Chapter 1. Switching Connectivity
This book is all about switches, which are network devices that provide local-area network (LAN) connectivity for end devices such as servers, PCs, and printers. This book focuses almost entirely on Ethernet switches, which have become the most popular Layer 2 devices in modern networks. Cisco has traditionally been famous for their router, which is a Layer 3 device. In the past decade or so, Cisco has heavily invested in producing market-leading LAN switches, and consequently now holds the number one position worldwide in terms of LAN switch sales. In the past few years, switches have also evolved from being just Layer 2 devices that understand only Layer 2 operations to intelligent devices that possess an understanding ...
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