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Альтернативный курс SDN от Huawei

This book explains why the SDN movement happened. It was essentially about a change in control: the owners and operators of big networks took control of how their networks work, grabbing the keys to innovation from the equipment vendors. It started with data center companies because they couldn’t build big-enough scale-out networks using off-the-shelf networking equipment. So they bought switching chips and wrote the software themselves. Yes, it saved them money (often reducing the cost by a factor of five or more), but it was control they were after. They employed armies of software engineers to ignite a Cambrian explosion of new ideas in networking, making their networks more reliable, quicker to fix, and with better control over their traffic. Today, in 2021, all of the large data center companies build their own networking equipment: they download and modify open-source control software, or they write or commission software to control their networks. They have taken control. The ISPs and 5G operators are next. Within a decade, expect enterprise and campus networks to run on open-source control software, managed from the cloud. This is a good change, because only those who own and operate networks at scale know how to do it best.

Future practical implementation of secure quantum communication technology in a multiuser network environment would require automatic monitoring of the optical link condition and quantum system parameters, along with adjusting them in real time according to protocol restrictions. We demonstrate how software-defined networking (SDN) paradigm can be used for addressing this problem on the example of a subcarrier wave quantum communication system, which is promising for network applications. We propose a novel approach to dynamic quantum network routing and communication security based on SDN OpenFlow protocol. SDN-operated dynamic switching between different data encryption methods, quantum or classic, will enable to organize virtual encoding channels with an ability to set the required Quality of Service level for security/bandwidth. These developments will further increase the feasibility of quantum technologies from the network perspective and contribute to bringing them to industrial scale.

EdgeAppInstance 'solapp011' -- 'Created', 'Active', run state changed from 'Unknown' to 'Init', from 'Init' to 'Error' => Delete

EdgeAppInstance 'solapp012' -- 'Created', 'Active', run state changed from 'Unknown' to 'Init', from 'Init' to 'Online' => Delete

author - Антон Копяткевич