In the globalized world, international companies need network access, whether it be in Brazil today and a firewall in China tomorrow. SD-WAN makes this possible. The virtualized network has three major advantages for the digitalization of the economy:
- Optimization of hybrid networks
The technology dynamically and automatically divides data traffic between MPLS and the internet depending on the network load and application. This allows you to make better use of the available bandwidth of hybrid connections.
- Centralized network configuration
SD-WAN makes the network more agile. Administrators can centrally configure the devices in their locations and implement changes much faster than before. At the same time, they can monitor the company network in close to real time. Bottlenecks and malfunctions can be better predicted and rectified.
- Simple and secure cloud connectivity
Local internet access for connecting public clouds is also possible without SD-WAN. However, IT administrators must manage and secure them individually. With this new technology, just a few clicks gets you reports on the internet usage of all locations. You can also configure firewalls centrally and uniformly.
Virtualization of the network with SDN and NFV
The secret behind SD-WAN has two components: Software-Defined Networking (SDN) and Network Functions Virtualization (NFV). Both are virtualization technologies for networks. SDN detaches the network control from the data transport. This allows network components such as routers and switches to be centrally controlled for the first time. With NFV, network functions such as firewalls and WAN acceleration no longer run on proprietary hardware, but as software on standard servers. In this way, SD-WAN forms an overlay network that is completely independent of the transport network, whether MPLS, internet, or ethernet.
Smart SD-WAN migration – step by step to the goal
T-Systems recommends switching the company network to SD-WAN according to the LUCI principle. In this process, we first clarify the requirements for the network and plan its design (layout) with you. Then we provide the necessary hardware at the company location (update). In the next step, the network is divided into segments (creation of segments). Finally, the migration takes place segment by segment (implementation). With this approach, we can identify risks early on, prevent faults, and – if they do occur – limit them to the power supply units.