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Chapter 5 : Managing Cisco IOS Software / Overview


Router Boot Sequence and Verification


Overview



This page summarizes the topics discussed in this module.
A Cisco router cannot operate without the Cisco IOS. Each Cisco router has a predetermined boot-up sequence that is used to locate and load the Cisco IOS. This module will describe the stages and importance of this bootup procedure.
Cisco internetworking devices use several different files to operate, such as Cisco IOS images and configuration files. A network administrator must manage these files to ensure that the proper versions are used and that necessary backups are performed. This module also describes the Cisco file system and provides the tools to manage it effectively.
This module covers some of the objectives for the CCNA 640-801, INTRO 640-821, and ICND 640-811 exams. -
Students who complete this module should be able to perform the following tasks:
  • Identify the stages of the router boot sequence
  • Determine how a Cisco device locates and loads the Cisco IOS
  • Use the boot system command
  • Identify the configuration register values
  • Briefly describe the files used by the Cisco IOS and their functions
  • List the locations of the different file types on a router
  • Briefly describe the parts of the IOS name
  • Use TFTP and copy-and-paste to save and restore configuration files
  • Use TFTP to load an IOS image
  • Use XModem to load an IOS image
Use show commands to verify the file system 

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