The advent of 5G Technology has brought many profound changes in the communication industry, forcing network operators and equipment vendors to adapt to changing requirements of technology architecture and organizational structure. The customers have also evolved over the years, and want their service providers to offer more diversified services.
The 5G technology follows the basic principle of separating forward from control and has enabled service providers to offer flexibility, easy to expand, and easy to use features. The principle of 5G is displayed in many network architectures such as data plane deployment to the edge, control plane concentration, and a large number of distributed gateways. The hardware and software switch of distributed gateways also play a vital role in various services like flow diversion, priority processing, high reliability, and low latency communication.
The network operators have started implementing Software-defined networks (SDN) technology as it allows companies to virtualize multiple isolated virtual networks on the physical world. The technology uses tunneling technology, enabling users to avail independent network resource slicing to improve network resource utilization and realize flexible networks.
Acknowledging the significance of SDN in delivering many advantages to an organization, many service providers have launched their own SDN solution. Here is a discussion about two of the solutions that SDN Networks offer for enterprises:
OpenFlow Solution: OpenFlow solutions are also called centralized control solutions that are controlled by the SDN controller. It consists of OpenFlow switches and SDN controllers that forwards the traffic from the data layer and performs centralized control on the network to implement the functions of the control layer.
EVPN solution: EVPN is a multi-protocol address mapping standard that uses a network device control plane protocol for self-learning. Companies can use BGP as a routing protocol in combination with EVPN to bring complete control to VXLAN. The utilization of EVPN technology as the control layer of the VXLAN network makes the data plane much simpler. The solution also helps to form a unicast entry by notifying about any locally learned information as well as the peer end.