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Any Questions?. Chapter 8 - Operating Cisco LAN Switches. Accessing the Cisco Catalyst 2960 Switch CLI Configuring Cisco IOS Software. 1. In what modes can you execute the command show mac-address-table ? a. User mode b. Enable mode c. Global configuration mode d. Setup mode

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  1. Any Questions?

  2. Chapter 8 -Operating Cisco LAN Switches • Accessing the Cisco Catalyst 2960 Switch CLI • Configuring Cisco IOS Software

  3. 1. In what modes can you execute the command show mac-address-table? a. User mode b. Enable mode c. Global configuration mode d. Setup mode e. Interface configuration mode

  4. 1. In what modes can you execute the command show mac-address-table? a. User mode b. Enable mode c. Global configuration mode d. Setup mode e. Interface configuration mode Answer: A and B

  5. 2. In which of the following modes of the CLI could you issue a command to reboot the switch? a. User mode b. Enable mode c. Global configuration mode d. Interface configuration mode

  6. 2. In which of the following modes of the CLI could you issue a command to reboot the switch? a. User mode b. Enable mode c. Global configuration mode d. Interface configuration mode Answer: B

  7. 3. Which of the following is a difference between Telnet and SSH as supported by a Cisco switch? a. SSH encrypts the passwords used at login, but not other traffic; Telnet encrypts nothing. b. SSH encrypts all data exchange, including login passwords; Telnet encrypts nothing. c. Telnet is used from Microsoft operating systems, and SSH is used from UNIX and Linux operating systems. d. Telnet encrypts only password exchanges; SSH encrypts all data exchanges

  8. 3. Which of the following is a difference between Telnet and SSH as supported by a Cisco switch? a. SSH encrypts the passwords used at login, but not other traffic; Telnet encrypts nothing. b. SSH encrypts all data exchange, including login passwords; Telnet encrypts nothing. c. Telnet is used from Microsoft operating systems, and SSH is used from UNIX and Linux operating systems. d. Telnet encrypts only password exchanges; SSH encrypts all data exchanges Answer: B

  9. 4. What type of switch memory is used to store the configuration used by the switch when it is up and working? a. RAM b. ROM c. Flash d. NVRAM e. Bubble

  10. 4. What type of switch memory is used to store the configuration used by the switch when it is up and working? a. RAM b. ROM c. Flash d. NVRAM e. Bubble Answer: A

  11. 5. What command copies the configuration from RAM into NVRAM? a. copy running-config tftp b. copy tftp running-config c. copy running-config start-up-config d. copy start-up-config running-config e. copy startup-config running-config f. copy running-config startup-config

  12. 5. What command copies the configuration from RAM into NVRAM? a. copy running-config tftp b. copy tftp running-config c. copy running-config start-up-config d. copy start-up-config running-config e. copy startup-config running-config f. copy running-config startup-config Answer: F

  13. 6. Which mode prompts the user for basic configuration information? a. User mode b. Enable mode c. Global configuration mode d. Setup mode e. Interface configuration mode

  14. 6. Which mode prompts the user for basic configuration information? a. User mode b. Enable mode c. Global configuration mode d. Setup mode e. Interface configuration mode Answer: D

  15. 7. A switch user is currently in console line configuration mode. Which of the followin would place the user in enable mode? a. Using the exit command once b. Using the exit command twice in a row c. Pressing the Ctrl-z key sequence d. Using the quit command

  16. 7. A switch user is currently in console line configuration mode. Which of the followin would place the user in enable mode? a. Using the exit command once b. Using the exit command twice in a row c. Pressing the Ctrl-z key sequence d. Using the quit command Answer: B and C

  17. Any Questions?

  18. Accessing the Catalyst Switch CLI • We are using 2950 switches • A little older, but same commands • Switch has physical ports • Interfaces • Fastethernet 0/1-fastethernet 0/24

  19. Switch Status Lights

  20. SYST LED • Off: The switch is not powered on • On (green): The switch is powered on and operational (Cisco IOS has been loaded) • On (amber): The switch’s Power-On Self Test (POST) process failed, and the Cisco IOS did not load.

  21. STAT LED in port mode • Off: The link is not working. • Solid green: The link is working, but there’s no current traffic. • Flashing green: The link is working, and traffic is currently passing over the interface. • Flashing amber: The interface is administratively disabled or has been dynamically disabled for a variety of reasons.

  22. Any Questions?

  23. Accessing the IOS • CLI • Network • telnet • Ssh • HTTP • Console • Rollover cable

  24. Console Port

  25. Console Port Settings • 9600 bits/second • No hardware flow control • 8-bit ASCII • No stop bits • 1 parity bit

  26. Telnet and SSH • IP Addresses must be configured • Network connectivity must be established • Telnet • Clear Text transmission • SSH • Encrypted-More secure

  27. Passwords • Can set passwords for different Access methods • Console • line console 0 • login • password faith • Telnet • line vty 0 15 • login • password love

  28. Any Questions?

  29. Command Modes • User Mode • > prompt • Less access • Can show but not change • Privelaged Mode • # prompt • Can enter configuration modes • Enable and enable secret passwords

  30. CLI Help • ? • Displays possible commands • Keyboard shortcuts • For retyping without and fixing entries

  31. Debug and Show commands • Debug • Displays details as they come in • Routing updates • Can overflow capacity • Terminal monitor • Display debug to telnet sessions • Logging synchronous • Return to prompt • Show • Shows static details • Routing table • Configuration • Interface status

  32. Configuration submodes • From Privileged prompt • Configure Terminal • Configure from your keyboard • Interface Config • Subinterface Config

  33. Config Modes

  34. Switch Config Files & Memory

  35. Running Vs. Startup

  36. Any Questions?

  37. Copy Commands • Copy configurations and IOS • copy {from location} {to location} • Copy running-config startup-config • Copy run start • Saves your changes • Copy start run • Erase changes since last copy • Reload • Reboot the router/switch

  38. Setup Mode • If there is no configuration loaded (startup Config) • Basic connectivity connections

  39. Key Topics

  40. Any Questions?

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