mwc barcelona webrtc meetup 2015 - scaling webrtc with media servers

COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.1

COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.

Barcelona Meetup 2015Scaling WebRTC with

Media Servers

Vince Puglia

Developer Advocate


• 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 PugliaDeveloper Advocate

[email protected]/in/vincentpuglia

http://www.slideshare.net/Dialogic@vfpuglia


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


What is a media server?


What is scalability?


What is scalability?

Scalability is the ability of a real-time

communication application to reliably reliably

handle a growing amount of feature-richfeature-rich

work in a capable manner or its ability to be

elasticelastic to accommodate that growth


WHY SCALE?


WebRTC Services– P2P vs. P2S

Multi-party Conferencing

TranscodingBroadcasting

Recording

Augment reality Stream Processing


Peer-to-Peer vs. Peer-to-Server

signaling signaling

mediaMedia Server

ServerServer

Peer-to-Server

ServerServer

client client

signalin

g signaling

media

Peer-to-Peer

client client

media

control


Multiparty WebRTC – FULL MESH

MESH

Server Load N/AClient Load High (1:N)

Encoders 1Decorders N

Bandwidth High (N:N)Uplink N streamsDownlink N streams

Video layout Client decidesEnd-to-end latency Lowest

*Encodes cost more than decodes**Uplink bandwidth typically limited**Client processing is NOT unlimited*


Multiparty WebRTC - Selective Forwarding Unit (SFU)

SFU

Server Load MediumClient Load Medium (1:N)


Bandwidth Medium (1:N)Uplink 1 streamDownlink N streams

Video layout Client decidesEnd-to-end latency Low

Multiparty WebRTC - Selective Forwarding Unit (SFU) with Simulcast

SFU

Server Load MediumClient Load Medium (1:N)


Bandwidth Medium (1:N)Uplink 2 streamDownlink N streams

Video layout Client decidesEnd-to-end latency Low


Multiparty WebRTC - Multipoint Control Unit (MCU)

MCU

Server Load HighClient Load Normal (1:1)

Encoders 1Decorders 1

Bandwidth Normal (1:1)Uplink 1 streamDownlink 1 stream

Video layout Server decides*End-to-end latency Acceptable


Multiparty WebRTC comparison

Clie

nt-s

ide

stre

ams

(upl

ink

+ do

wnl

ink)

MESH SFU MCU

Server Load N/A Medium HighClient Load High (1:N) Medium (1:N) Normal (1:1)Bandwidth High (N:N) Medium (1:N) Normal (1:1)


Scaling Reliably – very subjective

Image source: webrtcHacks - https://webrtchacks.com/stun-helps-webrtc-traverse-nats/


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


Cloud IaaS / NFVI

Orc

hest

ratio

n

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


2-minute Scaling WebRTC w/ Media Server Review

Media Resource Broker

Media server

Application Server / Business Logic

ASASASASASASASAS ASASASAS

Feature-Rich Reliable Elastic

Orc

hest

ratio

n


PowerMedia XMSSoftware-based real-time media processing platform


Multi-party video summary comparison

http://networkfuel.dialogic.com/webrtc-whitepaper

mwc barcelona webrtc meetup 2015 - scaling webrtc with media servers

Technology

dialogic corporation

rights reserv

scaling webrtc

decorders nbandwidth

decorders nbandwidth

client processing

webrtc services p2p

end latency lowest