open-source routing and network simulation _ open-source network simulators

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7/ 28/2014 Open-Source Routing and Netw ork Simulat ion | Open-Source Netw ork Simul ators ht tp: //w w w.brianl i nk l et ter. com/ open-source-network -simul ators/ 1/15 Op en-Source R ou ti ng and Network Simulation Open-Source Network Simulators This is a list of open-source network simulators and network emulators that run on Linux or BSD. Please post a comment on this page to let me know about any other open-source network simulation tools I did not include in this list. Clooni x The Cloonix network simulator provides a relatively easy-to-use graphical user interface. Cloonix recommends KVM to create virtual machines but it also supports other virtualization technologies. Cloonix prov ides a wide var iety of pre-b uilt filesystems that can be used as v irtual machines and provides simple instructions for creating other virtual machine root filesystems. Cloonix has an active development team, who update the tool every two or three months and who are very responsive to user input. URL: http://clownix.net Evaluated: Yes. Click her e to see posts. CORE

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    Open-Source Routing and Network

    Simulation

    Open-Source Network Simulators

    This is a list of open-source network simulators and network emulators that run on Linux or BSD. Please

    post a comment on this page to let me know about any other open-source network simulation tools I didnot include in this list.

    Cloonix

    The Cloonixnetwork simulator provides a relatively

    easy-to-use graphical user interface. Cloonix

    recommends KVM to create virtual machines but it

    also supports other virtualization technologies.

    Cloonix provides a wide variety of pre-built

    filesystems that can be used as virtual machinesand provides simple instructions for creating other

    virtual machine root filesystems. Cloonix has an

    active development team, who update the tool

    every two or three months and who are very

    responsive to user input.

    URL: http://clownix.net

    Evaluated: Yes. Click hereto see posts.

    CORE

    http://www.brianlinkletter.com/tag/cloonix/http://www.brianlinkletter.com/http://www.brianlinkletter.com/http://feeds.feedburner.com/brian-linkletter-open-source-routing-bloghttp://www.linkedin.com/in/brianlinkletterhttp://www.twitter.com/BELinkletterhttp://www.brianlinkletter.com/tag/cloonix/http://clownix.net/http://www.brianlinkletter.com/tag/cloonix/http://www.brianlinkletter.com/
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    The Common Open Research Emulator (CORE)

    provides a GUI interface and uses the Network

    Namespaces functionality in Linux Containers

    (LXC) as a virtualization technology. This allows

    CORE to start up a large number of virtual

    machines quickly. CORE supports the simulation

    of fixed and mobile networks.

    CORE will run on Linux and on FreeBSD. CORE isa fork of the IMUNES network simulator, and it

    adds some new functionality compared to

    IMUNES.

    URL: http://cs.itd.nrl.navy.mil/work/core/index.php

    Evaluated: Yes. Click hereto see posts.

    GNS3

    GNS3is a graphical network simulator focused

    mostly on supporting Cisco and Juniper software.

    GNS3 has a large user base, made up mostly of

    people studying for Cisco exams, and there is a

    lot of information freely available on the web about

    using GNS3 to simulate Cisco equipment.

    GNS3 can also be used to simulate a network

    composed exclusively of VirtualBox and/or Qemu

    virtual machines running open-source software.GNS3 provides a variety of prepared open-source

    virtual appliances, and users can create their own.

    URL: http://www.gns3.net

    Evaluated: Yes. Click hereto see posts.

    IMUNES

    http://www.brianlinkletter.com/tag/GNS3/http://www.gns3.net/http://www.brianlinkletter.com/tag/GNS3/http://www.brianlinkletter.com/tag/core/http://cs.itd.nrl.navy.mil/work/core/index.phphttp://www.brianlinkletter.com/tag/core/
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    A team of researchers at the University of Zagreb

    developed the Integrated Multi-protocol Network

    Emulator/Simulator (IMUNES)for use as a

    network research tool. IMUNES runs on the

    FreeBSD operating system and uses the kernel-

    level network stack virtualization technology

    provided by FreeBSD.

    IMUNES supports a graphical user interface. Itappears to work well and offers good performance,

    even when running IMUNES on a FreeBSD system

    running in a VirtualBox virtual machine.

    URL: http://www.imunes.tel.fer.hr/or

    http://www.imunes.net

    Evaluated: Yes. Click hereto see posts.

    Marionnet

    Marionnetis called a virtual network laboratory on

    its website. It allows users to define, configure and

    run complex computer networks on a host

    computer. It can simulate an Ethernet network

    complete with computers, routers, hubs, switchs,

    cables, and more. Marionnet seems designed to

    be used as an education tool and has an attractive

    graphical user interface, and some sample

    practice lab configurations. Marionnet does notprovide a user manual but the user interface is

    fairly intuitive.

    URL: http://www.marionnet.org/EN/

    Evaluated: Yes. Click hereto see posts.

    Mininet

    http://www.brianlinkletter.com/tag/marionnet/http://www.marionnet.org/EN/http://www.brianlinkletter.com/tag/marionnet/http://www.brianlinkletter.com/tag/imunes/http://www.imunes.net/http://www.imunes.tel.fer.hr/http://www.brianlinkletter.com/tag/imunes/
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    Mininetis designed to support research in

    Software Defined Networking technologies. It uses

    Linux network namespaces as its virtualization

    technology to create virtual switches and virtual

    nodes. The web site indicates that the tool can

    support thousands of virtual nodes on a single

    operating system. Mininet is most useful to

    researchers who are building SDN controllers and

    need a tool to verify the behavior and performanceof SDN controllers. Knowledge of the Python

    scripting language is very useful when using

    Mininet.

    The Mininet project provides excellent documentation and, judging from the activity on the Mininet mailing

    list, the project is actively used by a large community of researchers.

    URL: http://www.mininet.org

    Evaluated: Yes. Click hereto see posts.

    Netkit

    Netkitis a command-line based simulation tool

    that uses user-mode Linux to create the virtual

    machines. A full Linux OS can run on each

    machine. It has good documentation and the

    projects web site has a long list of interesting lab

    scenarios to practice, with documentation for each

    scenario. It also appears to be actively supportedby a small community and was last updated in

    2011.

    URL: http://wiki.netkit.org

    Evaluated: Yes. Click hereto see posts.

    Psimulator2

    Psimulator2is a basic graphical network simulatorthat may be used to demonstrate basic IP

    networking concepts to students. It is not a fully-

    functional simulator because only a small sub-set

    of normal networking functionality is supported on

    each emulated node.

    It will run on any system that supports Java;

    including Windows, Mac OS, and Linux. It offers

    the ability to capture and play back data traffic

    generated by the simulation. The packets are

    http://www.brianlinkletter.com/tag/Psimulator2/http://www.brianlinkletter.com/tag/netkit/http://wiki.netkit.org/http://www.brianlinkletter.com/tag/netkit/http://www.brianlinkletter.com/tag/mininet/http://www.mininet.org/https://mailman.stanford.edu/mailman/listinfo/mininet-discusshttp://www.brianlinkletter.com/tag/mininet/
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    displayed on the GUI as envelopes that move through the network.

    URL: http://code.google.com/p/psimulator/

    Evaluated: Yes. Click hereto see posts.

    Virtualsquare

    Virtualsquareis an interesting effort to create a virtual network tool. The developers are building their own

    tools to create virtual networks, instead of re-using tools available in the common Linux distributions.

    There are no prepared labs available so users will have to learn the tool before creating lab scenarios for

    themselves. The project is well documented. It looks like a research project and Linux kernel or

    programming skills may be required to fully appreciate it. Virtualsquare is also the source of the Virtual

    Distributed Ethernet(VDE) program. VDE is used in some of the other network simulation tools.

    URL: http://wiki.virtualsquare.org/wiki/index.php/Main_Page

    Evaluated: Not yet

    VNX and VNUML

    VNXsupports two different virtualization

    techniques and uses an XML-style scripting

    language to define the virtual network. It also

    supports chaining multiple physical workstations

    together to support distributed virtual labs that

    operate across multiple physical workstations. It is

    supported by a small community and has been

    updated within the past year.

    VNX replaces VNUML. The old VNUML web site

    stil l has sample labs and other content that would

    be useful when using VNX.

    URL: http://www.dit.upm.es/vnx

    Evaluated: Yes. Click hereto see posts.

    24 responses to Open-Source Network Simulators

    Vincent Perrier March 18, 2013 at 5:13 am

    I cannot wait for all the missing evaluations, this web site does exactly what I wanted to do

    but failed to find the time for it.

    http://www.brianlinkletter.com/tag/vnx/http://www.dit.upm.es/vnxhttp://www.brianlinkletter.com/open-source-network-simulators/www.dit.upm.es/vnumlhttp://www.brianlinkletter.com/tag/vnx/http://wiki.virtualsquare.org/wiki/index.php/Main_Pagehttp://wiki.virtualsquare.org/wiki/index.php/VDEhttp://wiki.virtualsquare.org/wiki/index.php/Main_Pagehttp://www.brianlinkletter.com/tag/Psimulator2/http://code.google.com/p/psimulator/
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    The wording: simulation could be replaced by emulation, it would be good to add details

    about the difference between network simulations (based on ns3 for example) that change

    the time base (1 mn simulation is done in a much longer duration) and the network

    emulation that are based on virtualisation and work in real time.

    I am not even sure about my own vision of these word definitions (emulation, and simulation),

    clearer definitions could be put on this web site. I like simulation more than emulation, so it

    may be a good thing to keep calling the network emulation network simulation, in the end

    the technical meaning of the word will cover both real time and non-real time way to

    simulate.Hit ns3+opnet+time+simulation in google to see about usual meaning of simulation.

    Reply

    Brian LinkleterMarch 18, 2013 at 7:38 pm

    Hi Vincent,

    You are correct that the tools I am working with are mostly related to emulation, not

    simulation. Looking at the Google Analytics information for this site, I see that the

    search terms most people use to find this site are the terms, network simulation or

    network simulator. Very few people seem use the search term, network emulation.

    I agree with you that using the term network simulation to describe both emulation

    and simulation is an acceptable way to make this topic more accessible to searchers,

    even if it is not really an accurate way to describe the tools.

    Thanks,

    Brian

    Reply

    Vincent PerrierApril 17, 2013 at 4:09 am

    The official simulation has for main goal to reduce the cpu/ram resources use in the study

    of large scale topologies. The cpu and ram will not be a problem in a few years and

    emulation will probably replace simulation in the end, the merge has already began:

    http://www.nsnam.org/docs/release/3.11/models/html/emulation-overview.html

    So I agree, the word simulation should cover both methods.

    Reply

    Mike Wills May 22, 2013 at 10:55 am

    Brian this is a very interesting roundup of open source systems youve got here. I was

    really intrigued by Marionet, but my problem is that I want to build a course that needs to

    deal with students who are most likely running Windows based machines (I cant help it. )

    Other than GNS3 do you know of a system that seems straightforward, friendly, and not

    so tied to a particular vendors certification training, that can be used in an introductory

    networks course?

    Thanks!

    http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=3656#respondhttp://www.nsnam.org/docs/release/3.11/models/html/emulation-overview.htmlhttp://www.brianlinkletter.com/open-source-network-simulators/?replytocom=3242#respondhttp://www.brianlinkletter.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=3207#respond
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    Reply

    Brian LinkleterMay 23, 2013 at 9:03 am

    Hi Mike,

    Thanks for your question.

    Based on what I know about all the tools in this list, I think that GNS3 is the onlysystem that will work on Windows. However, I was able to run most of the tools I

    reviewed (and Ive reviewed about half the tools in this list so far) in a virtual machine and

    the virtual machine will run on VirtualBox in Windows.

    For the case you describe, and assuming you want a tool that has a GUI, I would also

    recommend either IMUNES or the CORE Network Emulator running on a FreeBSD

    system in a VirtualBox virtual machine on MS Windows. The instructor will have to do

    some work to create the system and simplify the desktop setup so that the complexities

    of using an unfamiliar operating system are hidden from the students but as soon as

    IMUNES or CORE is started, the students will be using the application and not worrying

    about running Unix BSD Unix commands. While this solution is not really straightforwardand simple, I believe that the instructor can set it up so that, from the students point of

    view, it appears to be acceptably straightforward and simple.

    Thanks,

    Brian

    Reply

    Vijay Murugesan March 15, 2014 at 7:45 pm

    This is a great article and information for people who are like me (Developers by nature but

    still want to have a edge on the networking concepts). Im going to recommend this to all my

    team. I feel bad I have missed it for so long.

    Reply

    Brian LinkleterMarch 15, 2014 at 9:07 pm

    Hi Vijay,

    Thanks for your interest in this blog. I have almost completed my survey of open-source

    network simulators so, over the next few months, I will begin discussing examples ofsimulated networking scenarios. I hope you and your team will find this blog to be useful.

    Brian

    Reply

    DavidApril 21, 2014 at 3:54 am

    Hi,

    Have you tested Live Raizo, an Linux environnement based on GNS3 ?

    http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=11470#respondhttp://www.brianlinkletter.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=11467#respondhttp://www.brianlinkletter.com/open-source-network-simulators/?replytocom=4134#respondhttp://www.brianlinkletter.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=4120#respond
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    (http://sourceforge.net/projects/live-raizo/ )

    Reply

    Brian LinkleterApril 21, 2014 at 11:02 am

    Hi David,

    Yes, I tried Live Raizo. It offers GNS3 installed on a basic Linux system in a Live USB or

    Live CD disk image. It also offers a useful selection of other Linux software and tools pre-

    installed.

    Thanks,

    Brian

    Reply

    David May 19, 2014 at 9:43 am

    I have tested it. It does a little more There has several VirtualBox Linux whose are

    completely integrated with gns3, and these VMs have already many networks tools

    installed.

    Reply

    David June 26, 2014 at 1:05 pm

    Hi,

    I will wish just your feedbacks on Live Raizo.

    With your little description, i believe that you think that Raizo is just a Live where

    GNS3/Qemu/VirtualBox are already installed and if you want use it, you must

    configured a lot of things.

    But, Live Raizo can do more : 18 Debian Linux VM are created and fully integrated

    into GNS3/VirtualBox. These VM have same softwares that NetKit (which was

    installed on the first releases of Raizo).

    Without configuring anything, you can do the same things that with Cloonix or NetKit

    (with VisualNetkit).

    One of its advantages is that nothing is installed, modified or deleted on your own OS.

    One of its drawbacks is that all is lost if you dont save.

    David

    PS : I think that your contact email on privacy-policy page doesnt work.

    Reply

    Brian LinkletterJune 26, 2014 at 11:58 pm

    Hi David,

    http://www.brianlinkletter.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=15894#respondhttp://www.brianlinkletter.com/open-source-network-simulators/?replytocom=14539#respondhttp://www.brianlinkletter.com/open-source-network-simulators/?replytocom=13393#respondhttp://www.brianlinkletter.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=13380#respondhttp://sourceforge.net/projects/live-raizo/
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    Thanks. I fixed my contact e-mail address. And, thanks for the extra information

    about Live Raizo.

    I think Live Raizois a good project. Projects like Live Razio and GNS3

    Workbenchprovide an installation of GNS3 along with supporting filesystems

    (with all necessary software pre-installed) and prepared lab scenarios are a great

    way for people to become familiar with using GNS3 without having to install and

    configure GNS3 on their PC. They also make it easier to use GNS3 to build

    simulation scenarios.

    I notice the both Live Raizo and GNS3 Workbench are prominently featured on

    the GNS3 web site.

    Thanks,

    Brian

    Reply

    Larry LevinJune 17, 2014 at 2:49 pm

    Brian:

    You have a great resource here. Thanks for making all this info available. Ive been looking for

    an open source network emulator to suit my needs and was hoping I could get your opinion.

    I want to connect openNMS to an emulator and then have the emulator run simple scenarios

    that present a network admin with various types of problems to diagnose and correct. Any

    suggestions would be most appreciated.

    Thanks

    Larry

    Reply

    Brian LinkletterJune 17, 2014 at 9:18 pm

    Hi Larry,

    Thanks for your question.

    I think you should use a network emulator that runs either KVM or user-mode linux. So

    use either Cloonix or Netkit. These emulators will let you install the software you need

    on each virtual machine (especially an SNMP agent and MIBs).

    Thanks,

    Brian

    Reply

    Larry LevinJune 18, 2014 at 8:33 am

    Brian:

    Thanks for the feedback. I had been thinking about trying CORE but I will take a close

    look at Cloonix and Netkit as you suggest. Ill let you know how it goes.

    Thanks again

    Larry

    http://your-new-head.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=15656#respondhttp://www.brianlinkletter.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=15646#respondhttp://your-new-head.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=15908#respondhttp://www.gns3.net/appliances/http://rednectar.net/gns3-workbench/http://sourceforge.net/p/live-raizo/wiki/Home/
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    Reply

    Brian LinkletterJune 18, 2014 at 9:11 am

    Larry,

    Thanks.

    I think the main issue is virtualization of the file system. Ive not had to set up

    MIBs on a lInux box so I do not know if CORE creates a namespace for thedirectories used by SNMP. Cloonix and Netkit use KVM and user-mode-linux,

    respectively and those technologies virtualize the full filesystem and allow you to

    save the changes to the files for future use.

    Brian

    Reply

    David June 19, 2014 at 8:10 am

    Hi,

    You can use also GNS3 who can easily incorporate your own VirtualBox VMs.

    You dont need IOS Cisco to use GNS3.

    Brian LinkletterJune 21, 2014 at 11:47 pm

    Good point, David! GNS3 would also be a good tool for this case. I have a few

    posts on using open-source routers in GNS3. Click on the GNS3 tag to find

    them.

    Brian

    Larry LevinJune 23, 2014 at 8:55 am

    Brian/David:

    Thanks for all the feedback. I had posted the same question on an openNMS forum and

    gotten zero responses so I really appreciate the info being provided here.

    Regarding GNS3, I was under the impression its main focus is providing a high-fidelity

    replication of Cisco and Juniper routers and enterprise-level WANs. By high-fidelity I mean

    something detailed enough that it can be used as a study aide for somebody trying to getcertified by Cisco or Juniper. I think for my needs the best fit will be something that is fairly

    broad in scope (e.g. can emulate anything from SOHO LAN to a global grid) but where

    fidelity is less important than flexibility and ease of use. The idea is to get a basic network

    emulation going and than interface to it via openNMS. I wondering if using GNS3 may force

    me to go deeper into IOS and/or JUNOS that I want.

    My understanding is that Cloonix is pretty easy to set up and use, allows the use of

    standard Linux networking tools (e.g., ping, traceroute, etc) and, if desired, has support for

    emulating cisco routers with some reasonable fidelity. If that is correct, Im thinking Ill try it

    first.

    http://your-new-head.com/http://www.brianlinkletter.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=15672#respondhttp://www.brianlinkletter.com/http://www.brianlinkletter.com/open-source-network-simulators/?replytocom=15671#respond
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    - Larry

    Reply

    Brian LinkletterJune 23, 2014 at 11:46 am

    Hi Larry,

    I prefer cloonix for working with open-source routers, in the case where full-stackvirtualization is needed (using KVM).

    GNS3 will work with open-source routers but, as you observed, its primary purpose is to

    support Cisco router images and its management of open-source routers relies on

    VirtualBox (which is OK but takes more steps to set up each unique virtual machine

    disk image).

    Both cloonix and GNS3 provide high-fidelity network simulation because they allow you

    to work with virtual machines running real networking software. Cloonix is more

    streamlined for use with open-source routers and other open-source software, which I

    think fits better with your use-case for working with OpenNMS.

    Thanks for your questions!

    Brian

    Reply

    David June 23, 2014 at 12:06 pm

    Hi,

    You dont need to install or/and configure Cisco/Juniper to use GNS3Look the first screen of Live Raizo here (http://sourceforge.net/projects/live-raizo/ ) which

    uses GNS3, it is only Debian Linux.

    And i think that GNSs interface is more beautiful than Cloonixs interface

    Reply

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    Install the CORE Network Emulator from source code

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    Google Webmaster Tools

    Persistent configuration changes in TinyCore Linux

    Psimulator2 a graphical network simulator

    Marionnet: X configuration in Knoppix

    Using open-source routers in GNS3

    GNS3: Qemu or VirtualBox?

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    VNX Linux Network Simulator Review

    Install the VNX network simulator

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    Installing the CORE Network Emulator in Ubuntu Linux

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