# Technical Architecture
PLVR is closely related to several modules in the overall technical architecture. The related modules are as follows:

| **Module**                  | **Description**                            |
| --------------------------- | ------------------------------------------ |
| Physical Link               | Refers to the physical fiber optic line, which can be subdivided into three segments based on the various locations of the link: the customer node to the access point of the POP room in the FEB CLOUD CORE campus dedicated line, the in-building line of the POP building, and the in-building line from the access point of the POP room to the PE of FEB CLOUD CORE |
| Virtual Port                | Refers to the virtualized port accessed by the physical link. A virtual port can aggregate multiple physical ports, and a physical port can only belong to one virtual port |
| Virtual Channel             | Refers to the multiple channels of a dedicated line segmented by VLAN. Customers can manage each virtual channel separately, and business is isolated between different virtual channels |
| Cloud Network               | FEB CLOUD CORE global backbone network, supporting the addition of various network instances |

The technical architecture is illustrated in the diagram below:
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