What does sdn mean?

Sdn is a protocol for switches, routers and networks.

SDN network originated from the fact that the current switches, routers, network protocols and segmentation tools can't meet the needs of connection. SDN network infrastructure can be virtualized, and workloads and data sets can be dynamically and automatically moved between distributed heterogeneous cloud servers and storage pools. This set of technologies is collectively called Software Defined Network (SDN).

Netcom in SDN network enterprises often has a chain reaction because of the congestion of a network element or a group of local network elements. SDN network measures the end-to-end performance and delayed service of enterprises. SDN network avoids these chain reactions in controlling network resources more dynamically.

Better application control of SDN network also means that services can dynamically instantiate virtual private network flows, and SDN network allows personal resources to access to protect cloud infrastructure. SDN network remote data replication service is disaster recovery in a geographically independent data center. In order to support virtual machine mobility and aggregation neutrality, SDN network services provide the basic tools you need, such as network connection and bandwidth, and then eliminate these resources on the basis of completion.