What is a VPN in a Cisco SD-WAN deployment?
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In a Cisco SD-WAN deployment, VPN stands for Virtual Private Network. It is a virtualized environment that provides traffic isolation and segmentation within the SD-WAN fabric. This means that it creates a secure and encrypted tunnel between two or more endpoints, allowing traffic to travel securely over a public network such as the Internet.
In an SD-WAN deployment, VPNs can be used to connect different sites or branches of an enterprise network, or to connect remote workers to the enterprise network. By using VPNs, traffic can be securely transported between these sites or endpoints without the need for expensive dedicated private network links.
In addition, SD-WAN VPNs can be used to provide Quality of Service (QoS) and policy-based routing capabilities, allowing administrators to prioritize and route traffic based on business needs and network conditions. This helps ensure that critical applications and services receive the necessary bandwidth and network resources to perform optimally.
Overall, VPNs play a critical role in Cisco SD-WAN deployments by providing secure, reliable, and flexible connectivity between different sites and endpoints within the enterprise network.