Design Elements for Core IP Media Infrastructures

On Decomposition and Deployment of Virtualized Media Services

“…A broadcast studio facility needs to interconnect multiple media devices. Interconnection based on SDI switching has low-latency is non-blocking, lossless, and supports point to multipoint [12]. These properties must also be supported when transitioning to the IP-routed infrastructure.…”

“…In summary, by building the studio network along the lines of datacenter networks (e.g. leaf-spine), the speed of the switching fabric can be scaled massively such that multiple uncompressed 4K video streams could also be transported across the studio network built entirely upon IP [12]. Due to the growing popularity of IP for media transport, the Society of Motion Picture and Television Engineers (SMPTE) has released a suite of standards ST 2110 that describe how to transport uncompressed media streams over an IP network [14]- [17].…”

“…It uses the random contraction algorithm RandContr to get a k-cut of an un-directed graph G [27]. The quality of the generated k-cuts, in terms of the sum of the weights of the crossing edges, can be boosted by repeating RandContr N runs times (l. [4][5][6][7][8][9][10][11][12][13] and n bst best k-cuts are generated by running RandContr N runs times. By passing n bst = 10, the ten best cuts are returned that are sequentially checked for PC in Alg.…”

“…5. One-by-one PC is attempted on each k-cut (F cut , L cut ) ∈ F cuts , L cuts in the order of increasing weight until all the VMF clusters of the selected cut ((F cut , L cut )) are placed and chained successfully (l. [6][7][8][9][10][11][12]. If a component C could not be deployed for any cut (F cut , L cut ) ∈ F cuts , L cuts , the procedure (l.…”