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PVR is an abbreviation that stands for “Private Virtual Routing.” It is a term used in computer networking to describe a type of virtual routing protocol that allows multiple virtual routing and forwarding (VRF) instances to be created within a single physical router.

In a PVR setup, each VRF instance functions as a separate, independent routing domain, with its own routing table, forwarding rules, and network policies. This allows multiple independent networks to be hosted on the same physical router, while still maintaining isolation and security between the different networks.

PVR is commonly used in enterprise networking environments where it is necessary to host multiple virtual networks on a single router, such as in cloud computing or software-defined networking (SDN) environments. It allows organizations to create and manage multiple virtual networks on a single router without having to purchase and maintain multiple physical routers.

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