1. Project JXTA
By Jude Mercado

2. Background
Project JXTA started as a research project at Sun Microsystems, Inc. under the guidance of Bill Joy and Mike Clary
Released to the community in April 2001
It is currently an ongoing open-source project to develop ad hoc, peer-to-peer computing

3. Project Goals
Standardize a common set of protocols for building p2p applications
Peer Discovery Protocol
Peer Resolver Protocol
Peer Membership Protocol
Pipe Binding Protocol
Endpoint Routing Protocol
Peer Information Protocol

4. Project Goals (Cont’d.)
Create platform independent applications
Interoperability

5. JXTA Platform
“insert picture”

6. JXTA Components
Peers
Pipes
Services
Peer Groups

7. 1. PEERS Fundamental entities in a JXTA system
Represented by unique Peer ID
Can be associated with one or more physical networking endpoints
TCP – IP address plus port number
HTTP -- URL
Wireless packet network – cell phone #

8. 2. PIPES Provide communication channels for JXTA peers Dynamic Input
Output
Dynamic
Not bound to a physical endpoint until just before communications occur

9. 3. SERVICES Hosted by a peer
Performs useful work on behalf of a remote peer
Resembles client-server relationship

10. 4. PEER GROUPS
A security domain within which membership can be authenticated and managed
Group with shared common services
All peers belong to a default group
“world peer group”

11. Platform Core Services
Discovery
Pipe
Resolver
Membership/Access
Monitor

12. 1. Discovery Service Allows peers to discover each other
Also used to discover peer groups, services, pipes
Discovery is performed via query for specific advertisements

13. 2. Pipe Service Enables peers to bind to pipe endpoints
Manages pipes created by a peer
Facilitates passing of messages through pipes

14. 3. Resolver Service
Provides a propagation service to query requests within a peer group

15. 4. Membership/Access Service
Security service
Can be used to control access to any service or resource

16. Monitor Service
Allows for a peer to be monitored for uptime, traffic on each incoming and outgoing channel, and other information related to status

17. JXTA Virtual Network
“insert picture”

18. References jxta.org java.sun.com JXTA Peer-to-Peer Computing with Java
By Sing Li