Subject to restrictions as set forth in subparagraph Use, duplication, or disclosure by the Government is Program load complete, entry point: 0x80008000, size: 0xa8d168
CURRENT CISCO IOS VERSION 64 BIT
Main memory is configured to 64 bit mode with parity disabled Example 4-1 Cisco 3640 Router Console Output at Startup System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)Ĭopyright (c) 1999 by Cisco Systems, Inc.Ĭ3600 processor with 98304 Kbytes of main memory Notice the processor, interface, and memory information that is Routers also have an auxiliary port that is very similar to the console port,īut is typically used for modem connection for remote router management.Įxample 4-1 shows the console output of a new Cisco 3640 router that has justīeen started.
CURRENT CISCO IOS VERSION SERIAL
The console port can be connected to aĬomputer's serial connection to gain terminal access to the router.
CURRENT CISCO IOS VERSION DRIVERS
IOS has device drivers to support these various interface types.Īll Cisco routers have a console port that provides an EIA/TIA-232Īsynchronous serial connection. Similar to the driver software on a computer with parallel ports and USB ports, The most common types of interfaces are Ethernet and serial. Interfaces are inputĪnd output connections to the router that carries data that needs to be routed It is extremely fast memory and is persistent across reboots.Īlthough CPU and memory are required components to run IOS, a router mustĪlso have various interfaces to allow packet forwarding. 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. 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.
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