1) POST: Power On Self Test: Used to test the router hardware
- Then load the Bootstrap Program
2) Locate & Load IOS Software into ram
- Bootstrap program locates the ios software and loads it into RAM.
- IOS file located in in one of three places:
1. flash memory (default option),
2. a TFTP server,
3. or another location indicated in the startup configuration file
3) Locate and execute the startup configuration file or enter setup mode.
- Startup file is copied from nvrom to RAM then router is started.
Refferences:
- http://www.orbit-computer-solutions.com/Cisco-Routers-Boot-Process.php