Cisco switch and switches have a working framework called InterOperating System (IOS). The CLI is the essential UI of the Cisco IOS for their switch and switches. Order line interface (CLI) upholds various IOS mode:

  • Client EXEC Mode
  • Advantaged EXEC Mode
  • Worldwide Configuration Mode
  • Arrangement Mode
  • ROM Monitor Mode

Also, the Global setup mode contains sub-arrangement Modes. The figure underneath delineates the Cisco IOS sub-arrangement modes additionally called broadened setup mode or explicit design method of the worldwide design.

Client mode

Client Mode is additionally known is User EXEC mode is the main IOS mode a client entered and gain admittance to the switch in the wake of signing in. We can perceive client mode by the > brief after the name of the switch/switch. The switch default name is Router and switch default name is Switch. We can change the default hostname from Global arrangement mode utilizing the hostname order. We will clarify the order later in coming articles.

The client mode is typically secret word safeguarded. You want a legitimate username and secret phrase to get to this mode. This mode permits the client to execute just the fundamental orders, like those that show the framework’s status. The switch can’t be arranged or restarted from this mode. The figure underneath delineates the client mode at CLI.

Arrangement Mode

Whenever a Cisco switch turned on, it first runs a POST test to ensure all equipment is turned out great, and afterward switch attempts to track down the running arrangement. Assuming the switch observes the arrangement it would stack that. Assuming that it neglects to observe the arrangement, it would begin the arrangement mode. The arrangement mode is a bit by bit process which assists you with designing essential parts of the switch. In this mode, the switch will ask you inquiries about the principal settings in a succession for essential design values. Contingent upon answers given by you, the switch will consequently fabricate introductory design.


ROMMON Mode otherwise called ROM Monitor Mode works if during the boot cycle, a switch doesn’t observe a substantial IOS picture and neglected to stack IOS in RAM, it would enter in ROMMON mode. We can likewise get to ROMMON Mode physically.

It is the demonstrative mode very much like protected mode in windows. Naturally, the switch doesn’t enter in ROMMON Mode except if it neglects to observe the IOS picture. To enter physically in ROMMON mode, execute reload order from special executive mode and afterward press CTRL + C key blend or break during the initial 60 seconds of startup. We can likewise involve this mode for secret word recuperation. Brief for this mode is rommon>