1 Open vSwitch <http://openvswitch.org>
6 Open vSwitch is a versatile software-based Ethernet switch with the
9 * NIC bonding with automatic fail-over and source MAC-based TX
10 load balancing ("SLB").
12 * 802.1Q VLAN support.
14 * Port mirroring, with optional VLAN tagging.
16 * NetFlow v5 flow logging.
18 * Connectivity to an external OpenFlow controller, such as NOX.
20 Open vSwitch supports Linux 2.6.15 and up, with testing focused on
21 2.6.18 with Centos and Xen patches and version 2.6.26 from kernel.org.
22 Open vSwitch also has special support for Citrix XenServer hosts.
27 The main components of this distribution are:
29 * ovs-vswitchd, a daemon that implements the switch, along with
30 a companion Linux kernel module for flow-based switching.
32 * ovs-brcompatd, a daemon that allows ovs-vswitchd to act as a
33 drop-in replacement for the Linux bridge in many environments,
34 along with a companion Linux kernel module to intercept bridge
37 * ovs-dpctl, a tool for configuring the switch kernel module.
39 * Scripts and specs for building RPMs that allow Open vSwitch
40 to be installed on a Citrix XenServer host as a drop-in
41 replacement for its switch, with additional functionality.
43 * ovs-appctl, a utility that can control Open vSwitch daemons,
44 adjusting their logging levels among other uses.
46 Open vSwitch also provides an OpenFlow implementation and tools for
47 those interested in OpenFlow but not additional Open vSwitch features:
49 * ovs-openflowd, a program that implements a simple OpenFlow
50 switch (without the special features provided by ovs-vswitchd)
51 using the same kernel module as ovs-vswitchd.
53 * ovs-controller, a simple OpenFlow controller.
55 * ovs-ofctl, a utility for querying and controlling OpenFlow
56 switches and controllers.
58 * ovs-pki, a utility for creating and managing the public-key
59 infrastructure for OpenFlow switches.
61 * A patch to tcpdump that enables it to parse OpenFlow messages.
63 What other documentation is available?
64 --------------------------------------
66 To install Open vSwitch on a regular Linux machine, read INSTALL.Linux.
68 To build RPMs for installing Open vSwitch on a Citrix XenServer host
69 or resource pool, read INSTALL.XenServer.
71 To learn set up SSL support for Open vSwitch, read INSTALL.SSL.
73 Each Open vSwitch userspace program is accompanied by a manpage. Many
74 of the manpages are customized to your configuration as part of the
75 build process, so we recommend building Open vSwitch before reading
82 http://openvswitch.org/