Network Bridge

Physical

Is a networking device that connects the larger LAN networks with the group of smaller LAN networks. Have the control of which packages allow to go through.

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Virtual

Virtual network device behaves like a Virtual Switch (vSwitch). It's like a Network Switch that other devices can talk to each other.

Network bridge - ArchWiki (archlinux.org)

There are multiple options for virtualised devices to talk to each other. The two commons are: