What Is an Ethernet Bridge?
An Ethernet Bridge is a network device that operates at the Data Link Layer of the OSI reference model.
Its primary function is to connect and bridge segments within the same network. Using a learning mechanism, it creates a table that associates MAC addresses with specific segments and employs filtering to forward network packets to the appropriate segment.
Ethernet Bridges find applications in various scenarios, including network expansion by connecting segments within the same network, enhancing network reliability through redundant configurations, and bolstering security with the use of Access Control Lists (ACLs) to control network access.