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CCNA 2 v3.0 Module 5 Managing Cisco IOS Software

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Objectives

• Router boot sequence and verification

• Managing the Cisco file system

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Router Startup Sequence

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Locating Cisco IOS Software

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Using the boot system Command

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Configuration Register Values

The order in which the router looks for system bootstrap information depends on the Boot Field setting in the configuration register. You can change the default configuration register setting with the global configuration mode command config-register. Use a hexadecimal number as the argument for this command.

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Identifying Boot Image Source

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Software Components in Memory

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Fields in the IOS Name

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Managing Configuration Files Using TFTP

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Managing Configuration Files Using Copy and Paste

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Managing IOS Images Using TFTP

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The confreg Command

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Managing IOS Using XModem

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The tftpdnld Command

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File System Verification

• There are several commands that can be used to verify the router file system.

show version

show flash

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The show flash Command