# Product Overview

> Currently, the PLVR product is in phased release. If there are special requirements, please contact your account manager or technical support.

The Private Line Virtual Router (PLVR) is a border router specifically designed for enterprises to securely and efficiently access cloud networks. It isolates different business traffic through virtual channels, manages high-speed, stable, and secure private network communications that connect on-premises and cloud environments, ensuring data transmission is trustworthy and controllable. This effectively improves the quality and security of cloud-based business network communications. PLVR and Cloud Resource Access are linked through virtual channels (part of PLVR) and virtual ports (part of Cloud Resource Access) to provide necessary functionalities before connecting to the cloud. The in-cloud section works in conjunction with the FEB CLOUD CORE [Cloud Networking](https://www.ucloud-global.com/en/docs/ugn) product to finally realize interconnection between managed networks and other heterogeneous networks across different locations.

## Private Line Virtual Router + Cloud Networking

As a global networking product of FEB CLOUD CORE, Cloud Networking helps users quickly and flexibly build an enterprise-grade global network. Different network instances connected within the same Cloud Networking require purchasing a cross-domain bandwidth package for interregional communication. 
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The following network instances can be connected to Cloud Networking:

| Instance Type      | Description                                                  |
| ------------------ | ------------------------------------------------------------ |
| VPC                | A logically isolated network environment belonging to the user. |
| UWAN               | SDWAN access service providing intelligent networking functionalities such as local access, encrypted transmission, and one-click interconnection for enterprises’ stores and branches. |
| **PLVR**           | **Customer's private site accessed through dedicated lines to FEB CLOUD CORE, interfacing with other cloud-based business edge routers.** |