Survey of Promising Technologies for 5G Networks

Table 1

Differences between SDN and conventional networking.

Software-defined networking	Conventional hardware-based networking
Data and control plane are decoupled by API or OpenFlow	Data and control plane are mounted on same plane, new protocol for every service
Automatic reconfigurable and repolicing logically centralized configuration	Static or manual configuration and reconfiguration takes time
SDN can prioritize or block specific packets	Conventional network leads all packets the same way
Provides global or comprehensive network views leading to consistent and effective policies	Provides limited information about networks
Easy to program according to application and user needs and can be developed quick via software upgrades	Difficult to replace the existing program with new ideas and works according to packet-forwarding tables