Revision df56fa27 README.md

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README.md
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*The best way to emulate almost any network on your laptop!*
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Mininet 2.2.1d1
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Mininet 2.2.1d2
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### What is Mininet?
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### New features in this release
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This release provides a number of bug fixes as well as
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several new features, including:
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This is primarily a performance improvement and bug fix release.
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* Improved OpenFlow 1.3 support
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- Batch startup has been implemented for Open vSwitch, improving
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  startup performance.
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	- `mn --switch ovs,protocols=openflow13` starts OVS in 1.3 mode
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	- `install.sh -w` installs a 1.3-compatible Wireshark dissector using
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	  Loxigen
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	- `install.sh -y` installs the Ryu 1.3-compatible controller
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- OVS patch links have been implemented via OVSLink and --link ovs
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* A new `nodelib.py` node library, and new `Node` types including
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  `LinuxBridge`, `OVSBridge`, `LinuxRouter` (see `examples/`)
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  and `NAT`
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  Warning! These links have *serious limitations* compared to
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  virtual Ethernet pairs: they are not attached to real Linux
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  interfaces so you cannot use tcpdump or wireshark with them;
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  they also cannot be used in long chains - we don't recommend more
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  than 64 OVSLinks, for example --linear,64. However, they can offer
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  significantly better performance than veth pairs, for certain
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  configurations.
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* A `--nat` option which connects a Mininet network to your LAN using NAT
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  (For this to work correctly, Mininet's `--ipbase` subnet should not 
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  overlap with any external or internet IP addresses you wish to use)
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* An improved MiniEdit GUI (`examples/miniedit.py`) - thanks to
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  Gregory Gee
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* Support for multiple `--custom` arguments to `mn`
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* Experimental cluster support - consult the 
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  [documentation](http://docs.mininet.org) for details -
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  as well as `examples/cluster.py` and an experimental `--cluster`
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  option for topologies built with the default `Host` and `OVSSwitch`
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  classes:
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  `mn --cluster localhost,server1,server2`
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Note that examples contain experimental features which might
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"graduate" into mainline Mininet in the future, but they should 
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not be considered a stable part of the Mininet API!
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A number of bugs have also been fixed, most notably multiple link
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support in `Topo()`. See github issues and the release notes on
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the Mininet wiki for additional information.
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- Additional information for this release and previous releases
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  may be found in the release notes on docs.mininet.org
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### Installation
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