SMPTE timing profile

SMPTE timing profile ensures that different elements of a multimedia production

(such as video, audio, and metadata) are tightly synchronized, which is critical

for professional broadcast, production, and live events where timing precision is essential.

 is a transport technology for transporting SDI over IP

(  in that sense is similar to RoCE in which RDMA Infiniband calls are being made over Ethernet rather than Infiniband )

In ST2110 the components of SDI i.e. audio, video and data or "essences" are being transported as separate streams with

SMPTE-2059 or PTP tighing it all together