Transcription of CHAPTER 8 BACKBONE NETWORKS - Jake Messinger
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CHAPTER 8 BACKBONE NETWORKS - Jake Messinger
CHAPTER 8 BACKBONE NETWORKS CHAPTER Summary This CHAPTER examines BACKBONE NETWORKS (BNs) that are used in the distribution layer (within-building backbones) and the core layer (campus backbones). We discuss the three primary BACKBONE architectures and the recommended best practice design guidelines on when to use them. The CHAPTER ends with a discussion of how to improve BN performance and of the future of BNs. Learning Objectives After reading this CHAPTER , students should: Understand the Internetworking devices used in BNs Understand the switched BACKBONE architecture Understand the routed BACKBONE architecture Understand Virtual LAN architecture Understand the best practice recommendations for BACKBONE design Be aware of ways to improve BN performance Key Terms chassis switch forwarding equivalence class (FEC) IEEE label switched router (LSR) layer-2 switch main distribution facility (MDF) module multiprotocol label switching (MPLS) multiswitch VLAN patch cables rack routed BACKBONE router single-switch VLAN switched BACKBONE virtual LAN (VLAN)9 VLAN ID VLAN switch VLAN tag VLAN trunk Instructor s Manual to Accompany: Business Data Communications and Networking, 12e by Fitzgerald/Dennis 2015 John Wiley & Sons, Inc.
Switched backbone networks use a star topology with one device, usually a switch, at its center. The traditional backbone circuit and set of routers or bridges is replaced by one switch and a …
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