Introduction to WANS

Introduction to routers in a WAN

Continued

Download a decimal to 8 bit binary convereter

 

NVRAM has the following characteristics and functions:

• Provides storage for the startup configuration file
• Retains content when a router is powered down or restarted

Flash memory has the following characteristics and functions:

• Holds the IOS image
• Allows software to be updated without removing and replacing chips on the processor
• Retains content when a router is powered down or restarted
• Can store multiple versions of IOS software
• Is a type of electrically erasable programmable read-only memory (EEPROM)

ROM has the following characteristics and functions:

• Maintains instructions for power-on self test (POST) diagnostics
• Stores bootstrap program and basic operating system software
• Requires replacing pluggable chips on the motherboard for software upgrades

Interfaces have the following characteristics and functions:

• Connect routers to a network for packet entry and exit
• Can be on the motherboard or on a separate module

 

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