Off-the-shelf IP Switches in the Hybrid IP/SDI Broadcast ... 2015 20… · IP Signal Routing:...
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Off-the-shelf IP Switches in the Hybrid IP/SDI Broadcast Facility Tim Claman CTO, Quantel & Snell
Transcript of Off-the-shelf IP Switches in the Hybrid IP/SDI Broadcast ... 2015 20… · IP Signal Routing:...
Off-the-shelf IP Switches in the
Hybrid IP/SDI Broadcast Facility
Tim Claman
CTO, Quantel & Snell
IP Signal Routing: Potential Benefits
• Increased Operational Flexibility
– Format agnostic, adaptable infrastructure can be readily reconfigured
– Integration with file-based, cloud-based, and IP distribution infrastructure
• Lower Cost
– Common Off The Shelf (COTS) hardware can provide cost economies of scale
– Extensive ecosystem of tools, developers, talent
• Faster Innovation
– Driven by massive IT Industry R&D investment (~30X broadcast infrastructure)
IP Signal Routing: Questions
1. Will it be cost effective?
– Will broadcast-specific IP switches be necessary?
2. Will it be practical?
– Can it provide functional parity with SDI?
– Can it be made interoperable?
– Can it be made transparent to broadcast operations?
3. When will it be feasible?
– What will the transition to IP look like?
SDI Router
• Router defined by physical ports
– One signal per port
– Ports are statically directional
– Router cost scales with ports
• Router is central point of control
• Router is aware of video and audio payload
– Router can perform signal processing
– All sources are synchronized in the core
– Clean switching throughout
IP Router
• Router defined by bandwidth
– Multiple signals per port
– Ports are bi-directional
– Router cost scales with bandwidth
• Router control is distributed
• Router is unaware of video and audio payload
– Signal processing is performed at the edge
– Synchronization is recovered at the edge
– Clean switching is performed at the edge when needed
Costs for traditional SDI routing Units
SDI 96-port router with 3G, HD-SDI ports 28,000 USD
Total signal bandwidth = 96 ports * 3Gbps 288 Gbps
Cost per Gbps $97 USD/Gbps
Total cost per signal $292 USD
Costs for IP Routing Solution Units
IP switch (48 ports + 10G SFPS) 40,000 USD
Total signal bandwidth = 48 ports * 10Gbps 480 Gbps
Ports are bi-directional 960 Gbps
Derate to 75% utilization 720 Gbps
Cost per Gbps $56 USD/Gbps
Routing Costs: IP versus SDI
Compression Comparisons Uncompressed VC-2
AVC-I or
JPEG2K
Bitrate for high quality HD 1.5Gbps 500 Mbps 200Mbps
Number of signals per derated 48-port Cisco
3548 480 1440 3600
Cost of routing fabric per signal (USD) 83 28 11
Cost of edge processing (USD) 0 25 250
Cost of edge device I/O port per signal (USD) 75 25 10
Total cost per signal $158 $78 $271
• Edge devices dominate the IP cost model
• Light compression (VC-2) provides biggest bang for the buck
Routing Costs: Compressed or Uncompressed
CODEC Comparison
h.264/AVC h.264/AVC-I JPEG 2K SMPTE VC-2
Quality Medium High High V High
Cost/Complexity 100 50 50 5
Recode Iterations 4 6-8 6-8 10+
Latency High Lines-Frame Lines-Frame Lines-Frame
Data Rate (HD) 50 Mbps 200 Mbps 200 Mbps 500 Mbps
Licensing Royalties Royalties Royalty Free Royalty Free
Unicast
Multicast
Source-Specific Multicast
• Allows fast routing across distributed routers
• Multi-matrix operation via multicast groups
• Snell Protocol for source and destination interrogation
and clean switching
Multicast group 1
AVC-I
Multicast group 2
VC-2
Multicast group 3
AES
Multicast group 4
Studio
IP Core with Hybrid Edge Devices
Signal Processors
Hybrid SDI/IP
IP Native on COTS HW
Destinations
IP Native
IP Multi-viewer
IP to SDI Converter
IP Decoder
Sources
IP Native
SDI to IP Converter
SDI to IP Encoder
Switcher (SDI/IP)
IP Channel-in-a-box
Standard IP Switch
Broadcast Router ControlOpen Standard, Software, Hardware
Multi-Vendor Multi-Vendor
NAB Proof of Concept
Cisco Nexus 3524 Switch
Snell IP Decoder
Cisco DCM 9901 Encoder
Snell IP Channel-in-a-Box Snell Hybrid SI/IP Processor
Snell Hybrid SDI/IP
ProductionSwitcher
Open Router Control System
Snell IP Stream Processer
Format Converter
Cisco DCM 9901 Decoder
Artel SDI to IP Converter
Snell IP Multi-viewer
SMPTE2022-6 uncompressed
RFC3497 CoP4 uncompressed
RFC4175 uncompressed
RTP VC-2, AVC-I compressed
RFC3190 PCM audio
NAB Proof of Concept
Routing Functionality
Video routing
Audio routing
ASI routing
Data routing – RS232
Multi Matrix support
Multi Level support
Associations
Tie Line support
Traditional router control panels
Video routing
Audio routing
ASI routing
Data routing – as required
Multi Matrix support
Multi Level support
Associations
Tie Line support
Traditional router control panels
Traditional Broadcast Routing IP Broadcast Routing
Future IP Media Production
Live IP feeds
Data center-based media-processing
Virtualized Playout
Studios
Media Asset Management
Exception-based reporting
Studio-to-Studio
Automation & Control
IP/MPLSRouting Core
IP Signal Routing: Answers
1. Will it be cost effective?
– Will broadcast-specific IP switches be necessary?
2. Will it be practical?
– Can it provide functional parity with SDI?
– Can it be made interoperable?
– Can it be made transparent to broadcast operations?
3. When will it be feasible?
– What will the transition to IP look like?
Yes. IP can cost less per stream than SDI.
No.
Yes. IP will provide more flexibility than SDI.
Yes.
Yes.
Yes.
The transition has already begun.
Hybrid SDI/IP first. All-IP second.
