Author: upravnik

Cisco uses the term interface to refer to physical ports on an IOS device. Interfaces can be configured with different settings, depending on the type of the interface and whether you are configuring an interface on a router or on Read More …

Beginning with the IOS 12.3, the privileged-exec mode commands (such as show running-configuration, show interface status, etc.) can be executed within the global configuration mode and its submodes. This allows you to execute privileged-exec mode commands without needing to exit Read More …

Adding a description to an interface on a Cisco device doesn’t provide any extra functionality, but it is useful for administrative purposes, since it will help you to remember the interface function. A description of an interface is locally significant and can Read More …

We’ve already mentioned a couple of show commands in the previous sections, so you should already we somewhat aware of this command. This command is used to display the device’s configuration, statistics, command history, interface status… The show command is invoked Read More …

In this article we will go through some basic IOS commands. Hostname command The hostname command is used to configure the device hostname. Because this command changes a device configuration, it must be entered in the global configuration mode. After Read More …

CIsco devices store commands in two configuration files: startup configuration running configuration   Immediately after you type a command in the global configuration mode, it will be stored in the running configuration. A running configuration resides in a device’s RAM, Read More …

You can use the question mark to display a list of commands available in the prompt you are in: If the output spans more than one page, press the spacebar to display the following page of commands, or press Enter Read More …

We’ve already learned that IOS has three main command modes: the user exec, privileged exec, and the global configuration modes. Each of these modes serves a different purpose and has its own set of commands. In this lesson we will Read More …

When you first power-on a newly purchashed Cisco device, it will perform a power-on self-test (POST) to discover the hardware components and verify that all components work properly. If the POST is successful, the device will enter the setup mode. Read More …

IOS (Internetwork Operating System) is a multitasking operating system used on most Cisco routers and switches. IOS has a command-line interface with the predetermined number of multiple-word commands. This operating system is used to configure routing, switching, internetworking and other Read More …