Some of our software is listed on this page... if the author cared to put a link here, that is... :)
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A quick-and-dirty syntax checker for SSFNet DML files. It just
checks those cases that SSFNet does not check; i. e., schemas are
ignored. You need the open source tool javacc
to create the .java files from the .jj file.
Then you can compile the .java files using
your favourite java compiler (typically javac)
Once compiled, use it from the command line like this:
$ java -classpath ...blahblah... Parser < inputFile.dml
Download Parser.jj, written by
Nils Kammenhuber
Ongoing work by Simon Fischer, Nils Kammenhuber, Sebastian Mohr,
Nataliya Skrypnyuk, and Tobias Schmidbauer. Includes multipath
balancing code, TTL-based routing, an universal framework for
(online) traffic engineering agents,
and implementations involving evolutionary game theory.
Work in progress.
Download patch against
Racesway SSFNet v2.0.
Install with these commands:
cd /home/bla/bla/bla/original-and-unchanged-ssfnet-as-downloaded-from-ssfnet.org-2.0/ ; zcat /home/bla/bla/bla/ssfnet-pstara-mpls-replex-wwg-application.patch.gz | patch -p1
(Note the path for the cd command!)
Contains the following SSFNet extensions written at our TU München research group:
SSF.Net.WeightedRoutingTable)src/SSF/OS/selfish/experiments/rocketfuel (see below)SSF.OS.WWG; see below)SSF.OS.mpls; see below)SSF.OS.Application; warning:
work in progress ― not yet capable to deal with simulations running on multiple CPU cores!)SSF.OS.WWG patch below! (In fact, it probably will not work anyway...)
Work by Simon Fischer and Nils Kammenhuber — please inquire latest version by e-mail
A Perl module that reads a
Rocketfuel
network topology map (i.e., a .cch file, which can be a bit
tedious to parse) and stores the
topology data in an object data structure, consisting of Host
and Link objects.
rocketfuel.pm (Version: October 2006), written by Nils Kammenhuber
A Perl script that reads a Rocketfuel map using the Perl module
rocketfuel.pm, and that converts it into a SSFNet DML scenario
description file consisting of
OSPFv2-connected (backbone) routers and/or routers with networks representing
access and external routers. The DML produced is quite generic; thus,
arbitrary workload clouds can be used without the need to modify the script.
The script is constantly evolving over time; if you are interested in the
newest version do not hesitate to inquire it via e-mail.
Written by Nils Kammenhuber.
When writing debugging output etc. from lower-layer classes such as routing tables, it is usually much easier to print an IP address than to print the corresponding NHI address. This can be quite unfortunate, since in debugging, it is usually a lot easier to identify a host by its DML-configured NHI address and not by some IP address which SSFNet chose "at random".
The Perl script translateIPs parses SSFNet
output, reads in the mapping table
which SSFNet prints out before the simulation run starts, and uses this
table to replace any occurence of an IP address within further SSFNet output
by the string IP address[NHI address]. In other words,
it translates (SSFNet-assigned) IP addresses to the NHI addresses which the
user had assigned in the DML file.
Remarks:
Developed by Thomas Krämer as a Diploma thesis (supervisor: Olaf Maennel, Anja Feldmann). An implementation of Multi-protocol label switching (MPLS) for the SSFNet simulator. The code is heavily based on the MPLS implementation of GLASS — in principle, it is a "back-port" of MPLS from the GLASS extension back to the orginal SSFNet. This allows MPLS to be used with routing protocols such as OSPFv2 or BGP4.
Code ported to SSFNet v2.0 by Nils Kammenhuber.
N.B. Code includes Christian Vollmert's Web Workload Generator SSF.OS.WWG (see below). There is no need to apply both patches!
src/ subdirectory.)
Developed and evaluated by Christian Vollmert as a Bachelor thesis
(supervisors: Nils Kammenhuber, Jörg
Wallerich). A new implementation of a web workload generator (WWW clients,
WWW servers, framework for WWW proxies) based on an extended SURGE model.
Well-documented code.
Download
Web-Workload-Generator-Patch against SSFNet 2.0 (please consider
using one of the patches above instead)
Download Christian Vollmert's corresponding Bachelor Thesis as...
.pdf or as
.ps.gz
Download Christian Vollmert's final presentation
as .ppt (in German!)
Developed by Nils Kammenhuber. Dynamic monitoring of the number of search
hits on individual nodes of a large tree-shaped graph, under the constraint
that only a very small number of nodes can be monitored at a time.
Ongoing joint work with Lukas Kencl (Intel Research) — please inquire latest
code by mail.
Download EaC algorithm and simulation
framework
Download utilities and example files
Version: September 2004.
Developed by Andreas Hartl as a Systementwicklungsprojekt
(systems development project); supervised by Nils Kammenhuber.
A graphical editor for DML files (network and
simulation scenario descriptions for the SSFNet network simulator).
Download DMLEditor.jar (version: september 2004)
Download Andreas' documentation (PDF)
Developed by Nils Kammenhuber. Uses an algorithm by
Krysta/Sanders/Vöcking that yields an optimal solution for the
k-splittable scheduling problem. Implemented in Java. Runs
with JDK 1.3 and above, possibly with JDK 1.2 also (not tested).
Documentation included with the tgz file.
Download ksplit.tgz (version: march 2004)
Developed by Nils Kammenhuber. Reads in IPv4 addresses, inserts them into
a huge binary prefix tree, and outputs all network prefixes formed by the
individual IPs. Tuneable heuristics can be used to ignore "gaps" within a
network (so as to avoid unneccessary prefix fragmentation).
Download ips2networks.tgz (version: october 2003)
Developed by Philipp Walter, Amit Aggarwal, Tarun Aggarwal, Sumit Chopra,
and Nils Kammenhuber. Allows to specify server probabilities and
monitor events in SSFNet's httpClient.
Download
Developed by Philipp Walter. Needed to analyze the results gained from
the httpClientMonitors from the SSFNet patch above with
the GNU R statistical evaluation software.
Download