Network Virtualization Technologies

Posted: 19th September 2021 by ccna7guru in ENSA
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Two major network architectures have been developed to support network virtualization:
Software-Defined Networking (SDN) – A network architecture that virtualizes the network, offering a new approach to network administration and management that seeks to simplify and streamline the administration process.
Cisco Application Centric Infrastructure (ACI) – A purpose-built hardware solution for integrating cloud computing and data center management.

Components of SDN may include the following:
OpenFlow – This approach was developed at Stanford University to manage traffic between routers, switches, wireless access points, and a controller. The OpenFlow protocol is a basic element in building SDN solutions.
OpenStack – This approach is a virtualization and orchestration platform designed to build scalable cloud environments and provide an IaaS solution. OpenStack is often used with Cisco ACI. Orchestration in networking is the process of automating the provisioning of network components such as servers, storage, switches, routers, and applications.
Other components – Other components include Interface to the Routing System (I2RS), Transparent Interconnection of Lots of Links (TRILL), Cisco FabricPath (FP), and IEEE 802.1aq Shortest Path Bridging (SPB).