Cisco Cisco StadiumVision Director Guida All'Installazione Rapida

Improved content synchronization was first introduced in Cisco StadiumVision Director

Release 3.2 on the DMP 4310G through the use of the Network Time Protocol (NTP).

Cisco StadiumVision Director Release 4.0 and later supports enhanced content

synchronization methods for the SV-4K and DMP-2K only, with close synchronization

of playlist item transition using the Precision Time Protocol (PTP).

Zone-Based Video Wall Synchronization (SV-4K and DMP-2K

only)

Zone-based video wall synchronization is an alternative form of synchronization

available for SV-4K and DMP-2K devices participating in a video wall.

The primary benefit of this form of synchronization is that if any SV-4K and DMP-2K

device that is not the leader in the video wall reboots, it will "catch up" to play whatever

content item that the rest of the video wall is currently playing. This form of

synchronization is recommended for dedicated video walls that are running video

content longer than 15 minutes.

If an SV-4K and DMP-2K device reboots in a video wall that is not using zone-based

video wall synchronization (using normal DMP-to-DMP synchronization), the tradeoff is

that the rebooting device synchronizes with the rest of the video wall at the next content

item in the playlist, or at replay of a single-item playlist.

Summary of Video Wall Synchronization Methods for the SV-4K

and DMP-2K

Table 27

provides a comparison of the configuration guidelines and behavior for device

reboot in an SV-4K and DMP-2K video wall for the two content synchronization

methods.

NOTE: Both content synchronization methods use single device

cabling per TV display. See

Constant Bit Rate (CBR) is recommended for best performance.

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