Open vSwitch deployed as a cross-server virtual network switch, transparently distributed across multiple physical servers.[3]
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.[4][5][6]
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.[7] Open vSwitch is the default network switch in the XenServer virtualization platform since its version 6.0,[8] and in the Xen Cloud Platform via its XAPI management toolstack.[9] It also supports Xen, LinuxKVM, Proxmox VE and VirtualBox hypervisors, while a port to Hyper-V is also available.[10] Open vSwitch has also been integrated into various cloud computing software platforms and virtualization management systems, including OpenStack, openQRM, OpenNebula and oVirt.[4][5]
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;[11][12] official Linux packages are available for Debian, Fedora, openSUSE and Ubuntu.[4] As of January 2014[update], FreeBSD and NetBSD implementations are also available, with the NetBSD's implementation operating completely in userspace.[13][14][15]
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.[4]
Features
As of September 2015[update], features provided by Open vSwitch include the following:[16][17]
Remote configuration protocol, with existing bindings for the C and Python programming languages
Implementation of the packet forwarding engine in kernel space or userspace, allowing additional flexibility as well as providing performance improvements by processing the majority of forwarded packets without leaving the kernel space and by using multithreaded kernel space and userspace components[18][19]
Multi-table forwarding pipeline with a flow-caching engine
Forwarding layer abstraction, making it easier to port Open vSwitch to new software and hardware platforms
^. openvswitch.org. Archived from the original on November 9, 2017. Retrieved April 2, 2014.
^"Release 3.1.2". June 27, 2023. Retrieved June 30, 2023.
^ abM. Tim Jones (October 27, 2010). "Virtual networking in Linux". IBM. Retrieved April 9, 2014.
^ abcd"Open vSwitch: An Open Virtual Switch". openvswitch.org. Retrieved November 24, 2013.
^ abThomas Graf (April 24, 2013). "Underneath OpenStack Quantum: Software Defined Networking with Open vSwitch" (PDF). Red Hat. Retrieved April 9, 2014.
^Ralf Spenneberg. "Virtual switching with Open vSwitch". admin-magazine.com. Retrieved April 2, 2014.
^"Tilera Launches Open Virtual Switch Solution (OVS) to Accelerate NFV and SDN". Marketwired. February 24, 2014. Retrieved June 22, 2015.
^. Citrix Systems. March 8, 2012. Archived from the original on March 8, 2021. Retrieved January 22, 2015.
^"XAPI: Open source software to build private and public clouds". xenproject.org. 2013. Retrieved January 22, 2015.
^Alessandro Pilotti (May 22, 2014). "Open vSwitch on Hyper-V". cloudbase.it. Retrieved June 22, 2015.
^"Linux kernel 3.3, Section 1.3. Open vSwitch". kernelnewbies.org. March 18, 2012. Retrieved April 2, 2014.
^Jonathan Corbet (November 30, 2011). "Routing Open vSwitch into the mainline". LWN.net. Retrieved April 2, 2014.
^"FreshPorts – net/openvswitch". freshports.org. December 30, 2013. Retrieved April 2, 2014.
^Gaetano Catalli (November 7, 2011). (PDF). ucl.ac.be. Archived from the original (PDF) on March 5, 2016. Retrieved June 22, 2015.
^ "openvswitch/ovs: ovs/INSTALL.NetBSD at master". github.com. January 11, 2014. Archived from the original on April 9, 2014. Retrieved April 9, 2014.
^"Open vSwitch: Features". openvswitch.org. Retrieved September 17, 2015.
^Jesse Gross (September 2013). (PDF). linuxfoundation.org. LinuxCon. Archived from the original (PDF) on March 6, 2016. Retrieved November 24, 2013.
^Justin Pettit; Ben Pfaff; Ethan Jackson (November 13, 2014). "Accelerating Open vSwitch to 'Ludicrous Speed'". networkheresy.com. Retrieved May 26, 2015.
^Jesse Gross (August 21, 2014). "The Evolution of Open vSwitch" (PDF). events.linuxfoundation.org. LinuxCon. pp. 6, 13–17. Retrieved May 28, 2015.
External links
Wikimedia Commons has media related to Open vSwitch.
Introduction to Open vSwitch on YouTube, December 15, 2013
Open vSwitch: Deep Dive The Virtual Switch for OpenStack on YouTube, November 8, 2013
OVN, Bringing Native Virtual Networking to OVS, January 13, 2015, by Justin Pettit, Ben Pfaff, Chris Wright and Madhu Venugopal
, January 13, 2015, by Ben Pfaff
6WIND Announces Open vSwitch Acceleration for Red Hat Enterprise Linux OpenStack Platform, PRWeb, April 16, 2014
Going With the Flow: Google's Secret Switch to the Next Wave of Networking, Wired, April 17, 2012, by Steven Levy
Performance Characteristics of Virtual Switching, IEEE, 2014, by Paul Emmerich, Daniel Raumer, Florian Wohlfart and Georg Carle
August 28, 2023
open, vswitch, sometimes, abbreviated, open, source, implementation, distributed, virtual, multilayer, switch, main, purpose, provide, switching, stack, hardware, virtualization, environments, while, supporting, multiple, protocols, standards, used, computer, . 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 3 Initial releaseJuly 29 2009 14 years ago 2009 07 29 1 Stable release3 1 2 2 27 June 2023 48 days ago 27 June 2023 Repositorygithub wbr com wbr openvswitch wbr ovs wbr gitWritten inCOperating systemLinux Hyper V FreeBSD and NetBSDTypeVirtual network switchLicenseApache License 2 0Websitewww wbr openvswitch wbr orgThe project s source code is distributed under the terms of Apache License 2 0 Contents 1 Overview 2 Features 3 See also 4 References 5 External linksOverview Edit Open vSwitch deployed as a cross server virtual network switch transparently distributed across multiple physical servers 3 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 4 5 6 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 7 Open vSwitch is the default network switch in the XenServer virtualization platform since its version 6 0 8 and in the Xen Cloud Platform via its XAPI management toolstack 9 It also supports Xen Linux KVM Proxmox VE and VirtualBox hypervisors while a port to Hyper V is also available 10 Open vSwitch has also been integrated into various cloud computing software platforms and virtualization management systems including OpenStack openQRM OpenNebula and oVirt 4 5 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 11 12 official Linux packages are available for Debian Fedora openSUSE and Ubuntu 4 As of January 2014 update FreeBSD and NetBSD implementations are also available with the NetBSD s implementation operating completely in userspace 13 14 15 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 4 Features EditAs of September 2015 update features provided by Open vSwitch include the following 16 17 Exposed communication between virtual machines via NetFlow sFlow IP Flow Information Export IPFIX Switched Port Analyzer SPAN Remote Switched Port Analyzer RSPAN and port mirrors tunneled using Generic Routing Encapsulation GRE Link aggregation through the Link Aggregation Control Protocol LACP IEEE 802 1AX 2008 Standard 802 1Q virtual LAN VLAN model for network partitioning with support for trunking Support for multicast snooping using versions 1 2 and 3 of the Internet Group Management Protocol IGMP Support for the Shortest Path Bridging Media Access Control SPBM and associated basic support for the Link Layer Discovery Protocol LLDP Support for the Bidirectional Forwarding Detection BFD and 802 1ag link monitoring Support for the Spanning Tree Protocol STP IEEE 802 1D 1998 and Rapid Spanning Tree Protocol RSTP IEEE 802 1D 2004 Fine grained quality of service QoS control for different applications users or data flows Support for the hierarchical fair service curve HFSC queuing discipline qdisc Traffic policing at the level of virtual machine interface Network interface controller NIC bonding with load balancing by source MAC addresses active backups and layer 4 hashing Support for the OpenFlow protocol including various virtualization related extensions Complete IPv6 Internet Protocol version 6 support Support for multiple tunneling protocols including GRE Virtual Extensible LAN VXLAN Stateless Transport Tunneling STT and Geneve with additional support for layering over Internet Protocol Security IPsec Remote configuration protocol with existing bindings for the C and Python programming languages Implementation of the packet forwarding engine in kernel space or userspace allowing additional flexibility as well as providing performance improvements by processing the majority of forwarded packets without leaving the kernel space and by using multithreaded kernel space and userspace components 18 19 Multi table forwarding pipeline with a flow caching engine Forwarding layer abstraction making it easier to port Open vSwitch to new software and hardware platformsSee also Edit Free and open source software portalDistributed Overlay Virtual Ethernet DOVE LAN switching Network functions virtualization NFV Overlay transport virtualization OTV Software defined networking SDN References Edit A complete list of Open vSwitch releases openvswitch org Archived from the original on November 9 2017 Retrieved April 2 2014 Release 3 1 2 June 27 2023 Retrieved June 30 2023 a b M Tim Jones October 27 2010 Virtual networking in Linux IBM Retrieved April 9 2014 a b c d Open vSwitch An Open Virtual Switch openvswitch org Retrieved November 24 2013 a b Thomas Graf April 24 2013 Underneath OpenStack Quantum Software Defined Networking with Open vSwitch PDF Red Hat Retrieved April 9 2014 Ralf Spenneberg Virtual switching with Open vSwitch admin magazine com Retrieved April 2 2014 Tilera Launches Open Virtual Switch Solution OVS to Accelerate NFV and SDN Marketwired February 24 2014 Retrieved June 22 2015 XenServer 6 0 Release Notes Citrix Systems March 8 2012 Archived from the original on March 8 2021 Retrieved January 22 2015 XAPI Open source software to build private and public clouds xenproject org 2013 Retrieved January 22 2015 Alessandro Pilotti May 22 2014 Open vSwitch on Hyper V cloudbase it Retrieved June 22 2015 Linux kernel 3 3 Section 1 3 Open vSwitch kernelnewbies org March 18 2012 Retrieved April 2 2014 Jonathan Corbet November 30 2011 Routing Open vSwitch into the mainline LWN net Retrieved April 2 2014 FreshPorts net openvswitch freshports org December 30 2013 Retrieved April 2 2014 Gaetano Catalli November 7 2011 Open vSwitch performance improvement and porting to FreeBSD PDF ucl ac be Archived from the original PDF on March 5 2016 Retrieved June 22 2015 openvswitch ovs ovs INSTALL NetBSD at master github com January 11 2014 Archived from the original on April 9 2014 Retrieved April 9 2014 Open vSwitch Features openvswitch org Retrieved September 17 2015 Jesse Gross September 2013 Programmable Networking with Open vSwitch PDF linuxfoundation org LinuxCon Archived from the original PDF on March 6 2016 Retrieved November 24 2013 Justin Pettit Ben Pfaff Ethan Jackson November 13 2014 Accelerating Open vSwitch to Ludicrous Speed networkheresy com Retrieved May 26 2015 Jesse Gross August 21 2014 The Evolution of Open vSwitch PDF events linuxfoundation org LinuxCon pp 6 13 17 Retrieved May 28 2015 External links Edit Wikimedia Commons has media related to Open vSwitch Official website and source code on GitHub Introduction to Open vSwitch on YouTube December 15 2013 Open vSwitch Deep Dive The Virtual Switch for OpenStack on YouTube November 8 2013 OVN Bringing Native Virtual Networking to OVS January 13 2015 by Justin Pettit Ben Pfaff Chris Wright and Madhu Venugopal Open Virtual Network OVN Proposed Architecture January 13 2015 by Ben Pfaff 6WIND Announces Open vSwitch Acceleration for Red Hat Enterprise Linux OpenStack Platform PRWeb April 16 2014 Going With the Flow Google s Secret Switch to the Next Wave of Networking Wired April 17 2012 by Steven Levy Performance Characteristics of Virtual Switching IEEE 2014 by Paul Emmerich Daniel Raumer Florian Wohlfart and Georg Carle Retrieved from https en wikipedia org w index php title Open vSwitch amp oldid 1146576711, wikipedia, wiki, book, books, library,
