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USE CONTAINERLAB TO EMULATE OPEN-SOURCE ROUTERS Use Containerlab to emulate open-source routers. Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images availablefrom the major
BUILD YOUR OWN NETWORK SIMULATOR USING OPEN-SOURCE DEVOPS Open-source DevOps tools are used to deploy applications and services in datacenter server networks, but they may also enable researchers or students to simulate networks. In this post, we will survey popular open-source DevOps tools and provide links to information that shows how to use them to create network simulation scenarios. HOW TO BUILD A NETWORK OF LINUX ROUTERS USING QUAGGA Then, edit the /etc/environment file: # nano /etc/environment. Then add the following line to the end of the file: VTYSH_PAGER=more. Save the file and quit the editor. Start the Quagga shell with the command vtysh on Router-1: # vtysh. Enter the following Quagga commands: configure terminal router ospf network 192.168.1.0/24 area 0 network192
HOW TO EMULATE A NETWORK USING VIRTUALBOX VirtualBox is an open-source virtual machine manager and hypervisor that may also be used as a network emulator. In addition to creating and managing individual virtual machines, VirtualBox can connect virtual machines together to emulate a network of computers and network appliances such as routers or servers. INSTALLING THE CORE NETWORK EMULATOR IN UBUNTU LINUX To test that everything works, try some of the steps outlined in the CORE Network Emulator test drive post. Or, open a sample topology file. For example, sample3-bgp.imn.In the CORE GUI menu, click on the commands, File → Open and select the file, sample3-bgp.imn. To quit the CORE Network Emulator, stop the lab session by clicking on the red Stop the Session button on the GUI or use the MININET NETWORK SIMULATOR REVIEW Mininet network simulator review. The Mininet open-source network simulator is designed to support research and education in the field of Software Defined Networking systems. Mininet creates a simulated network that runs real software on the components of the network so it can be used to interactively test networking software. LENOVO THINKPAD T420: ANOTHER EXCELLENT, INEXPENSIVE LINUX I recently purchased a used Lenovo Thinkpad T420 laptop to replace the Lenovo Thinkpad T400 I was previously using as my main platform for researching open-source network simulators and emulators. The T420 is a five-year old product but it offers all the ports and performance I need. Because it is well past its depreciation curve, anyone can purchase a used T420 for a very low price. HOW TO USE MINIEDIT, MININET’S GRAPHICAL USER INTERFACE The Mininet network simulator includes MiniEdit, a simple GUI editor for Mininet.MiniEdit is an experimental tool created to demonstrate how Mininet can be extended. To show how to use MiniEdit to create and run network simulations, we will work through a tutorial that demonstrates how to use MiniEdit to build a network, configure network elements, save the topology, and run the simulation. OPEN-SOURCE ROUTING AND NETWORK SIMULATIONUSING THE OPENDAYLIGHT SDN CONTROLLER WITH THE MININET NETWORK EMULATOROFNET Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images available from the major networking vendors. OPEN SOURCE NETWORKING Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images availablefrom the
USE CONTAINERLAB TO EMULATE OPEN-SOURCE ROUTERS Use Containerlab to emulate open-source routers. Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images availablefrom the major
BUILD YOUR OWN NETWORK SIMULATOR USING OPEN-SOURCE DEVOPS Open-source DevOps tools are used to deploy applications and services in datacenter server networks, but they may also enable researchers or students to simulate networks. In this post, we will survey popular open-source DevOps tools and provide links to information that shows how to use them to create network simulation scenarios. HOW TO BUILD A NETWORK OF LINUX ROUTERS USING QUAGGA Then, edit the /etc/environment file: # nano /etc/environment. Then add the following line to the end of the file: VTYSH_PAGER=more. Save the file and quit the editor. Start the Quagga shell with the command vtysh on Router-1: # vtysh. Enter the following Quagga commands: configure terminal router ospf network 192.168.1.0/24 area 0 network192
HOW TO EMULATE A NETWORK USING VIRTUALBOX VirtualBox is an open-source virtual machine manager and hypervisor that may also be used as a network emulator. In addition to creating and managing individual virtual machines, VirtualBox can connect virtual machines together to emulate a network of computers and network appliances such as routers or servers. INSTALLING THE CORE NETWORK EMULATOR IN UBUNTU LINUX To test that everything works, try some of the steps outlined in the CORE Network Emulator test drive post. Or, open a sample topology file. For example, sample3-bgp.imn.In the CORE GUI menu, click on the commands, File → Open and select the file, sample3-bgp.imn. To quit the CORE Network Emulator, stop the lab session by clicking on the red Stop the Session button on the GUI or use the MININET NETWORK SIMULATOR REVIEW Mininet network simulator review. The Mininet open-source network simulator is designed to support research and education in the field of Software Defined Networking systems. Mininet creates a simulated network that runs real software on the components of the network so it can be used to interactively test networking software. LENOVO THINKPAD T420: ANOTHER EXCELLENT, INEXPENSIVE LINUX I recently purchased a used Lenovo Thinkpad T420 laptop to replace the Lenovo Thinkpad T400 I was previously using as my main platform for researching open-source network simulators and emulators. The T420 is a five-year old product but it offers all the ports and performance I need. Because it is well past its depreciation curve, anyone can purchase a used T420 for a very low price. HOW TO USE MINIEDIT, MININET’S GRAPHICAL USER INTERFACE The Mininet network simulator includes MiniEdit, a simple GUI editor for Mininet.MiniEdit is an experimental tool created to demonstrate how Mininet can be extended. To show how to use MiniEdit to create and run network simulations, we will work through a tutorial that demonstrates how to use MiniEdit to build a network, configure network elements, save the topology, and run the simulation. OPEN-SOURCE ROUTING AND NETWORK SIMULATION Latest News. May 5, 2021. FRRouting recently added a set of YANG models with a GRPC support, which should enable researchers to experiment with modern network automation tools on an open-source router.. Older news is archived on the Network Simulator News page.. List of Network Simulators and Emulators. This is a list of open-source network simulators and network emulators SET UP GNS3 WITH OPEN-SOURCE ROUTERS GNS3 is a very popular network simulation tool that runs on the major operating systems: Windows, Mac OS, and Linux. GNS3 is primarily used to emulate networks of Cisco routers and is used by professionals studying for Cisco certification exams.. GNS3 supports Cisco router software images running on the Dynamips hardware emulation program. GNS3 also supports other hardware emulationINSTALLING NETKIT
We will install the Netkit open-source network simulator on an Ubuntu Linux 12.04 system that is installed on a virtual machine on my iMac. As I’ve mentioned before, running Linux in a virtual machine on a Windows or a Mac is a convenient way to experiment with CORE NETWORK EMULATOR SERVICES OVERVIEW CORE Services is a feature of the CORE Network Emulator — an open-source network simulator — that configures and starts processes on each node running in a network simulation. Examples of processes supported by CORE Services are: quagga, dhcpd, or radvd. Because the CORE Network Emulator implements its virtual nodes using a lightweight virtualization technology called Linux namespaces, we INSTALL AZURE CLI ON YOUR ANDROID PHONE Install Azure CLI in the virtual environment: (azure-cli) $ pip install cffi (azure-cli) $ pip install azure-cli. Be patient. It takes a very long time to install the azure-cli package because it is compiling some of the dependencies. It took about twenty minutes to install on my phone. CAPTURE DATA ON OPEN-SOURCE ROUTER INTERFACES IN GNS3 The Preconfigured packet capture reader commands menu allows you to set the type of Wireshark packet capture display: Traditional or Live.. Traditional packet capture will write captured packets to a file and displays them in Wireshark only when the user presses the “refresh” button in Wireshark. This is the default setting. Live packet capture also writes captured packets to a file and itPSIMULATOR2
Psimulator2 is a basic graphical network simulator created and used by the Czech Technical University in Prague, Faculty of Information Technology to teach basic networking topics. It will run on any system that supports Java, including Windows, Mac OS, and Linux. MININET NETWORK SIMULATOR REVIEW Mininet network simulator review. The Mininet open-source network simulator is designed to support research and education in the field of Software Defined Networking systems. Mininet creates a simulated network that runs real software on the components of the network so it can be used to interactively test networking software. RUN A SCRIPT ON VIRTUAL MACHINES WHEN THE HOST IS SHUT I want to show you how to configure a host server so, when it is shut down, it executes a script that runs commands on any running virtual machines before the host tries to stop them. I PERSISTENT CONFIGURATION CHANGES IN TINYCORE LINUX Persistence in TinyCore. TinyCore Linux runs in RAM so all changes made while the system is running will be lost after a system reboot unless the user takes action to back up the configuration changes. The TinyCore Linux filetool.sh script provides the backup function that supports persistence. The script backs up files created in the /optand
OPEN-SOURCE ROUTING AND NETWORK SIMULATIONUSING THE OPENDAYLIGHT SDN CONTROLLER WITH THE MININET NETWORK EMULATOROFNET Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images available from the major networking vendors. OPEN SOURCE NETWORKING Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images availablefrom the
OPEN-SOURCE ROUTING AND NETWORK SIMULATION Latest News. May 5, 2021. FRRouting recently added a set of YANG models with a GRPC support, which should enable researchers to experiment with modern network automation tools on an open-source router.. Older news is archived on the Network Simulator News page.. List of Network Simulators and Emulators. This is a list of open-source network simulators and network emulators that USE CONTAINERLAB TO EMULATE OPEN-SOURCE ROUTERS Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images available from the major networking vendors. OPEN-SOURCE ROUTING AND NETWORK SIMULATION The Domain Name System (DNS) is a fundamental Internet technology. Network emulators like Cloonix offer a way for researchers and students to experiment with the DNS protocol and with the various open-source implementations of DNS, such as BIND.. In this post, I will install Cloonix from the Github source code repository. I will run the Cloonix DNS demo script to create a simple DNS scenario CORE NETWORK EMULATOR SERVICES OVERVIEW CORE Services is a feature of the CORE Network Emulator — an open-source network simulator — that configures and starts processes on each node running in a network simulation. Examples of processes supported by CORE Services are: quagga, dhcpd, or radvd. Because the CORE Network Emulator implements its virtual nodes using a lightweight virtualization technology called Linux namespaces, we INSTALLING THE CORE NETWORK EMULATOR IN UBUNTU LINUX To test that everything works, try some of the steps outlined in the CORE Network Emulator test drive post. Or, open a sample topology file. For example, sample3-bgp.imn.In the CORE GUI menu, click on the commands, File → Open and select the file, sample3-bgp.imn. To quit the CORE Network Emulator, stop the lab session by clicking on the red Stop the Session button on the GUI or use the HOW TO EMULATE A NETWORK USING VIRTUALBOX VirtualBox is an open-source virtual machine manager and hypervisor that may also be used as a network emulator. In addition to creating and managing individual virtual machines, VirtualBox can connect virtual machines together to emulate a network of computers and network appliances such as routers or servers. HOW TO BUILD A NETWORK OF LINUX ROUTERS USING QUAGGA This post lists the commands required on each node to build a network of three Ubuntu Linux routers. Each router is connected to the other two routers and is running quagga.Each router is also connected to a PC running Ubuntu Linux. LENOVO THINKPAD T420: ANOTHER EXCELLENT, INEXPENSIVE LINUX I recently purchased a used Lenovo Thinkpad T420 laptop to replace the Lenovo Thinkpad T400 I was previously using as my main platform for researching open-source network simulators and emulators. The T420 is a five-year old product but it offers all the ports and performance I need. Because it is well past its depreciation curve, anyone can purchase a used T420 for a very low price. OPEN-SOURCE ROUTING AND NETWORK SIMULATIONUSING THE OPENDAYLIGHT SDN CONTROLLER WITH THE MININET NETWORK EMULATOROFNET Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images available from the major networking vendors. OPEN SOURCE NETWORKING Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images availablefrom the
OPEN-SOURCE ROUTING AND NETWORK SIMULATION Latest News. May 5, 2021. FRRouting recently added a set of YANG models with a GRPC support, which should enable researchers to experiment with modern network automation tools on an open-source router.. Older news is archived on the Network Simulator News page.. List of Network Simulators and Emulators. This is a list of open-source network simulators and network emulators that USE CONTAINERLAB TO EMULATE OPEN-SOURCE ROUTERS Containerlab is a new open-source network emulator that quickly builds network test environments in a devops-style workflow. It provides a command-line-interface for orchestrating and managing container-based networking labs and supports containerized router images available from the major networking vendors. OPEN-SOURCE ROUTING AND NETWORK SIMULATION The Domain Name System (DNS) is a fundamental Internet technology. Network emulators like Cloonix offer a way for researchers and students to experiment with the DNS protocol and with the various open-source implementations of DNS, such as BIND.. In this post, I will install Cloonix from the Github source code repository. I will run the Cloonix DNS demo script to create a simple DNS scenario CORE NETWORK EMULATOR SERVICES OVERVIEW CORE Services is a feature of the CORE Network Emulator — an open-source network simulator — that configures and starts processes on each node running in a network simulation. Examples of processes supported by CORE Services are: quagga, dhcpd, or radvd. Because the CORE Network Emulator implements its virtual nodes using a lightweight virtualization technology called Linux namespaces, we INSTALLING THE CORE NETWORK EMULATOR IN UBUNTU LINUX To test that everything works, try some of the steps outlined in the CORE Network Emulator test drive post. Or, open a sample topology file. For example, sample3-bgp.imn.In the CORE GUI menu, click on the commands, File → Open and select the file, sample3-bgp.imn. To quit the CORE Network Emulator, stop the lab session by clicking on the red Stop the Session button on the GUI or use the HOW TO EMULATE A NETWORK USING VIRTUALBOX VirtualBox is an open-source virtual machine manager and hypervisor that may also be used as a network emulator. In addition to creating and managing individual virtual machines, VirtualBox can connect virtual machines together to emulate a network of computers and network appliances such as routers or servers. HOW TO BUILD A NETWORK OF LINUX ROUTERS USING QUAGGA This post lists the commands required on each node to build a network of three Ubuntu Linux routers. Each router is connected to the other two routers and is running quagga.Each router is also connected to a PC running Ubuntu Linux. LENOVO THINKPAD T420: ANOTHER EXCELLENT, INEXPENSIVE LINUX I recently purchased a used Lenovo Thinkpad T420 laptop to replace the Lenovo Thinkpad T400 I was previously using as my main platform for researching open-source network simulators and emulators. The T420 is a five-year old product but it offers all the ports and performance I need. Because it is well past its depreciation curve, anyone can purchase a used T420 for a very low price. OPEN-SOURCE ROUTING AND NETWORK SIMULATION Latest News. May 5, 2021. FRRouting recently added a set of YANG models with a GRPC support, which should enable researchers to experiment with modern network automation tools on an open-source router.. Older news is archived on the Network Simulator News page.. List of Network Simulators and Emulators. This is a list of open-source network simulators and network emulators SET UP GNS3 WITH OPEN-SOURCE ROUTERS GNS3 is a very popular network simulation tool that runs on the major operating systems: Windows, Mac OS, and Linux. GNS3 is primarily used to emulate networks of Cisco routers and is used by professionals studying for Cisco certification exams.. GNS3 supports Cisco router software images running on the Dynamips hardware emulation program. GNS3 also supports other hardware emulation BUILD YOUR OWN NETWORK SIMULATOR USING OPEN-SOURCE DEVOPS Open-source DevOps tools are used to deploy applications and services in datacenter server networks, but they may also enable researchers or students to simulate networks. In this post, we will survey popular open-source DevOps tools and provide links to information that shows how to use them to create network simulation scenarios.PSIMULATOR2
Psimulator2 is a basic graphical network simulator created and used by the Czech Technical University in Prague, Faculty of Information Technology to teach basic networking topics. It will run on any system that supports Java, including Windows, Mac OS, and Linux.IMUNES ON LINUX
The IMUNES open-source network simulator can now be installed on and run on Linux.Previously, IMUNES was available only for the FreeBSD operating system. The Linux version of IMUNES is ready to be used and can set up and run network emulation scenarios. ENABLE NESTED VIRTUALIZATION ON GOOGLE CLOUD Google Cloud Platform introduced nested virtualization support in September 2017. Nested virtualization is especially interesting to network emulation research since it allow users to run unmodified versions of popular network emulation tools like GNS3, EVE-NG, and Cloonix on a cloud instance.. Google Cloud supports nested virtualization using the KVM hypervisor on Linux instances. IMUNES NETWORK SIMULATOR TEST DRIVE The Integrated Multiprotocol Network Emulator/Simulator (IMUNES) is a fast, functional network simulator that runs on the FreeBSD operating system. It was created by a team of researchers and educators at the University of Zagreb.. The IMUNES development team offers a VirtualBox image of a FreeBSD system with IMUNES installed so it is easy to evaluate. . We will take a first look at IMUNES MININET-WIFI: SDN EMULATOR SUPPORTS WIFI NETWORKS Mininet-WiFi is a fork of the Mininet SDN network emulator.The Mininet-WiFi developers extended the functionality of Mininet by adding virtualized WiFi stations and access points based on the standard Linux wireless drivers and the 80211_hwsim wirelesssimulation driver.
HOW TO USE MINIEDIT, MININET’S GRAPHICAL USER INTERFACE The Mininet network simulator includes MiniEdit, a simple GUI editor for Mininet.MiniEdit is an experimental tool created to demonstrate how Mininet can be extended. To show how to use MiniEdit to create and run network simulations, we will work through a tutorial that demonstrates how to use MiniEdit to build a network, configure network elements, save the topology, and run the simulation. HOW TO SET UP THE UNETLAB OR EVE-NG NETWORK EMULATOR ON A EVE-NG and UNetLab are graphical network emulators that support both commercial and open-source router images. UNetLab is the current, stable version of the network emulator and EVE-NG is an updated version of the same tool, available as an alpha release.* About
* Open-Source Network Simulators* Citations
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OPEN-SOURCE ROUTING AND NETWORK SIMULATION VIDEO CHAT ABOUT NRE LABSJune 4, 2019
Yesterday, I participated in a screen-cast with Derick Winkworth, aka @CloudToad , to discuss my blog posts about installing NRE Labs Antidote network emulator on your PC and creating lessons for NRE Labs.
We also covered some general points like contributing to communities, how to get started blogging about technical topics, and more. Check itout, below:
This video, and other NRE Labs videosare
available on YouTube. Also, the NRE Labs team runs a live screen-cast every Monday at 1:00 PM using the Discord app. Join the NRE Labs Discord channel and engage in thediscussion.
In Network Automation,
Network Simulation
NRElabs
CREATE LAB LESSONS FOR THE NRE LABS ANTIDOTE NETWORK EMULATORMay 28, 2019
The Antidote network emulator , part of the Network Reliability Engineering project, offers a web interface that presents network emulation scenarios to users as documented lessons. Each lesson is presented in a window running Jupyter Notebooks and contains commands that the user can click on to run them on the virtual nodes in the network emulation scenario. The NRE Labs developers intend for Antidote to be used as an educational tool. Its lesson-focused user interface supports students’ learning progress. This post is a tutorial showing how to create and test two simple, but different, Antidote lessons.Continue Reading…
In Network Automation,
Network Simulation
, Open
Source Networking
Antidote , automation, emulation
, NRElabs
INSTALL THE ANTIDOTE (NRE LABS) NETWORK EMULATOR ON A LINUX SYSTEMMay 13, 2019
Antidote is a
network emulator combined with a presentation framework. It was designed to create and deliver networking technology training. Its user interface operates in a web browser, including the terminals that students use to run commands on emulated network devices and servers. Antidote is the engine that runs the Network Reliability Labs web site. Antidote is an open-source project, released under the Apache license . A standalone version of Antidote may be installed and run on your personal computer using theselfmedicate
script. In this post, I will install Antidote and configure it to improve Antidote performance on my Linux system.Continue Reading…
In Network Automation,
Network Simulation
Antidote , emulation, KVM
, NRElabs
THE WISTAR NETWORK EMULATORApril 25, 2019
Wistar is an open-source network emulator originally developed by Juniper Networks and released under the Apache license. It simplifies the
presentation of Juniper products on its graphical user interface by making the multiple VMs that make up each JunOS virtual router appear as one node in the network topology. Wistar also supports Linux virtual machines and, interestingly, uses cloud-init to configure Linux routers from the Wistar user interface. Wistar also supports generic virtual appliances, in a basic way. In this post, I will install Wistar and use it to work through two examples using open source routers.Continue Reading…
In Network Simulationemulation , FRR
, Linux
, Wistar
VRNETLAB: EMULATE NETWORKS USING KVM AND DOCKERMarch 15, 2019
Vrnetlab , or _VR Network Lab_, is an open-source network emulator that runs virtual routers using KVM and Docker. Software developers and network engineers use vrnetlab, along with continuous-integration processes, for testing network provisioning changes in a virtual network. Researchers and engineers may also use the vrnetlab command line interface to create and modify network emulation labs in an interactive way. In this post, I review vrnetlab’s main features and show how to use it to create a simple network emulation scenario using open-source routers.Continue Reading…
In Network Simulation, Open
Source Networking
Docker
, emulation
, KVM
, OpenWRT
, python
, vrnetlab
BUILD A NETWORK EMULATOR USING LIBVIRT AND KVMFebruary 1, 2019
In this post, I demonstrate how to create a network emulation scenario using Libvirt , the Qemu/KVM hypervisor, and Linux bridges to create and manage interconnected virtual machines on a host system. As I do so, I will share what I have learned about network virtualization on a Linux system. Libvirt provides a command-line interface that hides the low-level virtualization and networking details, enabling one to easily create and manage virtual networking scenarios. It is already used as a basis for some existing network emulators, and
other applications and tools. It is available in almost every Linux distribution.Continue Reading…
In Network Simulation, Open
Source Networking
DevOps
, emulation
, FRR
, KVM
, libvirt
PYTHON FOR NETWORK ENGINEERS: A FAST TRACK GUIDEAugust 22, 2018
Are you like me? Are you a network engineer, or other professional, transitioning their skill set to include programming and automation? Does your programming experience experience come from a few programming courses you attended in college a long time ago? Then please read on because I created this Python guide for people like youand me.
In this guide, I explain the absolute minimum amount you need to learn about Python required to create useful programs. Follow this guide to get a very short, but functional, overview of Python programming inless than one hour.
When you begin using Python, there are a lot of topics you do not need to know so I omit them from this guide. However, I don’t want you to have to unlearn misconceptions later, when you become more experienced, so I include some Python concepts that other beginner guides might skip, such as the Python object model. This guide is “simple” but it is also “correct”.Continue Reading…
In Network Automationautomation ,
programming , python CREATE A NESTED VIRTUAL MACHINE IN A MICROSOFT AZURE LINUX VMJune 20, 2018
Microsoft Azure unofficially supports nested virtualization using KVM on Linux virtual machines, which makes it possible to build network emulation scenarios in the cloud using the same technologies you would use if you were using your own PC or a local server. In this post, I will show you how to set up a Linux virtual machine in Microsoft Azure and then create a nested virtual machine inside the Azure virtual machine. This is a simple example, but you may use the same procedure as a starting point to create more complex network emulation scenarios using nested virtualization.Continue Reading…
In Open Source NetworkingAzure
, cloud
NETWORK LABS USING NESTED VIRTUALIZATION IN THE CLOUDJune 11, 2018
Many open-source network simulation and emulation toolsuse
full virtualization technologies like VMware, QEMU/KVM
, or VirtualBox
. These technologies require hardware support for virtualizationsuch as Intel’s
VT-x
and AMD’s AMD-V
. To
gain direct access to this hardware support, researchers usually run network emulation test beds on their own PCs or servers but could not take advantage of the inexpensive and flexible computing services offered by cloud providers like Amazon EC2 , Google Compute Engine , or Microsoft Azure.
By August 2017, most of the major cloud service providers announced support for nested virtualization . In the cloud context, Nested Virtualization is an advanced feature aimed at enterprises, but it is also very useful for building network emulation test beds. I’ve written about nested virtualization for servers before but, until recently, I was limited to running nested virtual machines on my own PC. Now that the major cloud providers support nested virtualization, I can build more complex network emulation scenarios using cloud servers. This post will discuss the cloud service providers that support nested virtualization and how this feature supports open source networking simulation and emulation in the cloud.Continue Reading…
In Network SimulationAzure
, cloud
ENABLE NESTED VIRTUALIZATION ON GOOGLE CLOUDDecember 15, 2017
Google Cloud Platform introduced nested virtualization support in September 2017. Nested virtualization is especially interesting to network emulation research since it allow users to run unmodified versions of popular network emulation toolslike GNS3 , EVE-NG
,
and Cloonix on a cloudinstance.
Google Cloud supports nested virtualization using the KVM hypervisor on Linux instances. It does not support other hypervisors like VMware ESX or Xen, and it does not support nested virtualization for Windowsinstances.
In this post, I show how I set up nested virtualization in Google Cloud and I test the performance of nested virtual machines running on a Google Cloud VM instance.Continue Reading…
In Network Simulationcloonix
, cloud
, EVE-NG
, GNS3
, UNetLab
, virtualization
INSTALL AND RUN THE CLOONIX NETWORK EMULATOR ON PACKET.NETDecember 11, 2017
This tutorial shows how to set up the Cloonix network emulator on a Packet.net server. It builds on top of my previous post about how to set up a virtualization server on Packet.net.
Now, I focus on a specific case: setting up the Cloonix networkemulator on the
virtualization server. You should read my previous post before reading this one. Running Cloonix on a remote server enables users to work with more complex network emulation scenarios than would be possible on a standard laptop computer. For example. Cloonix recently added a feature which allows users to run Cisco router images in a Cloonix network emulation scenario. Cisco router images require a large amount of computer resources so I cannot run more than a few on my personal laptop computer. If I use a remote Packet server, I could run dozens of Cisco images in a network emulation scenario if I wanted to. In this post, I will set up a Cloonix network emulation server on Packet.net so it can be started, stopped, and restarted relativelyquickly.
Continue Reading…
In Network SimulationCisco
, cloonix
, cloud
SET UP A DEDICATED VIRTUALIZATION SERVER ON PACKET.NETOctober 3, 2017
Packet is a hardware-as-a-service vendor that provides dedicated servers on demand at very low cost. For me and my readers, Packet offers a solution to the problem of using cloud services to run complex network emulation scenarios that require hardware-level support for virtualization. Packet users may access powerful servers that empower them to perform activities they could not run on a normal personal computer. In this post, I will describe the procedure to set up an on-demand bare metal server and to create and maintain persistent data storage for applications. I will describe a generic procedure that can be applied to any application and that works for users who access Packet services from a laptop computer running any of the common operating systems: Windows, Mac, and Linux. In a future post, I will describe how I run network emulation scenarios on a Packet server.Continue Reading…
In Network Simulationcloud
, KVM
, virtualization
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2019 Open-Source Routing and Network Simulation— Standard
by 8BIT
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