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3.5 Enterprise zone virtual private network

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• 企业园区虚拟专网

为了满足企业园区内部大量本地数据的访问以及内部通信的需求，通常采用自建专网的方式进行，可以基于MEC提供虚拟专网框架。

企业园区用户不必使用定制终端，MEC服务器可以根据事先配置的分流规则将园区用户访问本地网络的数据直接转发至企业园区的本地网络，为用户提供本地连接及本地访问的能力。

MEC for Enterprise Users

MEC is envisaged to play an important role in the way 5G penetrates enterprise connectivity and is used to support enterprise applications. Industry sectors such as healthcare, government institutions and fleet management are expected to benefit from MEC-based 5G applications. However, in order to realize these benefits, the complexity and diversity of requirements associated with various types of enterprise use cases need to be addressed. Here, 5G capabilities, such as network slicing and flexible deployment of UPF, help enable flexible MEC-based deployment that is needed to host such different enterprise applications.

Deployment of MEC for enterprise applications in a corporate office environment could be applied as follows:

A corporate enterprise might require employees to access enterprise apps within the physical location of the corporation. The app can be used for tracking employees, sending training videos, security updates, etc. As explained in previous sections, MEC can exist as an AF within the 5G architecture. Within the 5G architecture, network slicing is very critical and will play an important role in the enterprise setting as well. This can be achieved through the NSSF function in 5G architecture. Within the corporate environment the requirements could be that the VPN connection to the corporate intranet should drop when the employee is out of the physical location. This can be provided by the UPF function in the 5G architecture. As the corporate location represents a limited physical area, the UPF serving that area can be collocated within the MEC site. Specific rules need to be configured in the PCF to provide traffic steering to the dedicated UPF when the enterprise users are trying to access the enterprise applications.