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mininet @ 7c5d2771

Name Size Revision Age Author Comment
  bin 686a9993 over 6 years cody burkard add Ryu controller to mininet
  custom dec1f402 about 8 years Brandon Heller custom topo: remove author name No need for th...
  debian f66e9af5 over 7 years Bob Lantz Update for 2.1.0 final packaging
  doc c04ef88e about 8 years Bob Lantz Add note regarding removing old OVS junk.
  examples 7c5d2771 over 6 years cody burkard wait for sshd to start in example
  mininet 7c5d2771 over 6 years cody burkard wait for sshd to start in example
  util 629e58ca over 6 years Bob Lantz Add 'use' test for using VM interactively
.gitattributes 17 Bytes 29884297 over 8 years Bob Lantz show method names in git diff output
.gitignore 106 Bytes 4f33cad0 over 8 years Bob Lantz Ignore more stuff, notably generated docs and m...
.pylint 8.74 KB 350fdbfe almost 9 years Bob Lantz Allow modules (node.py) to be 1500 lines. Maybe...
CONTRIBUTORS 759 Bytes 87c37bb1 over 7 years Bob Lantz Add jpoliv
INSTALL 5.27 KB 4b65570b about 7 years Gregory Gee Add notes about specific release branches.
LICENSE 1.66 KB 96952b92 about 7 years Bob Lantz 2.1.0 -> 2.1.0+
Makefile 1.49 KB 8842e450 over 7 years Jose Pedro Oliveira Turns on gcc warnings (CFLAGS += -Wall -Wextra)
README.md 4.6 KB 96952b92 about 7 years Bob Lantz 2.1.0 -> 2.1.0+
mnexec.c 5.63 KB b85943dc over 6 years Bob Lantz chdir() to correct path after calling chroot() ...
setup.py 1.19 KB 896c4cbc over 7 years Bob Lantz Edits for 2.1.0

Latest revisions

# Date Author Comment
2ceb5791 10/07/2014 11:11 PM Bob Lantz

Merge branch 'cdburkard-patches/test_walkthrough'

61c144b9 10/07/2014 11:08 PM Bob Lantz

Minor fixes to wireshark test

8537e8d9 10/07/2014 09:27 PM lantz

Merge pull request #404 from cdburkard/patches/default_cli

use node.pexec() to update IP address of intf instead of node.cmd()

7c5d2771 10/03/2014 11:52 AM cody burkard

wait for sshd to start in example

098bede0 10/03/2014 03:09 AM Bob Lantz

Wait for controller shutdown.

Unfortunately, this can slow things down a bit - perhaps
100-200 ms in the case of ovs-controller, but I am hoping that
it may help slightly with #399.

629e58ca 10/03/2014 01:45 AM Bob Lantz

Add 'use' test for using VM interactively

e3ab3fc2 10/02/2014 06:10 PM cody burkard

fix a few small issues with walkthrough tests

f1123e71 10/02/2014 04:19 PM cody burkard

update interface IP address with pexec so that backgrounded process output from the cli cannot interfere

d6da13d4 10/02/2014 12:32 AM Bob Lantz

ntpd doesn't take a server argument

92a4f2dd 10/02/2014 12:29 AM Bob Lantz

Try using ntpd since ntpdate doesn't always work

View all revisions | View revisions

README


Mininet: Rapid Prototyping for Software Defined Networks

The best way to emulate almost any network on your laptop!

Version 2.1.0+

What is Mininet?

Mininet emulates a complete network of hosts, links, and switches on a single machine. To create a sample two-host, one-switch network, just run:

sudo mn

Mininet is useful for interactive development, testing, and demos, especially those using OpenFlow and SDN. OpenFlow-based network controllers prototyped in Mininet can usually be transferred to hardware with minimal changes for full line-rate execution.

How does it work?

Mininet creates virtual networks using process-based virtualization and network namespaces - features that are available in recent Linux kernels. In Mininet, hosts are emulated as bash processes running in a network namespace, so any code that would normally run on a Linux server (like a web server or client program) should run just fine within a Mininet "Host". The Mininet "Host" will have its own private network interface and can only see its own processes. Switches in Mininet are software-based switches like Open vSwitch or the OpenFlow reference switch. Links are virtual ethernet pairs, which live in the Linux kernel and connect our emulated switches to emulated hosts (processes).

Features

Mininet includes:

  • A command-line launcher (mn) to instantiate networks.

  • A handy Python API for creating networks of varying sizes and topologies.

  • Examples (in the examples/ directory) to help you get started.

  • Full API documentation via Python help() docstrings, as well as the ability to generate PDF/HTML documentation with make doc.

  • Parametrized topologies (Topo subclasses) using the Mininet object. For example, a tree network may be created with the command:

    mn --topo tree,depth=2,fanout=3

  • A command-line interface (CLI class) which provides useful diagnostic commands (like iperf and ping), as well as the ability to run a command to a node. For example,

    mininet> h11 ifconfig -a

    tells host h11 to run the command ifconfig -a

  • A "cleanup" command to get rid of junk (interfaces, processes, files in /tmp, etc.) which might be left around by Mininet or Linux. Try this if things stop working!

    mn -c

New features in 2.1.0+

Mininet 2.1.0+ provides a number of bug fixes as well as several new features, including:

  • Convenient access to Mininet() as a dict of nodes
  • X11 tunneling (wireshark in Mininet hosts, finally!)
  • Accurate reflection of the Mininet() object in the CLI
  • Automatically detecting and adjusting resource limits
  • Automatic cleanup on failure of the mn command
  • Preliminary support for running OVS in user space mode
  • Preliminary support (IVSSwitch()) for the Indigo Virtual Switch
  • support for installing the OpenFlow 1.3 versions of the reference user switch and NOX from CPqD
  • The ability to import modules from mininet.examples

We have provided several new examples (which can easily be imported to provide useful functionality) including:

  • Modeling separate control and data networks: mininet.examples.controlnet
  • Connecting Mininet hosts the internet (or a LAN) using NAT: mininet.examples.nat
  • Creating per-host custom directories using bind mounts: mininet.examples.bind

Note that examples contain experimental features which might "graduate" into mainline Mininet in the future, but they should not be considered a stable part of the Mininet API!

Installation

See INSTALL for installation instructions and details.

Documentation

In addition to the API documentation (make doc), much useful information, including a Mininet walkthrough and an introduction to the Python API, is available on the Mininet Web Site. There is also a wiki which you are encouraged to read and to contribute to, particularly the Frequently Asked Questions (FAQ.)

Support

Mininet is community-supported. We encourage you to join the Mininet mailing list, mininet-discuss at:

https://mailman.stanford.edu/mailman/listinfo/mininet-discuss

Contributing

Mininet is an open source project and is currently hosted at https://github.com/mininet. You are encouraged to download the code, examine it, modify it, and submit bug reports, bug fixes, feature requests, new features and other issues and pull requests. Thanks to everyone who has contributed to the project (see CONTRIBUTORS for more info!)

Best wishes, and we look forward to seeing what you can do with Mininet to change the networking world!

Credits

The Mininet 2.1.0+ Team:

  • Bob Lantz
  • Brian O'Connor

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