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Cisco® Field Manual: Catalyst® Switch Configuration by Steve McQuerry, Dave Hucaby

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1-2. Cisco Internetwork Operating System (IOS) Software

  • Cisco IOS Software supports user access by CLI or by a web browser.

  • The CLI can be accessed through the console port or through Telnet.

  • Users can execute Cisco IOS Software commands from a user level or from a privileged level. User level offers basic system information and remote connectivity commands. Privileged level offers complete access to all switch information, configuration editing, and debugging commands.

  • Cisco IOS Software offers many levels of configuration modes, enabling you to change the configuration for a variety of switch resources.

  • Cisco IOS Software offers a VLAN database mode to configure and modify VLAN and Virtual Terminal Protocol (VTP) information.

  • A context-sensitive ...

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