Day 30. Ethernet Switching
CCNA 200-301 Exam Topics
Explain the role and function of network components
Describe switching concepts
Key Topics
Today we review the concepts behind Ethernet switching, including the history of switching development, how switching actually works, and the variety of switch features. We also review the details of Ethernet operation.
Evolution to Switching
Today’s LANs almost exclusively use switches to interconnect end devices; however, this was not always the case. Initially, devices were connected to a physical bus, a long run of coaxial backbone cabling. With the introduction of 10BASE-T and UTP cabling, the hub gained popularity as a cheaper, easier way to connect devices. But even 10BASE-T with hubs had ...
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