Basic switch and router configuration

Switch configuration The Cisco IOS (Internetwork Operating System) is a command-line interface used by nearly all current Cisco routers and switches. The IOS provides the mechanism for configuration. The IOS is structured into several modes 1. User mode (User EXEC): we can identify by > symbol. Router> User mode 2. Privileged mode: we can identify by # symbol. Router# Previlage mode 3. Global configuration mode: we can identify by (config)# symbol. Router(config)# Global Configuration Mode

Navigating command line interface modes User mode (User EXEC): Allows a person to access only a limited number of basic monitoring commands. show, telnet, ping commands. It can be recognized by “>” sign. . Privileged mode: is password protected, and allows the use of all User mode commands available on the system and some other commands. It can be recognised by “#” sign. Show commands are mainly executable here. * To change from user mode to privileged mode enter the enable command and to return enter the disable or exit command.

Navigating command line interface modes 3. Global configuration mode: To configure global switch parameters such as the switch hostname or the switch IP address used for switch management purposes. It can be recognised by “(config)# “. * to enter this mode you need to enter the configure terminal command from privileged mode. * to return enter the exit command.

Navigating command line interface modes There are many other modes, for example: “Interface Configuration Mode”. This mode lets you configure an interface and it can be recognised by “(config-if)#”. To return you need to enter the exit command.

Navigating command line interface modes

Navigating command line interface modes