This is the configuration file that IOS reads when the routerīoots up. NVRAMOn the router, NVRAM is used to store the startupĬonfiguration. Is basically used for all system operational storage requirements. On a router, RAM is used to hold IOS system tables and buffers. It is used in PCs to store running applications andĭata. RAMRAM is very fast memory that loses its information when Memory is also used to hold bootstrap software. System information can also be copied to Flash.
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Used to store one or more Cisco IOS software images. The bootstrap software is invoked when the router boots up.įlash≿lash memory is located on a processor board SIMM butĬan be expanded using PCMCIA (removable) cards. Router is called the bootstrap software and is usually stored in The initial software that runs on a Cisco It is available on a router's processor board. ROMROM is generally the memory on a chip or multiple chips. There are usually four types of memory on a Cisco router: TheĬPU must have access to data in memory to make decisions or to get Running in the router requires the CPU or processor to make routing and bridgingĭecisions, maintain routing tables, and other system management functions. Two examples of processors thatĬisco uses are the Motorola 68030 and the Orion/R4600. Like a computer, a router has a CPU that varies in performance andĬapabilities depending on the router platform. It is used to configure, monitor, and troubleshoot the system. The Cisco IOS software is network system software that runs on Cisco routersĪnd switches. Understand upgrading and release information. Learn about Cisco IOS troubleshooting techniques. Work with the Cisco IOS Command Line Interface (CLI) and common Understand Cisco IOS system architecture components.