Open Flow Oded Rotter firstname.lastname@example.orgBased On:http://en.wikipedia.org/wiki/Openflow_Switching_Protocolhttp://www.networkworld.com/community/blog/openflow-inventor-discusses-software-defined-networking?page=0%2C0&source=NWWNLE_nlt_cisco_2011-09-09http://www.nicira.com/http://www.bigswitch.com/
Wikepedia OpenFlow is a communications protocol that gives access tothe forwarding plane of a network switch or router over the network. In simpler terms, OpenFlow allows the path-of- network-packets-through-the-network-of-switches to be determined by software running on a separate server. This separation of the control from the forwarding allows for more sophisticated traffic management than feasible usingaccess control lists (ACL)s and routing protocols. Its inventors consider OpenFlow an enabler of "Software Defined Networking".
OpenFlow has been implemented by a number of networkswitch and router vendors including Arista Networks, ExtremeNetworks, IBM, Juniper Networks, Hewlett-Packard, andNEC. Some network control plane implementations use theprotocol to manage the network forwarding elements.OpenFlow is mainly used between the switch and controlleron secure channel.Version 1.1.0 of the OpenFlow protocol was released onFebruary 28, 2011 and is still maintained at openflow.org, butnew development of the standard was managed by the OpenNetworking Foundation.Indiana University in May 2011 launched the SDNInteroperability Lab in conjunction with the Open NetworkingFoundation to test how well different vendors Software-Defined Networking and OpenFlow products work together.