Designing an IP Studio – Practical Lessons From the Field

Presenters : Gerard Phillips - Arista

Year : 2019

dlp_document_download : AIMS IP Showcase IBC 2019 September 2019 Curated by Video Services Forum vsf.tv 1 I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 C U R A T E D B Y Designing an IP Studio Practical lessons from the field Gerard Phillips – Systems Engineer Arista Networks I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 Scale •Absolutely vital to have clear objectives here  •Think - initial deployment >>>>>>> anticipated future needs •Plan for 25/50/100Gbe capability – 2.5x more dense than 40Gbe •400Gbe provides 4x capacity for massive scale •Beware feature / scale creep 2 AIMS IP Showcase IBC 2019 September 2019 Curated by Video Services Forum vsf.tv 2 I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 Scale – Rules of thumb •Sometimes easier to start with "SDI" scale •Overlay this with physical constraints •Average "full duplex" use? •Average planned BW usage %? •Average flow size – Audio/SD/HD/UHD? •Are you thinking ST2110, or ST2022 -6? 3 •576 2 •Centralized model •60% full duplex •Max 75% BW usage •80% 1080p50, 20% UHD •ST2110 •576*( 0.8*2 + .2*10 )/(0.6 * 0.75 ) •4.6 Tbps total throughput •46x 100Gbe host facing ports. I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 Facility Geography •Consider your workflows, how much BW is needed ? •Centralized, or more Campus like? •Physical cabling lengths? •Shared "virtual" facilities model? •Think "failure domains" ‒Functional alignment ‒Resiliency alignment 4 Studio Gallery CAR AIMS IP Showcase IBC 2019 September 2019 Curated by Video Services Forum vsf.tv 3 I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 Physical Cabling •DAC - Direct Attach Copper. ‒400Gbe @ 3m, 10/25/40/50/100Gbe @ 5m •AOC – Active Optical Cable. ‒10/25/40/50/100Gbe 400Gbe @ 30m . Can be broken out •SR – Short reach ‒Typically 70 -100m , depending on OM3/OM4 MM fiber •LR – Long reach ‒Typically 10km over SM fiber 5 I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 Some thoughts on costs •Don’t forget Interconnect and fiber costs in your estimates •M M vs SM Infrastructure? Is really cost vs simplicity •Monolithic may look expensive if your initial scale is small - you’re not using it all •Monolithic often cheaper for comparable end point count •Switching / connectivity costs are typically 10% of a green field DC installation – Does that feel right for Broadcast?? 6 AIMS IP Showcase IBC 2019 September 2019 Curated by Video Services Forum vsf.tv 4 I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 7 Network Services • Preparation, Preparation, Preparation … • IGMP or SDN, or both? • IP addressing scheme • Dynamic Routing • MLAG • Firewalls • Multi -Tenacy • L2 mobility (VM’s) • NATing • Encryption (IP / MAC Sec) I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 L2 vs L3 8 •Widely used in small Data Centers, Campus, etc •L2 networks typically deployed for audio installations ‒Simple ‒Low bit rate flows, undersubscribed networks ‒Some control systems use L2 scoped discovery techniques ‒MLAG provides scale, and spine resilience ‒Limited to 2 spines ‒Large failure domains ‒Routing in the spine AIMS IP Showcase IBC 2019 September 2019 Curated by Video Services Forum vsf.tv 5 I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 L2 vs L3 9 •L2 does not suit Live Production, high bit rate multicast ‒Flows originated in remote switches are flooded towards the querier ‒This potentially requires very large pipes! ‒Large failure domains ‒Limited scalability •L3 is the way to go ‒"Switches " do routing these days & PIM allows multicast to be routed ‒Failure domains are now able to be much smaller ‒Flooding towards the querier is no longer requireT I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 Day one – standup tools 10 Make your life as easy as possible: •Zero Touch Config •Bash, tcpdump •Script your configs •Name your switches •Enable LLDP •Provide port descriptions AIMS IP Showcase IBC 2019 September 2019 Curated by Video Services Forum vsf.tv 6 I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 Day 2 – ongoing monitoring 11 Transparency and Visibility •Plan it in! •SNMP, Syslog, Telemetry •Port Mirroring, Optical tapping •Broadcast specific monitoring tools I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 Summary 12 •You can’t do too much planning and preparation •Make sure your team is cross -functional •If you don’t have the in -house skills: ‒Bring in an experienced SI or ‒Engage AS/PS from the network vendor ‒Use the process to build your skills •Treat Telemetry, Monitoring and Visibility as a 1 st class citizen ‒Build it in from the beginning ‒You’ll benefit straight away AIMS IP Showcase IBC 2019 September 2019 Curated by Video Services Forum vsf.tv 7 I P S H O W C A S E T H E AT R E AT I B C 2 0 1 9 : 1 3 –1 7 S E P T 2 0 1 9 Thank you Thank you to our Media Partners Gerard Phillips, Arista Networks gp@arista.com +44 7949 106098 13