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CCNA 2 v3.1 Module 2 Introduction to Routers
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The Purpose of Cisco IOS Software
• Basic routing and switching functions
• Reliable and secure access to networked resources
• Network scalability
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Router User Interface
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Router User Interface Modes
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Cisco IOS Naming Conventions
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Operating Cisco IOS Software
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Steps in Router Initialization
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Setup Mode
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Router LED Indicators
Cisco routers use LED indicators to provide status information. LED indicators will vary for different Cisco router models.
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The Initial Router Bootup
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Examining the Initial Bootup Output
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Examining the Initial Bootup Output continued
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Establish a Console Session
• All Cisco routers include an EIA/TIA-232 asynchronous serial console port. The console port is an RJ-45.
• Use an RJ-45 to RJ45 rollover cable with a female RJ-45 to DB-9 adapter to connect a PC to the console port
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Router Modes
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User Mode Commands
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Privileged Mode Commands
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clock set Command
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Using IOS Command history
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The User Interface Error Indicator
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The show version Command
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Summary