Throughout the book, you will see the following icons used for the varying types of switches:

ATM Switch
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Catalyst 5000

Layer 3 (MLS) Routing Switch

Layer 3 (8500) Switching Router
In addition, you will see the usual battery of network device, peripheral, topology, and connection icons associated with Cisco Systems documentation. These icons are as follows:

Router

Bridge

Repeater

Hub

PBX/SWITCH
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MAU
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Modem

File Server
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Printer
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Phone

Terminal

Workstation

PC

Sun Workstation

Macintosh

Telecommuter

Network Cloud

FDDI Ring

Token Ring
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Line: Ethernet
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Line: Serial
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Line: Circuit Switched