This document discusses cabling for LANs and WANs. It covers topics like Ethernet cabling and connectors used in campus networks, the use of UTP cable for implementing Ethernet, and networking devices like repeaters, hubs, bridges, and switches. The document also discusses WAN connectivity using serial connections, ISDN, DSL, and the role of routers in providing connectivity within the LAN and to the WAN.

1. 1© 2004, Cisco Systems, Inc. All rights reserved.
Module 5
Cabling LANs and WANs

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Objectives

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LAN and Physical Layer

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LAN and Physical Layer

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Ethernet in the Campus

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Ethernet Media and Connector Requirements

7. 777© 2004, Cisco Systems, Inc. All rights reserved.
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Connection Media

8. 888© 2004, Cisco Systems, Inc. All rights reserved.
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UTP Implementation

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UTP Implementation

10. 101010© 2004, Cisco Systems, Inc. All rights reserved.
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UTP Implementation

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UTP Implementation

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UTP Implementation

13. 131313© 2004, Cisco Systems, Inc. All rights reserved.
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UTP Implementation

14. 141414© 2004, Cisco Systems, Inc. All rights reserved.
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UTP Implementation

15. 151515© 2004, Cisco Systems, Inc. All rights reserved.
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Repeaters

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Hubs

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Wireless

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Bridges

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Switches
•A switch is sometimes described as a multiport bridge .
•Switches have multiports
•Switching is a technology that alleviates congestion in Ethernet LANs by
reducing the traffic and increasing the bandwidth
•Replacing hubs

20. 202020© 2004, Cisco Systems, Inc. All rights reserved.
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Switches

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Switches

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Host Connectivity

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Host Connectivity

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Peer-to-Peer

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Client/Server

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Client/Server

27. 272727© 2004, Cisco Systems, Inc. All rights reserved.
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WAN Physical Layer

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WAN Serial Connections

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WAN Serial Connections

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Routers and Serial Connections
• Routers are responsible for routing data packets from source to
destination within the LAN,
• For providing connectivity to the WAN

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Routers and Serial Connections

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Routers and Serial Connections

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Routers and Serial Connections

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Routers and ISDN BRI Connections

35. 353535© 2004, Cisco Systems, Inc. All rights reserved.
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Routers and DSL Connections

36. 363636© 2004, Cisco Systems, Inc. All rights reserved.
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Summary