Peer-to-Peer in Flash Player 10.1 Build An App In A Week Go Multi ...
Peer-to-Peer in Flash Player 10.1 Build An App In A Week Go Multi ...
Peer-to-Peer in Flash Player 10.1 Build An App In A Week Go Multi ...
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<strong>Build</strong> <strong>An</strong> <strong>App</strong> <strong>In</strong> A <strong>Week</strong><br />
<strong>Go</strong> <strong>Multi</strong>-User With<br />
<strong>Peer</strong>-<strong>to</strong>-<strong>Peer</strong> <strong>in</strong> <strong>Flash</strong> <strong>Player</strong> <strong>10.1</strong><br />
Tom Krcha<br />
Platform Evangelist<br />
Adobe
Agenda<br />
‣What is <strong>Peer</strong>-<strong>to</strong>-peer?<br />
‣RTMFP - pro<strong>to</strong>col and implications<br />
‣Demo - P2P <strong>In</strong>stant Messenger<br />
‣Directed Rout<strong>in</strong>g<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 2<br />
STRATUS<br />
®
NetGroupSendMode<br />
Encryption<br />
Directed Rout<strong>in</strong>g<br />
WHAT? P2P?<br />
NetGroupSendResult<br />
NetStream<br />
IT’S HUGE!<br />
<strong>App</strong>lication-Level-<strong>Multi</strong>cast<br />
Topology<br />
NAT/Firewall Traversal<br />
RTMFP<br />
Object Replication<br />
NetGroupReceiveMode<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 3<br />
NetGroup<br />
NetStream<strong>Multi</strong>cast<strong>In</strong>fo<br />
Congestion Control<br />
Native <strong>Multi</strong>cast<br />
NetGroupReplicationStrategy<br />
IP Address Mobility<br />
Bootstrap<br />
Partial Reliability<br />
GroupSpecier<br />
NetGroup<strong>In</strong>fo<br />
NetConnection<br />
Fusion<br />
Post<strong>in</strong>g<br />
®
What is <strong>Peer</strong>-<strong>to</strong>-peer?<br />
Source: Wikipedia.org<br />
Hub-and-Spoke network<br />
Centralized server-based service model.<br />
P2P network<br />
A peer-<strong>to</strong>-peer system of nodes without central <strong>in</strong>frastructure.<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 4<br />
Hub-and-spoke:<br />
- centralized<br />
- S<strong>in</strong>gle po<strong>in</strong>t of failure<br />
- cost of a server<br />
- add<strong>in</strong>g more clients make network slower<br />
- need failover and backups<br />
P2P<br />
- decentralized<br />
- add<strong>in</strong>g more clients make network faster<br />
- robustness, no failover<br />
®
How does it work <strong>in</strong> <strong>Flash</strong>?<br />
STRATUS<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 5<br />
®
Adobe Stratus<br />
Hosted rendezvous service<br />
rtmfp://stratus.adobe.com<br />
Looks like FMS, but...<br />
‣ No client-server stream<strong>in</strong>g<br />
‣ No record<strong>in</strong>g<br />
‣ No server-side scripts or application logic<br />
‣ Requires (free) developer key <strong>to</strong> connect<br />
Emerg<strong>in</strong>g technology<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 6<br />
STRATUS<br />
®
<strong>Peer</strong>-<strong>to</strong>-peer <strong>in</strong> <strong>Flash</strong> <strong>Player</strong><br />
RTMFP<br />
‣ Real Time Media Flow Pro<strong>to</strong>col<br />
‣ <strong>In</strong>troduced <strong>in</strong> <strong>Flash</strong> <strong>Player</strong> 10 and upgraded <strong>in</strong> FP <strong>10.1</strong><br />
‣ Based on UDP (lossy, beer latency)<br />
‣ Encrypted 128-bit AES<br />
‣ Need <strong>to</strong> accept every <strong>in</strong>com<strong>in</strong>g connection<br />
USE CASES<br />
‣ <strong>Multi</strong>player games,<br />
‣ VoIP<br />
‣ Audio/Video<br />
‣ Collaboration<br />
‣ Chat<br />
Firewall fallback <strong>to</strong> RTMP/T (<strong>Flash</strong> Media Server)<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 7<br />
Adobe Stratus<br />
Hosted rendezvous service<br />
rtmfp://stratus.adobe.com<br />
STRATUS<br />
®
Types of P2P <strong>in</strong> <strong>Flash</strong><br />
Po<strong>in</strong>t-<strong>to</strong>-po<strong>in</strong>t<br />
Live stream<strong>in</strong>g<br />
Document delivery<br />
Live <strong>App</strong>lication-Level <strong>Multi</strong>cast<br />
Broadcast (1 <strong>to</strong> many, some latency <strong>to</strong>lerable)<br />
one-<strong>to</strong>-one<br />
FP 10<br />
one-<strong>to</strong>-many<br />
<strong>In</strong>teractive (many <strong>to</strong> many, or 1 <strong>to</strong> many with feedback,<br />
low latency required)<br />
FP <strong>10.1</strong><br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 8<br />
“Swarm<strong>in</strong>g”<br />
Large-le download (possibly progressive)<br />
*Connections <strong>in</strong> step 2<br />
Distributed Data S<strong>to</strong>rage (distributed hash table)<br />
DHT-like structures <strong>to</strong> form distributed database<br />
many-<strong>to</strong>-many<br />
FP <strong>10.1</strong><br />
FP <strong>10.1</strong><br />
®
<strong>Peer</strong>-<strong>to</strong>-peer <strong>in</strong> <strong>Flash</strong> <strong>Player</strong><br />
Demo game - MILL<br />
hp://nes<strong>to</strong>r.cz/mill/<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 9<br />
Author<br />
Pavel Šimek, Geewa<br />
Czech Republic<br />
®
<strong>Peer</strong>-<strong>to</strong>-peer <strong>in</strong> <strong>Flash</strong> <strong>Player</strong><br />
Demo app - Phone<br />
hp://labs.adobe.com/technologies/stratus/samples/<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 10<br />
®
What’s new about P2P <strong>in</strong> <strong>Flash</strong> <strong>Player</strong> <strong>10.1</strong><br />
Groups & <strong>Multi</strong>cast<br />
‣ GroupSpecier<br />
‣ NetGroup<br />
‣ NetGroup<strong>In</strong>fo<br />
‣ NetGroupReceiveMode<br />
‣ NetGroupReplicationStrategy<br />
‣ NetGroupSendMode<br />
‣ NetGroupSendResult<br />
‣ NetStream updated<br />
‣ NetStream<strong>Multi</strong>cast<strong>In</strong>fo<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 11<br />
Group of peers<br />
®
Demo: P2P <strong>In</strong>stant Messenger<br />
P2PChatComponent<br />
P2PChatMobile<br />
P2PMessengerLib<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 12<br />
®
Demo: P2P Groups<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 13<br />
®
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 14
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 15
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 16
sendToAllNeighbors<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 17
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 18<br />
Network Address Translation
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential.<br />
More on Directed Rout<strong>in</strong>g<br />
hp://www.<strong>Flash</strong>Realtime.com/<br />
19
ank you!<br />
twier.com/<strong>to</strong>mkrcha<br />
<strong>Flash</strong>Realtime.com
Q/A<br />
Copyright 2009 Adobe Systems <strong>In</strong>corporated. All rights reserved. Adobe condential. 21<br />
®
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