Switch 5 - Transparent Bridging
by Jeff Tyson

Link Original - http://computer.howstuffworks.com/lan-switch4.htm

Most Ethernet LAN switches use a very cool system called transparent bridging to create their address lookup tables. Transparent bridging is a technology that allows a switch to learn everything it needs to know about the location of nodes on the network without the network administrator having to do anything. Transparent bridging has five parts:

Here's how it works:

Click on the menu terms to learn more about how transparent
bridging works.

In our example, two nodes share segment A, while the switch creates independent segments for Node B and Node D. In an ideal LAN-switched network, every node would have its own segment. This would eliminate the possibility of collisions and also the need for filtering.

Switch 1 - How LAN Switches Work
Switch 2 - Networking Basics
Switch 3 - Adding Switches
Switch 4 - Switching Technologies
Switch 5 - Transparent Bridging
Switch 6 - Redundancy and Broadcast Storms
Switch 7 - Spanning Trees
Switch 8 - Routers and Layer 3 Switching
Switch 9 - VLSANs