Software:Open vSwitch

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Short description: Virtual network switch
Open vSwitch
Open vSwitch logo
Initial releaseJuly 29, 2009; 14 years ago (2009-07-29)[1]
Written inC
Operating systemLinux, Hyper-V, FreeBSD and NetBSD
TypeVirtual network switch
LicenseApache License 2.0
Websitewww.openvswitch.org

Open vSwitch, sometimes abbreviated as OVS, is an open-source implementation of a distributed virtual multilayer switch. The main purpose of Open vSwitch is to provide a switching stack for hardware virtualization environments, while supporting multiple protocols and standards used in computer networks.[2]

The project's source code is distributed under the terms of Apache License 2.0.

Overview

Open vSwitch deployed as a cross-server virtual network switch, transparently distributed across multiple physical servers.[2]

Open vSwitch is a software implementation of a virtual multilayer network switch, designed to enable effective network automation through programmatic extensions, while supporting standard management interfaces and protocols such as NetFlow, sFlow, SPAN, RSPAN, CLI, LACP and 802.1ag. In addition, Open vSwitch is designed to support transparent distribution across multiple physical servers by enabling creation of cross-server switches in a way that abstracts out the underlying server architecture, similar to the VMware vNetwork distributed vswitch or Cisco Nexus 1000V.[3][4][5]

Open vSwitch can operate both as a software-based network switch running within a virtual machine (VM) hypervisor, and as the control stack for dedicated switching hardware; as a result, it has been ported to multiple virtualization platforms, switching chipsets, and networking hardware accelerators.[6] Open vSwitch is the default network switch in the XenServer virtualization platform since its version 6.0,[7] and in the Xen Cloud Platform via its XAPI management toolstack.[8] It also supports Xen, Linux KVM, Proxmox VE and VirtualBox hypervisors, while a port to Hyper-V is also available.[9] Open vSwitch has also been integrated into various cloud computing software platforms and virtualization management systems, including OpenStack, openQRM, OpenNebula and oVirt.[3][4]

The Linux kernel implementation of Open vSwitch was merged into the kernel mainline in kernel version 3.3, which was released on March 18, 2012;[10][11] official Linux packages are available for Debian, Fedora, openSUSE and Ubuntu.[3] (As of January 2014), FreeBSD and NetBSD implementations are also available, with the NetBSD's implementation operating completely in userspace.[12][13][14]

The majority of the Open vSwitch source code is written in platform-independent C language, which provides easy portability to various environments. The source code is licensed under the Apache License 2.0.[3]

Features

(As of September 2015), features provided by Open vSwitch include the following:[15][16]

See also

References

  1. ↑ "A complete list of Open vSwitch releases". http://openvswitch.org/releases/. 
  2. ↑ 2.0 2.1 M. Tim Jones (October 27, 2010). "Virtual networking in Linux". IBM. http://www.ibm.com/developerworks/linux/library/l-virtual-networking/. 
  3. ↑ 3.0 3.1 3.2 3.3 "Open vSwitch: An Open Virtual Switch". https://www.openvswitch.org/. 
  4. ↑ 4.0 4.1 Thomas Graf (April 24, 2013). "Underneath OpenStack Quantum: Software Defined Networking with Open vSwitch". Red Hat. http://blog.zhaw.ch/icclab/files/2013/04/OpenStack-Quantum-SDN-with-Open-vSwitch.pdf. 
  5. ↑ Ralf Spenneberg. "Virtual switching with Open vSwitch". http://www.admin-magazine.com/CloudAge/Articles/Virtual-switching-with-Open-vSwitch. 
  6. ↑ "Tilera Launches Open Virtual Switch Solution (OVS) to Accelerate NFV and SDN". Marketwired. February 24, 2014. http://www.marketwired.com/press-release/tilera-launches-open-virtual-switch-solution-ovs-to-accelerate-nfv-and-sdn-1881746.htm. 
  7. ↑ "XenServer 6.0 Release Notes". Citrix Systems. March 8, 2012. http://support.citrix.com/article/CTX130418. 
  8. ↑ "XAPI: Open source software to build private and public clouds". 2013. http://www.xenproject.org/developers/teams/xapi.html. 
  9. ↑ Alessandro Pilotti (May 22, 2014). "Open vSwitch on Hyper-V". http://www.cloudbase.it/open-vswitch-on-hyper-v/. 
  10. ↑ "Linux kernel 3.3, Section 1.3. Open vSwitch". March 18, 2012. http://kernelnewbies.org/Linux_3.3#head-d587af5a0e432c20cd96f2fe2b82adabba671df9. 
  11. ↑ Jonathan Corbet (November 30, 2011). "Routing Open vSwitch into the mainline". LWN.net. https://lwn.net/Articles/469775/. 
  12. ↑ "FreshPorts – net/openvswitch". December 30, 2013. http://www.freshports.org/net/openvswitch/. 
  13. ↑ Gaetano Catalli (November 7, 2011). "Open vSwitch: performance improvement and porting to FreeBSD". http://changeofelia.info.ucl.ac.be/pmwiki/uploads/SummerSchool/Program/poster_001.pdf. 
  14. ↑ "openvswitch/ovs: ovs/INSTALL.NetBSD at master". January 11, 2014. https://github.com/openvswitch/ovs/blob/master/INSTALL.NetBSD. 
  15. ↑ "Open vSwitch: Features". http://openvswitch.org/features/. 
  16. ↑ Jesse Gross (September 2013). "Programmable Networking with Open vSwitch". LinuxCon. http://events.linuxfoundation.org/sites/events/files/slides/OVS-LinuxCon%202013.pdf. 
  17. ↑ "Accelerating Open vSwitch to 'Ludicrous Speed'". November 13, 2014. http://networkheresy.com/2014/11/13/accelerating-open-vswitch-to-ludicrous-speed/. 
  18. ↑ Jesse Gross (August 21, 2014). "The Evolution of Open vSwitch". LinuxCon. pp. 6, 13–17. https://events.static.linuxfound.org/sites/events/files/slides/Evolution%20of%20OVS.pdf. 

External links



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