The Foundation Summary is a collection of tables that provides a convenient review of many key concepts in this chapter. If you are already comfortable with the topics in this chapter, this summary can help you recall a few details. If you just read this chapter, this review should help solidify some key facts. If you are doing your final preparation before the exam, the following tables are a convenient way to review the day before the exam.
Table 4-4. File-Management Commands
Task | Command Syntax |
|---|
Navigate to the directory of Flash | dir [flash:[directory]] |
Change directory | cd flash:directory |
Copy a file between Flash and a TFTP server | copy flash:[filename] tftp: or copy tftp: flash:[filename] |
Delete a file in Flash | delete flash:filename |
Clear Flash contents | erase flash: or format flash: |
Save the running configuration | copy running-config startup-config or copy running-config tftp: |
Overwrite the running configuration | copy startup-config running-config |
Overwrite the permanent configuration | copy tftp: startup-config or erase startup-config |
Table 4-5. Troubleshooting Commands
Task | Command Syntax |
|---|
Display the current running environment and IOS version | show version |
Display the running configuration | show running-config [interface type mod/num | vlan vlan-id | module mod] |
Display the permanent configuration | show startup-config or show config |
Display all technical support information | show tech-support |
Verify an image checksum | verify flash:filename |
Enable or disable debugging | debug keywords no debug keywords or no debug all or undebug all |
Display CDP information | show cdp interface [type mod/num] or show cdp neighbors [type mod/num | vlan vlan-id] [detail] or show cdp entry * protocol |