shutdown/no shutdown Disables or enables an interface.
8 Chapter 1: Review of Cisco IOS for Routers and Switches
Summary of Cisco IOS CLI Commands
The key points to remember about Cisco IOS CLI commands are as follows:
?– A basic router or switch con?¬?guration includes the provision of hostnames for identi?¬?cation,
the provision of passwords for security, and the assignment of IP addresses for connectivity.
?– You use the CLI to enter commands.
?– You use the con?¬?gure terminal command to enter global con?¬?guration mode. To exit global
con?¬?guration mode, you can use the end command or press Ctrl-Z.
?– The CLI provides context-sensitive help, console error messages, and a command history
buffer.
Chapter Summary
The list that follows summarizes the key points that were discussed in this chapter:
?– The Cisco IOS CLI has hierarchical con?¬?guration modes for con?¬?guring routers and
switches.
?– You will use this interface as a means to implement a basic switched and routed internetwork
within the con?¬?nes of a small network design.
A basic router or switch con?¬?guration includes the provision of hostnames for identi?¬?cation, the
provision of passwords for security, and the assignment of IP addresses for connectivity.
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