Use Cases for Video DMP-to-DMP Synchronization with PTP
PTP is particularly beneficial for the following use cases in the Cisco StadiumVision
network:
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Using video background for Dynamic Menu Boards (DMBs) that show a PiP of the
live event.
With the DMP 4310 devices, the background is implemented as a SWF, whereas
with the secondary video feature on the SV-4K, the background can be more
visually appealing by using local video content.
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Sponsored moment of exclusivity.
When a team scores a goal, a secondary video using the luma key feature can be
shown onscreen overlaying a full screen video showing the live event.
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Video-based ads.
Ads in region 2 or 3 (or L-wraps) can now be video content. For L-wraps, the luma
key will need to be used so that the live multicast video can be seen.
How to Configure NTP and PTP on the SV-4K Media
Players
By default, both NTP and PTP services are automatically enabled for SV-4K media
players. The SV-4K media players use PTP to achieve optimal synchronization.
However, an NTP source also must be used to provide initial clocking to the SV-4K
devices that are elected PTP masters in the network.
This section includes the following topics:
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Restrictions for PTP on the SV-4K Media Players, Page 35
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Guidelines for NTP and PTP on the SV-4K Media Players, Page 35
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Modifying the PTP and NTP Configuration on the SV-4K Media Players, Page 37
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Verifying PTP Operation for the SV-4K Media Player, Page 39
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