Introduction to Delay/Disruption Tolerant Networking and Applications
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DTN2 is a reference implementation of the Delay Tolerant Networking (DTN) architecture designed to validate DTN protocols. It can run on both Linux and Windows (through Cygwin) and includes a server component that provides DTN functionality through convergence layer adapters. To compile DTN2, the source code must be uncompressed, configured, and built. Configuration involves setting file paths, interfaces, links, and routes. Example applications include initializing the database, starting the server daemon, and sending/receiving bundles between nodes. More information and downloads are available on the DTN2 website.
Introduction to Delay/Disruption Tolerant Networking and Applications
- 1. Delay Tolerant Networking Software (DTN2) Weekly Meeting Friday, 06 Feb 2009 DTN-SG Muhammad Nasir Mumtaz Bhutta
- 2. DTN2 Introduction Reference implementation of DTN architecture. Designed to validate protocols design on DTN architecture. Available to Run on Windows as well as on Linux. For windows, first we have to install Cygwin and then DTN2 can run on Windows. DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta 2
- 3. Compiling DTN2 Linux Compilation $ gunzip -c DTN2-X.Y.Z.tgz | tar xvf $ cd DTN2 $ sh configure -C $ make Copy compiled files to different folders. Windows Installation Install Cygwin (A linux like environment) Compile using above commands. DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta 3
- 4. DTN2 Architecture Any application built on top of DTN2 DTN Application Provides DTN Architecture DTN2 Functionality Server DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta 4
- 5. DTN2 Server component Bundle Application Agent Service and private Control Interface Request Transmission of Bundle Bundle Protocol Agent { Data or Administrative Record } Transmission of Bundle and other operations Convergence Layer Adapters DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta 5
- 6. Configuration Directories Configuration Set the files path which DTN2 needs to run. /home/nasir/dtn (main directory to hold all directories and files). Copy dtn.conf file into this directory. /home/nasir/dtn/db (to keep information about to keep DTN2 daemon alive) /home/nasir/dtn/bundles (to store bundles in flight). DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta 6
- 7. Configuration Interfaces Set the convergence layer protocols to be used. i.e. TCP. Set the port number for protocol being to be used. Links and Routes Set the links and routes between communicating devices. Specify the type of bundles to forward on specified links. DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta 7
- 8. Some Example Applications for DTN2 First initialize the database, $ daemon/dtnd -c /home/fred/dtn/dtn.conf --init-db Start the Server (daemon thread), daemon/dtnd -c /home/fred/dtn/dtn.conf Now run any application to communicate with Daemon thread. $ ./dtnping localhost $ DTN2/apps/dtnsend/dtnsend -s dtn://dtn-a.dtn/me -d dtn://dtn-a.dtn/testing - t m -p "testing“ $ DTN2/apps/dtnrecv/dtnrecv dtn://dtn-a.dtn/testing DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta 8
- 9. Links for software Micheal Dammer, main person in development of DTN2. http://www.cs.berkeley.edu/~demmer/ To download software, http://sourceforge.net/project/showfiles. php?group_id=101657 More Implementations and Simulators, http://www.dtnrg.org/wiki/Code DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta 9