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Ethernet AVB: The next step in broadcast infrastructures Jan Eveleens, CEO jan.eveleens@axon

Professional Networked Media. Ethernet AVB: The next step in broadcast infrastructures Jan Eveleens, CEO jan.eveleens@axon.tv www.axon.tv. Live Production as we know it. Key challenges in current infrastructures. ( lack of) flexibility Topology ( central router )

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Ethernet AVB: The next step in broadcast infrastructures Jan Eveleens, CEO jan.eveleens@axon

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  1. Professional Networked Media Ethernet AVB: The next step in broadcast infrastructures Jan Eveleens, CEO jan.eveleens@axon.tv www.axon.tv

  2. Live Production as we knowit

  3. Keychallenges in currentinfrastructures • (lack of) flexibility • Topology (centralrouter) • Supportingnewstandards • Cabling • Specificforourindustry • Dedicated • onecable per signal (type) • Uni-directional • A LOT……

  4. A typicalexample • Green-fieldinstallation (UK): • 157 x Analog audio distribution amplifiers • 78 x Digital audio distribution amplifiers • 410 x (!) Analog CVBS distribution amplifiers • Mostlyforreference distribution • 1018 x (!) Digital video (SDI) distribution amplifiers • Total requiredrackspace: • 93 x 4RU frames = 372 RU  approx. 10 x full-height 19” Racks !!! • Many, many kilometers of coaxcable, thousands of BNC connectors • And thisjustforreference and signal distribution……..

  5. Live Productioninfrastructures: the next wave ! today Ethernet 3 Gbps HD-SDI SDI Composite

  6. Whygoing Ethernet in Live Production (1) ? Mbps • Required link speed availablenow • and affordable: A 10Gbps ethernet port is alreadycheaperthan a 3Gbps SDI I/O • Sheersize of ethernet industry drives innovation and costerosion • Ethernet switch market > $20B (10Gbps switch marketalready > $10B) • Comparethis to: total SDI routermarket: ~ $300M…… or eventotalbroadcastequipmentmarket: ~$16B . • Anotherinterestingdatapoint: revenu of Cisco (2012): $46B….

  7. Strong Ethernet roadmapgoingforward Ethernet (backbone) link speed expected to hit 1 Tbps (!) in the next decade !!

  8. Whygoing Ethernet in Live Production (2) ? • Allowsdistributedarchitectures • Full bi-directional/duplex connections • Multiple (different) signalsmultiplexed/transportedononecable • Video, audio, (meta) data, control, monitoring, etc • Also supports standard ‘legacy’ traffice (files, emails, etc) • Drasticallyreducecabling • Save costs (cables, connectors, install), space and weight (!)

  9. SDI A central router Central reference with distribution Already quite some Ethernet equipment Many cables, often in big parallel bundles

  10. AVB

  11. AVB Central reference With no additional distribution A distributed router

  12. How to make Ethernet work for real-time applications Audio Video Bridging (AVB) Time Synchronization Traffic Shaping Bandwidth Reservation Configuration

  13. What are the key AVB standards ? • The key standards for AVB are: • IEEE 802.1BA: Audio Video Bridging Systems • IEEE 802.1AS: Timing and Synchronization for Time-Sensitive Applications (gPTP), • IEEE 802.1Qat: Stream Reservation Protocol (SRP), • IEEE 802.1Qav:Forwarding and Queuing for Time-Sensitive Streams (FQTSS) • IEEE 1722: AVB payload transport layer protocol. • IEEE 1722.1: AVB discovery, enumeration & control protocol

  14. Typicalcharacteristics of an AVB network • All nodes are fullysynchronisedto a (verystable) networkclock • Allowsvery accurate recovery of media clocks • SDI canberecoveredwithinbroadcastqualityjitterspecifications • Audio clockcanberecoveredmaintainingphaserelation • Low latency: typically2msoverall networkdelay • Allowsfor complex/distributednetworks (multiple hops) • The networkself-managesbandwidthreservationsuchthat links willnevergetovercommitted and/or packets are dropped • Usesmulti-cast, soonlyonecopy of eachactivesourceonanygiven link orbackbone

  15. Whatcanbetransportedwith AVB ? The followingelements are part of IEEE 1722 transport protocol: • PCM audio in various sample rates • SDI video (withembedded video and audio) • Raw, uncompressed video • 1080p video at ~2Gbps (!) • Time-sensitive data (eg ancillarilyor metadata) • IEEE 1394 formats • Sothisalsoenables transport of compressed (MPEG-TS) streams • RTP formats

  16. A very important element:interoperability Ensuringthat AVB nodes talk to AVB nodes AVnu Alliance

  17. Who/what is AVnu Alliance • The AVnu Alliance is an industry forum dedicated to the advancement of professional-quality audio video by promoting the adoption of Audio Video Bridging (AVB). • The organization creates compliance test procedures and certification processes that ensure interoperabilityof networked AVB devices. • 4 key markets: • Professional Audio • Professional Video • Consumer • Automotive

  18. Founding Members of the AVnu Alliance

  19. AVnu Alliance members

  20. Howreal is Ethernet AVB ? • 100Mbps, 1Gbps,10Gbps and 40Gbps Ethernet AVB switches are shipping • Several professional AVB audio productson the marketfromseveral vendors: • Audio processors, audio consoles, speakers, etc • Intercom systems • First broadcastquality AVB video products have startedshipping • AVnu certificationprocess is up and running

  21. Summarising the keybenefits of Ethernet - AVB Basedonexisting and openstandardsfrom a veryreputable and succesfulstandards body (IEEE) Provides oneframeworkfortime-synchronised, real-time transport of video, audio and data Proven technologythat is availablenow: largeprofessional AVB audio systemsbeingdeployed in the field Interoperability is going to be taken care of: AVnu alliance Plug-andplay: noconflictsorfiddlingwith IP addresses, etc Fool-proof:the network is self-managing, it does notrelyon the skills of networkengineersor a (proprietery) software management layer. Perfect co-existence(and reservedbandwidthfor) withstandard IP traffic (eg. control, monitoring, etc)

  22. Questions ? More info can be found at: • http://en.wikipedia.org/wiki/Audio_Video_Bridging www.avnu.org www.axon.tv

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