Logical separation of network traffic

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SDN creates the basis for one of the most relevant trends in the organization of digital communications — intent-driven networking (IDN). From a passive scheme of network infrastructure maintenance to an automated network based on AI — this is the path that IDN opens for digital communications providers. The administrator of such a network only needs to clearly formulate the task, specify a set of KPIs for it (boundaries of guaranteed bandwidth, acceptable signal delay, etc.), after which the system based on machine learning will itself build an optimal route for this specific virtual data exchange channel based on the existing SDN.

management equipment from transmitted data flows provides SDN with additional advantages in terms of information security. Starting with the fact that direct attacks on routers and switches become extremely difficult, and ending with the extreme simplicity of network segmentation. By analogy with virtual machines that operate independently in the server memory and are reliably separated from each other, SDN can be used to create clearly delimited virtual data exchange channels. As a result, an attacker will not be able to gain access to sensitive information flows that physically pass through the same network infrastructure, but are bulgaria mobile database separated from it, through a compromised public communication channel.

Far away close
SD-WAN is an implementation of the SDN approach to WAN. A global (or distributed, as the word wide is also translated in the combination wide area network) network is characterized by the breadth of geographic coverage, unlike a local area network (LAN), and can cover entire regions, cities and even countries. Strictly speaking, the global (still) Internet itself is ultimately a WAN. Commercial enterprises, state or municipal institutions also often build their own WANs of various sizes - depending on the ramifications of their branch structure.

Various communication channels and protocols are used to connect individual WAN fragments. X.25, frame relay, analog modem lines, xDSL, MPLS, copper and fiber optic cables — specialists creating and servicing WANs have to deal with all of this. It seems completely logical to transfer traffic management in such a network to an automated system that will be able to offer and build the optimal virtual channel on the existing WAN infrastructure at any time for each connection and for each type of data. This is how SD-WANs arise — solutions for network management and data transfer between the center and branches.