Presented By:Niharjyoti Sarangi

1. INTRODUCTION – WHAT & WHY 2. KEY FEATURES3. JXTA ARCHITECTURE4. JXTA LAYERS5. JXTA JARGONS6. JXTA PROTOCOLS7. JXTA SHELLS8. JXTA ADVANTAGES

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AN OPEN P2P PROTOCOL IMPLEMENTATION ON ANY

NETWORED GADGET OPEN SOURCE PROJECT BEGUN BY SUN MICROSYSTEMS

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MISSING STANDARD SET OF PROTOCOLSONLY P2P P/C TO WORK COLLABORATIVELY & INDEPENDENTLYLIMITATIONS OF IP

UNIQUE ID FOR EACH DEVICENATPATH OPTIMIZATIONCAN LEAP FIREWALLS

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INFORMATION BANDWIDTH RESOURCES

INTER-OPERABILITY - powers of Napster, Gnutella & AIM integrated UBIQUITY PLATFORM INDEPENDENCE SECURITY

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PLATFORM – MINIMAL & ESSENTIAL PRIMITIVES• Peer & Peer group discovery• Communication• Monitoring• Security

SERVICES – N/W & WEB SERVICES• Indexing & Searching• Distributed File System

APPLICATIONS• Instant messaging• Content Management• P2P email Service

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PEERS Virtual Mailboxes

PEER GROUPS To create a secure , scoping & monitoring environment.

MESSAGES XML Datagram

Envelope having header, digest, source & destination endpoints

PIPES Virtual communication channels Unidirectional , Synchronous request response, Bulk

Transfer, Secure

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OPTIMISED ROUTING MECHANISMMAINTAINS

RENDEZVOUS PEER VIEW (RPV)SHARED RESOURCES DISTRIBUTED INDEX

(SRDI)DISTRIBUTED HASH TABLE (DHT)RANDOM WALK

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LAN-BASED DISCOVERY.DISCOVERY THROUGH INVITATION.CASCADED DISCOVERY.DISCOVERY VIA RENDEZVOUS POINTS.

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SET OF SIX PROTOCOLS PEER MEMBERSHIP PROTOCOL PEER INFORMATION PROTOCOL PEER BINDING PROTOCOLPEER DISCOVERY PROTOCOL PEER RESOLVER PROTOCOL PEER ENDPOINT PROTOCOL

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JXTA - TECHLOLOGY OVERVIEW

Transport

Peer MembershipProtocol

Peer EndpointProtocol

Peer ResolverProtocol

Peer DiscoveryProtocol

Peer BindingProtocol

Peer InformationProtocol

Peer

PeerGroup

Resolver

EndpointTransport

Peer MembershipProtocol

Peer EndpointProtocol

Peer ResolverProtocol

Peer DiscoveryProtocol

Peer BindingProtocol

Peer InformationProtocol

Peer

PeerGroup

Resolver

Endpoint

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Joining and leaving peer groups Actions:

Apply Join Renew Cancel

Authenticators and security credentials to provide desired level of protection

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Learn about the CAPABILITIES and STATUS of other peers i.e. uptime, offtime, traffic etc QUERY FOR ID PEER INFO MESSAGES

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Bind a pipe advertisement to a pipe endpoint Abstract operations i.e. create, open, close, delete, send, receive. JXTA HTTP, JXTA TCP etc.

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Enables peers to discover peer resourcesPeers, peer groups, pipes, services, etc

Default discovery protocolBased on web-crawling and rendezvous peersRendezvous peers

Cache advertisementsForward requests

Discovery Request messagesUnicast Propagate

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Enables a peer to send a generic query to another peer serviceEach service can register a handle in peer group resolverUnique service handler nameA peer is not required to respond to a Resolver Query request

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Routing Information Auto update as N/W topology changes Router peers

Cache route informationBridge different logical and physical networks

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Crypto Library Hashing functions (MD5) Symmetric encryption (RC4) Asymmetric encryption (DH and RSA)

Pluggable Authentication Module (PAM)Password based login schemeTransport security mechanism : CredentialsSimple access-control mechanismNAT/Firewalls – active research

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Application built on top of Jxta PlatformNetworked command-line interfaceShell commands (similar to Unix)

Man Env Whoami Peers Importfile Mkpipe

Pipe operators: | and < >

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SPEEDOPERATING SYSTEM INDEPENDENTTRAVERSE FIREWALLSUNIQUE IDENTIFIER FOR EACH PEERPATH OPTIMISATIONDECENTRALIZATON

Resource availabilityReliability

VERSATILE PROTOCOLSNo particular PL,OS,N/W topology , encryption or security

modelEasy to implement and integrate Independent of transport protocols

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Project Jxta homepagehttp://www.jxta.org

Protocol Specification and whitepapershttp://www.jxta.org/white_papers.html

Jxta Shell homepagehttp://shell.jxta.org

CMS homepagehttp://cms.jxta.org

InstantP2P homepagehttp//instantp2p.jxta.org

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THE JXTA TECHNOLOGY OUTLINEWHAT IS JXTA ?WHY JXTA?JXTA OVER IPSOLUTON TO MODERN COMPUTING KEY FEATURESARCHITECTURELAYERSJXTA JARGONSRELAY PEERSRENDEZVOUS PEERSCOMMUNICATIONDISCOVERY MECHANISMSJXTA PROTOCOLSJXTA PROTOCOLS Peer Membership ProtocolPeer Information ProtocolPeer Binding ProtocolPeer Discovery ProtocolPeer Resolver ProtocolPeer Endpoint Protocol SECURITYJXTA SHELLADVANTAGESREFERENCESTHANK YOU !!QUERIES ???