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Network Framework –get(), set(), put(), rm(), onUpdate()

BonAHA: a Service Discovery Framework for Opportunistic Networks. Suman Srinivasan, Henning Schulzrinne, Internet Real Time Lab, Computer Science Department, Columbia University {sumans, hgs}@cs.columbia.edu. Applications written using BonAHA. Opportunistic Networks.

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Network Framework –get(), set(), put(), rm(), onUpdate()

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  1. BonAHA: a Service Discovery Framework for Opportunistic Networks Suman Srinivasan, Henning Schulzrinne, Internet Real Time Lab, Computer Science Department, Columbia University {sumans, hgs}@cs.columbia.edu Applications written using BonAHA Opportunistic Networks • Mobile nodes; highly mobile networks • No infrastructure • OLPC; mesh networks • “Ad-hoc applications”/ “Mobile P2P applications” • Applications need to • Be aware of network transitions • State/metadata of nodes in the network BBS application • Runs on iPod/iPhone • Allows users to upload “posts” • Other users can pick up “posts” and share their own • Information on events, etc that they are interested in sharing BonAHA framework [1] node1.register() key11 = value11key12 = value12key13 = value13key14 = value14 Group Chat • Really localized applications • Work in “cloud” or “opportunistic” networks • Examples • File synchronization • Bulletin Board system • We have a framework for this: BonAHA • And applications built using it • Allows users to discover peers in local network and chat • Rooms can be set up for private chats Node 1 [2] node1.get(key13) key21 = value21key22 = value22key23 = value23key24 = value24 [3] data = node1.fileGet( value13); BonAHA [CCNC 2009] File Sharing Node 2 • Users can share files with each other by dragging and dropping files onto peers’ computers • Handles peers entering and leaving network BonAHA API Related Work • For registration • service = new BService(“loc", "tcp"); • service.set("Latitude", lat); • service.register(); • service.setListener(this); • For network transitions • nodeUpdated() • nodeExited() • Proem (2001) • Peer2Me (2004) • System on a Device (SyD) (2004) • LightPeers (2007) • Market Content Protocol (MCP) (2008) Future work: common ground? Application • Several network models • Opportunistic network frameworks • DHTs • Overlay networks • Disruption tolerant networks • Is a common framework possible for all models? Network Framework –get(), set(), put(), rm(), onUpdate() ZigBee BlueTooth mDNS/ DNS-SD DHTs? Gnutella? This work was supported by the National Science Foundation (NSF) under Grant 04-54288. The authors would also like to thank the following people for their help: - Ming Ge (file sharing application), Heming Cui (group chat application), Kiwoon Sung (BBS application)

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