MWC Barcelona WebRTC Meetup 2015 - Scaling WebRTC with Media Servers
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This document discusses scaling WebRTC applications with media servers. It begins with an overview of Dialogic Corporation and the presenter Vince Puglia. The discussion then covers what media servers are and why scaling is important for WebRTC services. Peer-to-peer and peer-to-server WebRTC architectures are compared. Multi-party WebRTC options like full mesh, SFU, SFU with simulcast, and MCU are described in terms of server load, bandwidth usage, and latency. Reliable scaling can be achieved through a media resource broker and elastic scaling on cloud infrastructure. Dialogic's PowerMedia XMS media server platform is presented as a software-based real-time media processing solution.
MWC Barcelona WebRTC Meetup 2015 - Scaling WebRTC with Media Servers
- 1. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.1 COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED. Barcelona Meetup 2015 Scaling WebRTC with Media Servers Vince Puglia Developer Advocate
- 2. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.2 • Over 25 years connecting and adding value to Enterprise and Service Provider Networks • US HQ (New Jersey) / 20+ Regional offices • Strong Ecosystem • +3,000 application developers • 48 of top 50 mobile carriers • 80% of the Fortune 1000 • PowerMedia Media Server / IMS MRF / SR140 • Millions of rich media mixing sessions deployed worldwide About Me Vince Puglia Developer Advocate Vincent.Puglia@dialogic.com linkedin.com/in/vincentpuglia http://www.slideshare.net/Dialogic @vfpuglia
- 3. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.3 The Scope of this Discussion What we will discuss: Scaling media What we will NOT discuss: Signaling User identification and authentication Access control and security Push notifications Federation And many, many other features your particular application might already have or need to be a real service
- 4. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.4 What is a media server?
- 5. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.5 What is scalability?
- 6. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.6 What is scalability? Scalability is the ability of a real-time communication application to reliablyreliably handle a growing amount of feature-richfeature-rich work in a capable manner or its ability to be elasticelastic to accommodate that growth
- 7. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.7 WHY SCALE?
- 8. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.8 WebRTC Services– P2P vs. P2S Multi-party Conferencing TranscodingBroadcasting Recording Augment reality Stream Processing
- 9. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.9 Peer-to-Peer vs. Peer-to-Server signaling signaling media Media Server ServerServer Peer-to-Server ServerServer client client signaling signaling media Peer-to-Peer client client m edia control
- 10. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.10 Multiparty WebRTC – FULL MESH MESH Server Load N/A Client Load High (1:N) Encoders 1 Decorders N Bandwidth High (N:N) Uplink N streams Downlink N streams Video layout Client decides End-to-end latency Lowest *Encodes cost more than decodes* *Uplink bandwidth typically limited* *Client processing is NOT unlimited*
- 11. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.11 Multiparty WebRTC - Selective Forwarding Unit (SFU) SFU Server Load Medium Client Load Medium (1:N) Encoders 1 Decorders N Bandwidth Medium (1:N) Uplink 1 stream Downlink N streams Video layout Client decides End-to-end latency Low Multiparty WebRTC - Selective Forwarding Unit (SFU) with Simulcast SFU Server Load Medium Client Load Medium (1:N) Encoders 2 Decorders N Bandwidth Medium (1:N) Uplink 2 stream Downlink N streams Video layout Client decides End-to-end latency Low
- 12. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.12 Multiparty WebRTC - Multipoint Control Unit (MCU) MCU Server Load High Client Load Normal (1:1) Encoders 1 Decorders 1 Bandwidth Normal (1:1) Uplink 1 stream Downlink 1 stream Video layout Server decides* End-to-end latency Acceptable
- 13. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.13 Multiparty WebRTC comparison Client-sidestreams (uplink+downlink) MESH SFU MCU Server Load N/A Medium High Client Load High (1:N) Medium (1:N) Normal (1:1) Bandwidth High (N:N) Medium (1:N) Normal (1:1)
- 14. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.14 Scaling Reliably – very subjective Image source: webrtcHacks - https://webrtchacks.com/stun-helps-webrtc-traverse-nats/
- 15. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.15 MRBMRB App Servers Scaling Reliably – MRB Media Resource Broker (MRB) Standards compliant – RFC 6917 & 3GPP TS 23.218 100% software based Media server failure detection Stateful call preservation “Moves” established sessions Local and geographic redundancy
- 16. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.16 Cloud IaaS / NFVI Orchestration Elastic Scaling – horizontally App Servers A little help?!? A little help?!? Okay!Okay! I’m here for ya I’m here for ya Thanks All set! Thanks All set! MRB MS-1 MS-2 ASAS
- 17. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.17 2-minute Scaling WebRTC w/ Media Server Review Media Resource Broker Media server Application Server / Business Logic ASAS ASASASAS ASAS ASAS ASAS Feature-Rich Reliable Elastic Orchestration
- 18. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.18 PowerMedia XMS Software-based real-time media processing platform
- 19. COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.19 Multi-party video summary comparison http://networkfuel.dialogic.com/webrtc-whitepaper