VoLTE and OF / voip-of · Commits

Commit 7032161beb0e3081d6d9157921a4c64c74c1113b

Authored by Julien LANGLOIS
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  1 +++ a/README
  1 + OpenFlow Reference Release <http://openflowswitch.org>
  2 +
  3 +What is OpenFlow?
  4 +-----------------
  5 +
  6 +OpenFlow is a flow-based switch specification designed to enable
  7 +researchers to run experiments in live networks. OpenFlow is based on a
  8 +simple Ethernet flow switch that exposes a standardized interface for
  9 +adding and removing flow entries.
  10 +
  11 +An OpenFlow switch consists of three parts: (1) A "flow table" in
  12 +which each flow entry is associated with an action telling the switch
  13 +how to process the flow, (2) a "secure channel" connecting the switch
  14 +to a remote process (a controller), allowing commands and packets to
  15 +be sent between the controller and the switch, and (3) an OpenFlow
  16 +protocol implementation, providing an open and standard way for a
  17 +controller to talk to the switch.
  18 +
  19 +An OpenFlow switch can thus serve as a simple datapath element that
  20 +forwards packets between ports according to flow actions defined by
  21 +the controller using OpenFlow commands. Example actions are:
  22 +
  23 + - Forward this flow's packets to the given port(s)
  24 + - Drop this flow's packets
  25 + - Encapsulate and forward this flow's packets to the controller.
  26 +
  27 +The OpenFlow switch is defined in detail in the OpenFlow switch
  28 +Specification [2].
  29 +
  30 +What's here?
  31 +------------
  32 +
  33 +This distribution includes one reference implementations of an
  34 +OpenFlow switch. This implementation has the following components:
  35 +
  36 + - ofdatapath, which implements the flow table in user space.
  37 +
  38 + - ofprotocol, a program that implements the secure channel
  39 + component of the reference switch.
  40 +
  41 + - dpctl, a tool for configuring the switch.
  42 +
  43 +This distribution includes some additional software as well:
  44 +
  45 + - controller, a simple program that connects to any number of
  46 + OpenFlow switches, commanding them to act as regular MAC
  47 + learning switches.
  48 +
  49 + - vlogconf, a utility that can adjust the logging levels of a
  50 + running ofprotocol or controller.
  51 +
  52 + - ofp-pki, a utility for creating and managing the public-key
  53 + infrastructure for OpenFlow switches.
  54 +
  55 + - A patch to tcpdump that enables it to parse OpenFlow
  56 + messages.
  57 +
  58 + - A regression suite that tests OpenFlow functionality, please
  59 + see regress/README.
  60 +
  61 + - A Wireshark dissector that can decode the OpenFlow wire
  62 + protocol. Please see utilities/wireshark_dissectors/README.
  63 +
  64 +For installation instructions, read INSTALL. Each userspace program
  65 +is also accompanied by a manpage.
  66 +
  67 +What's NOT here?
  68 +----------------
  69 +
  70 +The reference implementation no longer includes the Linux kernel module
  71 +or the NetFPGA implementation. The OpenFlow consortium intends to
  72 +release these separately from the reference design.
  73 +
  74 +Platform support
  75 +----------------
  76 +
  77 +Other than the userspace switch implementation, the software in the
  78 +OpenFlow distribution should compile under Unix-like environments such
  79 +as Linux, FreeBSD, Mac OS X, and Solaris. Our primary test environment
  80 +is Debian GNU/Linux. Please contact us with portability-related bug
  81 +reports or patches.
  82 +
  83 +The userspace datapath implementation should be easy to port to
  84 +Unix-like systems. The interface to network devices, in netdev.c, is
  85 +the code most likely to need changes. So far, only Linux is
  86 +supported. We welcome ports to other platforms.
  87 +
  88 +GCC is the expected compiler.
  89 +
  90 +Bugs/Shortcomings
  91 +-----------------
  92 +
  93 +- The flow table does not support the "normal processing" action.
  94 +
  95 +References
  96 +----------
  97 +
  98 + [1] OpenFlow: Enabling Innovation in College Networks. Whitepaper.
  99 + <http://openflowswitch.org/documents/openflow-wp-latest.pdf>
  100 +
  101 + [2] OpenFlow Switch Specification.
  102 + <http://openflowswitch.org/documents/openflow-spec-latest.pdf>
  103 +
  104 +Contact
  105 +-------
  106 +
  107 +Public discussion list: openflow-discuss@openflowswitch.org
  108 +Direct e-mail: info@openflowswitch.org
  109 +
  110 +Web: http://openflowswitch.org/
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