Open VSwitch

1. Open VSwitch
   1. Abstract

• Open Source(Apache 2 License) software switch
  • software based packet switching platform
  • suitable for VM environments
  • support for Xen/XenServer, KVM, and VirtualBox
  • implemented by platform-independent C
• Functions
  • 802.1Q VLAN with trunk and access ports
  • NIC bonding
  • Netflow, SFlow®, SPAN, RSPAN, and ERSPAN
  • QoS configuration
  • GRE
  • 802.1ag
  • OpenFlow 1.0
  • Transactional configuration database
  • Compatible with Linux bridge code
  • High-performance forwarding using a Linux kernel module

1. Components

Modules	Description
ovs-vswitchd	A daemon that implements the switch, flow based switching
ovsdb-server	Lightweight database server for configuration
ovs-brcompatd	Bridge function, intercept bridge ioctls
ovs-dpctl	A tool for configuring the switch kernel module
ovs-vsctl	A utility for querying and updating the configuration
ovs-appctl	A utility that sends commands to running daemon
ovsdbmonitor	A GUI tool for OVS databases and OpenFlow table