SDN_ Simple summary

SDN

 Recently, I learned to record this hot knowledge point ( It's still improving ...)

SDN: Software Defined Network

Concept : It's an architecture , Abstract the network Different Divisible The layer , It is the network that has become agile and flexible

​ The goal is to improve network control by enabling enterprises and service providers to quickly respond to changing business needs .

​ stay SDN in , Network engineers and administrators can choose from Center console Adjust flow , Don't touch every part of the network Switch ,

​ Regardless of the specific connection between the server and the device , Centralized SDN controller Until the switch provides network services wherever needed

Comparison Traditional network architecture : A single network device makes traffic decisions according to the configured routing table

1.SDNA The architecture of