Delay Tolerant Networking Software (DTN2)

Weekly Meeting Friday, 06 Feb 2009DTN-SG Muhammad Nasir Mumtaz Bhutta

DTN-SG Meeting 26-September-2008 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

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.

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DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta

DTN2 Architecture

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DTN2 Application

DTN2 Server

Provides DTNArchitecture Functionality

Any application

built on top of DTN

DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta

DTN2 Server component

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Request Transmission of

Bundle { Data

or Administrative Record }

Bundle Application Agent

Bundle Protocol Agent

Service and private Control Interface

Transmission of Bundle and

other operations

Convergence Layer Adapters

DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta

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).

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DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta

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. 7

DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta

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

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DTN-SG Meeting 26-September-2008 Muhammad Nasir Mumtaz Bhutta

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.p

hp?group_id=101657

More Implementations and Simulators, http://www.dtnrg.org/wiki/Code 9