The dircommand, to list the contents of the NVRAM.Ī number of different files are shown, but the one we’re interested in is the file called “ startup-config”, which defines the configuration at startup (as the name suggests!). The pwdcommand, to display the current directory and check that you're displaying the NVRAM directory. The cd(change directory) command, to change the default file system. To display the contents of the NVRAM, use: Non-volatile memory ( NVRAM) is a type of memory that stores data even when it’s no longer connected to a power supply. It’s the name of the current Cisco IOS file image that is running in RAM. VPNRouter# dirĢ55744000 bytes total (221896413 bytes free)Ī number of files are stored in flash memory but only the first one is of interest to us. As a result, the #symbol is appended to the flash listing to indicate that it’s a bootable disk.īecause the flash file system is the default file system, the dircommand lists the contents in flash memory.

Note that the asterisk *in front of the flash file system indicates that it’s the current default file system the bootable IOS is located in flash memory. Levels of authorization include read only ( ro), write only ( wo), and read-write ( rw).

This command provides some useful information, such as: The show file systems command lists all file systems available on a Cisco 1941 or on a layer 3 switch. The directories available depend on the device. The administrator can also create subdirectories in flash memory or on disk. The Cisco IFS ( IOS File System) enables an administrator to navigate the various directories and list the files in a directory. In a large network, you have lots of interconnected equipment and it’s impossible to configure all of this equipment manually using step-by-step commands.įortunately, there are various ways of copying or updating your configurations. Quiz: Configure the VLANs on Your Network Use VLANs to Reduce Your Broadcast Domains

Practice Resolving a Router Fault on Your Network

Perform the Initial Configuration of Your Network Routers Quiz: Configure Your Corporate Network Using Packet Tracer Practice Troubleshooting the WiFi and Switch on Your Network Understand the Command Line Interface (CLI)Ĭonfigure Basic Parameters in a Layer 2 SwitchĬonfigure Secure Remote Access on Your Switch Quiz: Install Packet Tracer on Your ComputerĬonfigure the IP Parameters for End DevicesĪdd a Wireless Access Point to the Agency’s Network Install Packet Tracer on Your Operating System

Cisco packet tracer practical examples