SD-WAN is a specific application form of software-defined networking (SDN) technology that is applied to WAN (wide area network) connections, which are used to connect corporate networks including branch offices and data centers that have wide geographic distances. This technology will help alleviate the complexity of zero-touch provisioning, which can address the risk of human error.
Technically, SD-WAN is different from traditional WAN. Traditional WANs work through the installation of exclusive circuits to supply IP services to the intended clients. This is done through the underlying hardware to complete the network as a whole.
The coverage of these multiple types of networks requires a winding effort for the IT team due to the amount of hardware installed and the processes required to manage network activity. It is different from SD-WAN which utilizes tunneling solutions on pre-existing network architecture.
5 Things you need to know about SD-WAN
SD-WAN simplifies WAN management and operation by separating network hardware from its control mechanisms. SD-WAN gives companies the option to dynamically connect a network of branch offices and headquarters for example, by leveraging shared Internet and cloud capabilities. There are many benefits of SD-WAN which can help your business network to be more practical than using a traditional WAN. Here are 5 things you need to know about SD-WAN.
The most noticeable difference between SD-WAN and traditional WAN is performance improvement. On a WAN, the failover time depends on how fast the routing changes on the router. The average routing change on the router lasts 3 minutes. SD-WAN itself provides faster failover, only takes 1 second so that it provides increased performance compared to traditional WAN.
Using a traditional WAN when a company creates a new network at branch offices will take time. Although in general the duration is almost the same, the SD-WAN installation can be done faster thanks to Zero Touch Provision technology. Failover time when there is a move from one link to another is almost imperceptible with the support of Link Steering / Dynamic Multipath Optimization (DMPO) technology.
Traditional WAN relies heavily on data centers. This requires that network traffic is backhaul through the data center so it can get clogged up. Meanwhile, SD-WAN has an integrated set of bandwidth provided by several service providers. This allows for greater utilization of network resources as data is migrated across offices.
The data center on which the traditional WAN relies has limited capacity. Especially for handling incoming connections to multiple cloud platforms. This will not happen on SD-WAN because it is not limited by the hardware that accommodates the network.
Traditional WAN support device configuration policies must be carried out independently, on a per device basis. This is done so that the configuration can be implemented properly. In SD-WAN, WAN applications are prioritized as a whole. In addition, companies can monitor traffic in real-time when a brownout occurs.
Based on the explanation above, it can be concluded that a software approach that utilizes the capabilities of the Internet and the cloud cannot be done by traditional networks. In addition, SD-WAN promises flexibility, security, and reduces network complexity