JXTA A P2P Implementation

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JXTA A P2P Implementation

• Thripura Venkataramani

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Presentation Overview

• Peer to Peer Computing (P2P)
• Whs of JXTA
• JXTA Model
• JXTA protocols
• Applications of JXTA
• Summary

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Peer-Peer Networks(P2P)
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Peer-to-Peer(P2P)

• The exchange of data (documents, MP3s, voice)
  between two peers that can act as both the
  client and the server.
• P2P covers a wide range of applications-sharing
  files,distributed search,sharing CPU and
  resources, web services,instant messaging
  devices communicating together.
• P2P is about any device easily connecting
  directly to other devices to enable a more
  cooperative,or social style of computing.

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Centralized (Vs) P2P System

• Centralized System
• More users means more server power and
  bandwidth is required.
• Exist only where someone is willing to invest
  resources.
• One location stores all the data.

• P2P System
• More users means more resources are able to share
  the load.
• Can exist without any person or company
  supporting them.
• Data must be retrieved from multiple locations.

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JXTA
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Whs of JXTA

• JXTA is a open set of XML-based protocols for
  creating peer-to-peer network computing
  applications and services.
• Pronounced as Juxtapose or Juxta meaning that
  P2P computing is juxtaposed to the traditional
  and hierarchical client-server model.
• JXTA was started as a Sun Microsystems Research
  project in April 2001, spearheaded by Bill
  Joy,chief scientist at Sun.

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Whs of JXTA

• Current P2P programs address only one function
  and run only on a single platform.
• Most P2P applications are unable to directly
  share data with similar applications (
  Eg.Kazaa/Gnutella/ ICQ/AIM/MSIM)
• JXTA creates a common platform for P2P
  applications.
• JXTA makes development simple,fast and easy,
  allowing developers to focus on the contents of
  their applications.

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Evolution of Distributed Computing

• TCP/IP HTTP JXTA
  (Client-Server) (Web-based)
  (Peer-to-Peer)

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JXTA Technology Objectives

• Interoperability
• Platform independence
• Ubiquity
• Security monitoring

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The JXTA Model
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JXTA Model

• The JXTA platform standardizes the manner in
  which peers
• Discover each other
• Advertise network resources
• Communicate with each other
• Cooperate with each other to form secure peer
  groups

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JXTA Protocols

• The JXTA platform is defined by six networking
  protocols or XML message formats for
  communication between peers.
• Peer Discovery Protocol (PDP).
• Peer Resolver Protocol (PRP).
• Peer Information Protocol (PIP).
• Peer Membership Protocol (PMP).
• Pipe Binding Protocol (PBP).
• Peer Endpoint Protocol (PEP).

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Benefits of JXTA

• Brings devices,services and networks together
  taking the complexity out of the network and
  operating environments
• Users have better access to content across
  multiple devices,regardless of location
• It enables classic P2P applications such as
  collaboration,content delivery and sharing
  networks.
• JXTA allows any device on the network(cell
  phones,PDAs,Servers and PCs) to communicate with
  each other

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Discover Connect Anywhere
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JXTA Applications

• Picture Sharing
• Multiplayer Gaming
• Collaboration
• Device Synchronization
• Instant Messaging

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JXTA Sample Applications ---myJXTA2 and PicShare
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JXTA Commercial Applications
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JXTA Commercial Applications
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JXTA Collaborative Application
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JXTA J2ME Wireless devices
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The Future of JXTA

• New services and opportunities.Eg.content
  management,digital rights,presence,identity,integr
  ation with web services.
• JXTA in J2SE Micro Edition implementation in
  other languages (C/C/C, Perl, Python, etc).
• Protocol standardization through public
  organization-IETF(Internet Engineering Task
  Force)
• Massive scalability
• High performance

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Criticism!

• JXTA is new, rapidly changing and undocumented.
• Peer 2 Peer is being fueled by Napsterism.
• Well-defined protocols can squash creativity in a
  new research area.
• Reliance on XML forces the hand of developers.
• JXTA is too late, there are already popular P2P
  applications out there.

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Summary

• Project JXTA is an open source platform for P2P
  applications it is free!
• Project JXTA technology is language,operating
  system,network and service agnostic
• Project JXTA works on any network device from
  cell phones to super servers.
• Project JXTA lets you build and deploy enterprise
  and commercial P2P solutions more quickly.

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References

• http//spec.jxta.org/project/www/docs/DomainFAQ.ht
  ml
• http//spec.jxta.org/v1.0/docbook/JXTAProtocols.ht
  ml
• http//www.jxta.org/servlets/DomainHome
• http//www.javaworld.com/javaworld/jw-10-2001/jw-1
  019-jxta.html
• http//www.onjava.com/pub/a/onjava/2001/04/25/jxta
  .html
• http//www.openp2p.com/pub/a/p2p/2001/06/06/jxtase
  arch.html

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Thank You For Listening !!