
The media profile is designed specifically for media and broadcast networks, enabling precise synchronization of audio, video, and data streams. It ensures low-latency, phase-aligned timing across devices to support seamless media production and playout.
[See PTP Enterprise Profile and PTP Media Profile.]
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Support for PTP over IRB (QFX5130-48CM)— Precision Time Protocol over Integrated Routing and Bridging (PTP over IRB) enables multiple PTP streams to share a common local IP address while forwarding packets through Layer 2 switching. This setup is particularly useful for broadcast media applications, where synchronization accuracy is crucial.
PTP over IRB ensures precise timing for applications like SMPTE and AES67 and reduces the need for multiple physical interfaces. It supports multicast PTP over IP, allowing seamless integration into existing network infrastructures.