The slidedeck for my talk on Peer to Peer for Mobile devices at Adobe Flash Platform Summit 2011, Bangalore

1. P2P for Mobile Devices
Immanuel Noel | Platform Evangelist, Adobe blog.inoel.in

3. What ?
P2P – File sharing?
Distributed application architecture
Live, Real Time connectivity for devices
Flash Platform support

4. Why ?
• Scalability
• Network Efficiency
• Secure
• Cloud Sourcing Information
• Better User Experience
• Take advantage of P2P capabilities of AIR for
Mobile

5. Where ?
Everything from application-level video
multicasting to swarming file delivery and
multiuser games without a server !
Corporate enterprise, social media, and
entertainment applications

6. Demos
Link on the last slide

7. The Entities
Peer
RTMFP
Group – Super Set of neighbors
Neighbors – Directly connected peers

8. How ?
Group
RTMFP Capable Server

9. Infrastructure
• FMS Server rtmfp://<SERVER>
• Cirrus service (non-commercial),
rtmfp://p2p.rtmfp.net/ + DEVELOPER+KEY
• Isolated LAN rtmfp://

10. Why connect to a external server?
• Facilitate connectivity
• Directory of connected devices
• Authenticity
• Manage topology
• Self managed P2P groups – No Manual Peer ID
Exchange

11. Real Time Media Flow Protocol
• Protocol
• Enables Live, Real time connectivity
• Not File Sharing, Best for streaming
• Unlike RTMP, based on the UDP protocol
• Rapid Connection Restore
• IP Mobility
• 128-bit AES encryption

12. Routing
Multicast
Many to Many
Directed Routing
One to Many
Object Replication
Best effort techniques to transfer large data

13. Group Specifier
• Define a P2P group
• Specify capabilities
– Multicast
– ipMulticastMemberUpdatesEnabled
– MulticastEnabled
– RoutingEnabled
– PostingEnabled
– ObjectReplicationEnabled, and more !
(Group Name + Group Capabilities) = Group Identifier

14. Events
NetConnection.Connect.Success
NetGroup.Connect.Success
NetGroup.Neighbor.Connect
netGroup.sendToNeighbor(data) NetGroup.SendTo.Notify
(event.info.message)

15. NetStream - Audio and Video
Sender
var camera:Camera = Camera.getCamera();
var mic:Microphone = Microphone.getMicrophone();
_outgoingStream.attachAudio(mic);
_outgoingStream.attachCamera(camera);
_outgoingStream.publish( "P2PVideo" );
Listener
NetGroup.MulticastStream.PublishNotify
Receiver
_incomingStream.play("P2PVideo");

16. Where Next
Cirrus
http://labs.adobe.com/technologies/cirrus/
Sample Code
http://inoel.in/p2p

17. Where Right Now
Ekalavya
http://bit.ly/ekalavya

18. Thank You
inoel@adobe.com
Twitter: @immanuelnoel
http://blog.inoel.in