در شکل زیر دیاگرام Cisco SD-WAN و اجزای تشکیل دهنده آن را مشاهده میکنید. اجزای تشکیل دهنده Cisco SD-WAN مطابق آنچه در تصویر زیر میبینیم، عبارتند از:
vManage
vBond
vAnalytics
vSmart Controllers
vEdge Routers
و شامل سه لایه میباشد که عبارتند از:
Management / Orchestration Plane
Control Plane
Data Plane
Cisco SD-WAN SEN Components:
+ vManage Network Management System
+ vSmart Controller
+ vBond Orchestrator
+ vEdge Router
Of these four components, the vEdge router can be a Cisco SD-WAN hardware device or software that runs as a virtual machine, and the remaining three are software-only components. The software vEdge router, vManage NMS, and vSmart controller software run on servers, and the vBond orchestrator software runs as a process (daemon) on a vEdge router.
Reference: Cisco
The Tactile Internet will be the next evolution of the Internet of Things (IoT), encompassing human-to-machine and machine-to-machine interaction. It will enable real-time interactive systems with a raft of industrial, societal and business use cases.
The International Telecommunication Union (ITU) defines the Tactile Internet as an internet network that combines ultra low latency with extremely high availability, reliability and security. It believes the Tactile Internet represents a “revolutionary level of development for society, economics and culture”.
The Tactile Internet is the next evolution that will enable the control of the IoT in real time. It will add a new dimension to human-to-machine interaction by enabling tactile and haptic sensations, and at the same time revolutionise the interaction of machines.
The Tactile Internet will enable humans and machines to interact with their environment, in real time, while on the move and within a certain spatial communication range. It will unleash the full potential of the fourth industrial revolution, dubbed Industry 4.0, and revolutionise the way we learn and work through the Internet of Skills, aka Human 4.0.
Proponents of the Tactile Internet argue that it should build on areas where machines are strong and humans are weak, so that the machines complement rather than substitute humans. As the power of the machines increases, the value of the human input should also grow.
The Tactile Internet will combine multiple technologies, both at the network and application level. At the edges, the Tactile Internet will be enabled by the IoT and robots. Content and data will be transmitted over a 5G network, while intelligence will be enabled close to the user experience through mobile edge computing. At the application level, automation, robotics, telepresence, augmented reality (AR), virtual reality (VR) and artificial intelligence (AI) will all play a part.
Software Defined IXP (SDX) tries to bring the merits of Software Defined Networking (SDN) to interdomain routing. BGP constrains how networks can deliver traffic over the Internet. Today’s networks can only forward traffic based on the destination IP prefixes, by selecting among the routes offered by their immediate neighbors. SDN can offer direct control over packet-processing rules that match on multiple header fields and perform a variety of actions. IXPs are a compelling place to deploy these changes, given their role in interconnecting many networks and their growing importance in bringing popular content closer to end users.
SDX does more than simply replace an IXP’s switches with their OpenFlow counterparts. SDX's capabilities enable new applications, such as application-specific peering---where two networks peer only for (say) streaming video traffic.
