Project JXTA : An Open Peer-to-Peer Network Environment Gene Kan Project JXTA Sun Microsystems, Inc.

What is JXTA? An open network programming platform to enable P2P services and applications. Defines a set of protocols for interoperating Is language- and network-independent Is 100% open source, available at:

What is P2P? P2P has many examples: Sharing files or swapping music Sharing CPU and storage resources Distributed search and indexing Instant messaging & pervasive devices talking with one another Serverless collaborative work (and play) New Smart Web Services New forms of content distribution Adapted from an IBM presentation on P2P

Sun's interest in peer-to- peer P2P is the continuation of our vision -- “The Network Is the Computer” Demonstrate continued thought leadership Ensure open, level competitive field Advance Sun’s readiness for P2P desktop software, workstations, compute farms, iPlanet products, servers, storage, network appliances

Evolution of computing

Project JXTA: why now? More people connected, more data generated More nodes on the Internet and wireless Web More bandwidth available More computing power available (disk, memory, CPU) More interesting applications, content, and services Edge devices increasingly providers of resources Use of the Network/ Value of the Network Bandwidth Users Services Data Transactions Devices Everything that touches the network is growing at an exponential rate Network Computing Explosion

Problems with today's Internet Information: hard to find, impossible to catalog and index Bandwidth: hot links get hotter, cold ones stay cold Computing resources: heavily loaded nodes get overloaded, idle nodes remain idle

Benefits of peer-to-peer Theory Dynamic and adaptive discovery of information Performance and functionality increase as more peers participate Better utilisation of bandwidth, processor, storage, and other computing resources Extend RAID concepts to computing resources Examples Sharing content cache over high speed LAN Data mirroring and striping using shared storage Deep search beyond the web Dynamic collaboration

Project JXTA: an open community Sun: initiator, contributor Open source community Adopt, innovate, develop, promote Apache licensing gives developers flexibility (Modified BSD license.) Everyone is free to use source code. Only requirement is to acknowledge Sun. Not required to publish modifications to source code.

Problems with other peer-to- peer systems under development Proprietary Others aim to create a system from which they can profit directly. Lease the intellectual property or lease the network. Computing silos: non-interoperable, fragmented networks TCP/IP only: built-in dependency on TCP/IP transport

JXTA technology objectives Interoperate across different peer-to- peer systems and communities Platform independence (programming languages, system platforms and networking platforms) Ubiquity: Every device with a digital heartbeat J2ME MIDP for now

JXTA demonstration: chess

JXTA community status 80,000+ downloads in 3 months 25+ projects 5000 members Active discussion groups (4000+ msgs)

Partial list of current projects rosettachat (gonzo) instantp2p (kuldeep) shell (tra) rrs (ziad) fuel-auction (bfoley) jxtaspaces (vanessa) payment (frose) cms (dac) search (stevew) jxta-wire (lomax) jxta-xml-rpc (jbeatty) monitoring (kuldeep) platform (tra) security (yeager) jxme (kuldeep) pocketjxta (ianm) vojxta (gkasinath) haggle (navacron) p2p- (nitin) jxrtl (savage)

JXTA core services projects C/C++ and J2ME MIDP implementations Improved solutions for firewalls and NAT Reliable and secure pipes Simpler APIs Naming services Authentication services Revised specification