Advanced Networking with CISCO (CCNA) > Working With Cisco Devices

Router Memory

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Routers function similarly to miniature computers, including memory, a processor, and an operating system.

A minimum of 256 MB of RAM would be preferable. This is to ensure that everything is processed as quickly as possible. If money isn't an issue, a wireless router with 512 MB or 1 GB of RAM is the way to go.

The display memory exec command is frequently used to determine the amount of free memory on a router. This is a major command used to see the statistics about the router's RAM in troubleshooting scenarios where router performance is the emphasis. Use the show processes memory EXEC command to see how much memory is being consumed.

It is better to prepare your network for faster speeds and more pressure rather than waiting for it to underperform or break as networks become faster and more complicated. Purchasing a router with extra Flash memory and RAM helps you to effortlessly grow and expand your network.

The common types of memory in a router are ROM, RAM, and flash.

  • RAM is where all data is processed in real time.
  • ROM allows the router to boot up when you turn it on.
  • Flash is the place where the operating system is stored.
  • The router has to be rebooted when it loses power or if there are changes in hardware settings.

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  2. IP Address Classes
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  6. IPv6 Addressing Part -1
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  2. Router Memory
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  5. Practical: Router Configuration
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