SD-WAN and virtual private network.

When it comes to choosing an SD-WAN or a virtual private network, companies often have to consider the differences and factors between cost, cloud usage and applications. On the one hand, it is also due to the high popularity of SD-WAN in the industry in recent years. Therefore, many companies want to know where the fundamental differences and similarities between SD-WAN and virtual private networks are. If you have the same confusion, you may wish to read the contents of today's article.Virtual private networks are defined as creating secure networks over less secure network transmissions, such as the Internet. For a long time, the basic task of a virtual private network has been to delete packets from authenticated endpoints. All communications between endpoints perform the highest level of encryption, which forms the basis of a virtual private network on the Internet. It can be said to be simple and cost-effective, but there may be problems in ensuring network performance.

 At its most basic, virtual private networks can prioritize applications and communications before encrypting them. However, the value of doing so is limited, because once the communication is transmitted in the encrypted channel, it cannot be prioritized from the perspective of the network provider, because the header is encrypted and cannot be viewed; the second is reasonable. At the performance level, establish an optimal network to support communication.

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