COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED. 1 Scaling WebRTC with Media Servers Vince Puglia Developer Advocate –

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

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

Scaling WebRTC with Media Servers

Vince PugliaDeveloper Advocate – Dialogic

October 7th, 2015


• 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 XMS - Software-based media server | MRF | MCU | media platform

• Millions of rich media mixing sessions deployed worldwide

About Me

Vince PugliaDeveloper Advocate

[email protected]/in/vincentpuglia

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


Media Servers?


Paradigm Shift – the acceptance of media servers


The role of the Media Server

Multi-party Conferencing

TranscodingBroadcastingRecording

Augment realityStream Processing

Media ServerMedia Server


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


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


ADVANCEDFUNCTIONALITY

SCALABILITY RELIABILITY


Advanced Functionality


Multiparty Conference – FULL MESHmess

GOOD: ‘Simple’ to implement Low latency Low cost to implement

BAD: High up-link & down-link BW at client High CPU to encode/decode at client No advanced functionality

(interworking, record, analytics, etc)


Multiparty Conference- Selective Forwarding Unit (SFU)


GOOD: High performance Low latency UI flexibility

BAD: No transcoding / SIP integration /

least common codec High down-link BW at client High CPU to decode at client


Multiparty Conference- Multipoint Control Unit (MCU)


GOOD: Transcode, transrate, transsize Low CPU & BW at client Advanced functionality

(interworking, centralized recording, analytics,

BAD: Transcoding is CPU intensive Additional latency UI limitations - Layout controlled by

server


WHICH DO I CHOSE?

MESH SFU MCU

GOOD BAD GOOD BAD GOOD BAD

Simple to implement High BW at client High performance No transcoding / SIP int. T-code/T-rate/T-size T-code is CPU intensive

Low latency High CPU at client Low latency High BW at client Low CPU & BW at client Additional latency

Low cost to implement No advanced functionality UI flexibility High CPU at client Advanced functionality UI limitations

WHY CHOSE?


Scalability

VERTICAL HORIZONTAL

COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED.16 16

Media Server-1Media Server-1

Scalability

NOT ALL MEDIA SERVER TASKS ARE CREATED EQUALNOT ALL MEDIA SERVER TASKS ARE CREATED EQUAL

Media Server-2Media Server-2



Scalability


Scalability


Scalability - Media Resource Broker

Standards compliant – RFC 6917 & 3GPP TS 23.218

Intelligent load balancer & orchestration for media servers



Media Resource Broker (MRB):ASAS

MRBMRB

Media ServerMedia ServerMedia

ServerMedia Server


Media ServerMedia ServerMedia

ServerMedia ServerMedia

ServerMedia Server


IVRCONF TRANSCODE


Cloud IaaS / NFVI

Orc

hest

ratio

n

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


Scalability - Pseudo Call-flow with a media server

AS MRB MS1 MS2 Client

Call signaling

Media control

MS1 statusMS2 status

Media control Media


Reliability


Reliability- Media Resource Broker

Standards compliant – RFC 6917 & 3GPP TS 23.218

Intelligent load balancer & orchestration for media servers

Media server failure detection Stateful call preservation

“Moves” established sessions Local and geographic redundancy



Media Resource Broker (MRB):ASAS

MRBMRB



Pseudo Call-flow – traditional fail-over with RE-INVITE

AS MRB MS1 MS2 Client

Call signaling – REINVITE with new addresses

Media control

MS1 statusMS2 status

Media control + call states

Media


Reliability


Building for scale and reliability


Application Server

Application Server

signaling

media


‘API’



Application Server

Application Server ‘API’

signaling

media



Media ServerMedia ServerMedia ServerMedia Server

Application Server

Application Server

signaling

media


‘API’


Media ServerMedia ServerMedia ServerMedia Server

Application Server

Application Server

signaling

media

MRBMRB


‘API’


Media ServerMedia ServerMedia Server-2Media Server-2

Application Server

Application Server

signalingmedia

MRBMRB

Media ServerMedia ServerMedia Server-1Media Server-1Media ServerMedia ServerMedia Server-3Media Server-3


New york Chicago San Francisco

‘API’


MRBMRB


Application Server

Application Server

signalingmedia

MRBMRB




‘API’


MRBMRB


Application Server

Application Server

signalingmedia

MRB-2MRB-2




MRBMRBMRB-1MRB-1 MRBMRBMRB-3MRB-3New york Chicago San Francisco

‘API’


MRBMRB


Application Server-2


signalingmedia

MRB-2MRB-2









‘API’ ‘API’ ‘API’


MRBMRB




signalingmedia

MRB-2MRB-2








Application Server-3LBLB LBLB

‘API’ ‘API’ ‘API’


LBLBLBLBApplication

Server-3Application

Server-3 ‘API’

MRBMRB




signalingmedia

MRB-2MRB-2







‘API’‘API’


LBLBLBLBApplication

Server-3Application

Server-3 ‘API’

MRBMRB




MRB-2MRB-2







‘API’‘API’

Cloud IaaS / NFVI

Orc

hest

ratio

n


WEBRTC IN THE WILD

WHO: SaferMobility WHAT: Mobile safety, information sharing, and emergency

notification system technology Universities, Corporate campuses & hospitals Video, Audio & Location Android & iOS with WebRTC & SIP

WHY WEBRTC: Endpoint cost Encryption / Security

HOW MEDIA SERVER ENHANCES THE SOLUTION:


Summary

Media Servers are becoming a staple for real world deployments Many architectures to choose from – why chose? Think scale and reliability

Thank you! - Any questions?

Documents

COMPANY CONFIDENTIAL © COPYRIGHT 2015 DIALOGIC CORPORATION. ALL RIGHTS RESERVED. 1 Scaling WebRTC with Media Servers Vince Puglia Developer Advocate –