deploying large scale avb tsn networks handout
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Deploying*Large*Scale*AVB/TSN* Networks*:* Handout * - PDF document

Nov 11, 2022 •115 likes •216 views

1 ! ! Deploying*Large*Scale*AVB/TSN* Networks*:* Handout * Jeff+Koftinoff+<jeffk@meyersound.com>+ ( Infocomm(2015((Orlando,(Florida( June(19(2015( ! !

  1. 1 ! ! Deploying*Large*Scale*AVB/TSN* Networks*:* Handout * Jeff+Koftinoff+<jeffk@meyersound.com>+ ( Infocomm(2015(–(Orlando,(Florida( June(19(2015( ! ! AVB/TSN!Standards!.................................................................................................................................!2! gPTP! ............................................................................................................................................................!2! FQTSS!.........................................................................................................................................................!2! SRP!..............................................................................................................................................................!2! AVTP!...........................................................................................................................................................!2! IEEE!Std!1722:2011!Subtypes!...................................................................................................!3! IEEE!P1722:rev!adds:!....................................................................................................................!3! AVDECC!Features!..................................................................................................................................!3! Tiny!Scale!AVB!Networks!.......................................................................................................................!4! Example! .....................................................................................................................................................!4! Small!scale!AVB!networks! ......................................................................................................................!4! Example!1:!Home!use!..........................................................................................................................!4! Example!2:!Music!Studio! ....................................................................................................................!5! Medium!scale!AVB!Networks!...............................................................................................................!5! Example! .....................................................................................................................................................!5! Large!Scale!AVB!Networks!....................................................................................................................!6! Considerations!for!Large!Scale!AVB!Networks!........................................................................!6! Legacy!Traffic!Broadcast!Domain!Limitations!.........................................................................!6! Multicast!Group!Limits!.......................................................................................................................!7! Switch!Backplane!Limits! ....................................................................................................................!7! SRP!Packing!.............................................................................................................................................!7! SRP!Talker!Attributes!are!packable!when:!...........................................................................!7! Management!CPU!Limitations!....................................................................................................!7! Managing!networks!with!AVDECC!.....................................................................................................!8! Features! ................................................................................................................................................!8! Entity!Model!Example!....................................................................................................................!8! Discovery!.............................................................................................................................................!8! Enumeration!......................................................................................................................................!8! ! ! Deploying+Large+Scale+AVB4TSN + + !

  2. 2 ! ! AVB/TSN+Standards+ ! Table&1&–&Existing&AVB/TSN&IEEE&Standards& Acronym+ Standard+ Purpose+ gPTP& IEEE!Std!802.1AS! Time! Synchronization! FQTSS& IEEE!Std!802.1Q:2011! Traffic!Shaping! Clause!34! SRP& IEEE!Std!802.1Q:2011! Stream!Reservation! Clause!35! AVTP& IEEE!Std!1722:2011! Media!Packetization! AVDECC& IEEE!Std!1722.1:2013! Discovery,! Connection,!Control! ! gPTP+ ! •" Based!on!IEEE!Std!1588:2008!(ptpv2)! •" Generalized!Precision!Time!Protocol! •" Provides!+/:!40!ns!clock!accuracy! FQTSS+ ! •" Forwarding!and!Queuing!of!Time!Sensitive!Streams! •" Shapes!traffic!so!the!worst!case!latency!is!bounded!for!an! arbitrary!network!and!with!worst!case!interference!packets! SRP+ ! •" Stream!Reservation!Protocol! •" A!distributed!database!managed!by!the!switches!and!the!end! stations!to!keep!track!of!all!streams!and!bandwidth!reservation!on! all!links!in!a!network! •" Implemented!with!MRP! •" Requires!MVRP!for!managing!VLANs! AVTP+ ! + Deploying+Large+Scale+AVB4TSN+ !

  3. 3 ! ! IEEE+Std+172242011+Subtypes+ ! •" Audio!Video!Transport!Protocol!(AVTP)! •" Transports!various!‘subtypes’!of!media!and!control! •" Audio,!Video,!SMPTE!Time!Code!and!other!formats:! •" iec61883:4:!MPEG2!Video! •" iec61883:6:!Audio! •" 24!bit!and!32!bit!fixed!point!audio!transport! •" 32!bit!floating!point!audio!transport! •" Audio!Clocking! •" MIDI! •" SMPTE!Time!Code! •" iec61883:8:!Camera!(IIDC)!video!! •" IEEE!1722.1!(AVDECC)! ! IEEE+P17224rev+adds:+ ! •" AVTP!Audio!Format,!supporting!Dolby!E!Encoded!AES:3!streams! •" Compressed!Video!Format!:!including!H.264!and!MJPEG!and! striped!JPEG:2000! •" Clock!Reference!Format!for!transporting!arbitrary!clocks! •" SDI!Video!Format!for!transporting!SDI!video! •" Raw!Video!Format!for!transporting!arbitrary!uncompressed!video! without!meta:data! •" Time!Synchronous!Control!Format! •" Encryption!and!Signing!formats!for!session!security! •" Layer!3!UDP!Transport!of!media!and!control!via!IPv4!and!IPv6! ! AVDECC+Features+ ! •" Discovery! •" Enumeration! •" Connection!management! •" Control! ! ! ! ! ! Deploying+Large+Scale+AVB4TSN + + !

  4. 4 ! ! ! Tiny+Scale+AVB+Networks+ ! •" Either!direct!connection!or!a!single!low!port!count!switch! •" One!or!two!talkers! •" No&need&for&media&clock&management& ! Example+ ! •" 1!Talker,!1!Listener,!1!Stream! •" 1!to!24!channels!of!audio!@!48!or!96!kHz!! •" Digital!Snake! •" Computer!to!AVB!Speaker! •" Audio!input!box!to!AVB!Speaker! •" Tunnelling!8!MADI!connections!point:to:point!through!a!GigE! network!(448!channels)! ! Small+scale+AVB+networks+ ! •" One!Controller,!possibly!embedded!in!a!Talker!or!Listener! •" One!or!two!switches! •" All!media!fits!on!one!network!link! •" All&media&can&go&everywhere& ! Example+1:+Home+use+ ! •" 100baseT!Ethernet! •" 4!AVB!Talker!devices! •" 8!channels!per!stream!(48!kHz)! •" 1!stream!per!AVB!Talker!device!(8!ch)! •" 4!media!streams!+!1!media!clock!stream! •" 32!channels! •" 74!688!000!bps! ! + Deploying+Large+Scale+AVB4TSN+ !

  5. 5 ! ! Example+2:+Music+Studio+ ! •" Gigabit!Ethernet! •" One!24!port!switch! •" 14!AVB!Talker!devices! •" 8!channels!per!stream!(48!kHz)! •" 3!streams!per!AVB!Talker!device!(24!ch)! •" 42!media!streams!+!1!media!clock!stream! •" 336!channels! •" 724!032!000!bps! ! Medium+scale+AVB+Networks+ ! •" Live!theatre!/!musical! •" Live!concert!! •" One!or!two!Controllers! •" Multiple!24!port!switches! •" Mostly!Gigabit!Ethernet! •" One!10!Gigabit!Ethernet!Fibre!link!for!long!runs! •" All!Media!does!not!fit!on!just!one!link! ! Example+ ! •" 50!AVB!Talker!Devices,!each!with!multiple!stream!sources! •" 50!AVB!Listener!Devices! •" 150!talker!stream!sources!(48!or!96!kHz)! •" 200!listener!stream!sinks! •" 8!channels!per!stream!(48!kHz)! •" 3!streams!per!AVB!Talker!device!(24!ch)! •" 150!media!streams!+!1!clock!stream! •" 1200!channels:!2!569!536!000!bps! ! ! ! Deploying+Large+Scale+AVB4TSN + + !

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