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Reload

As explained in Acing the CCNA Exam: Volume 2 Advanced Networking and Security

reload is a Cisco IOS command that restarts a network device.

reload restarts a Cisco IOS device after configuration changes or an IOS image upgrade. The command requires confirmation and interrupts service during reboot. section 8.3

Use reload safely by following these operational steps:

  • Save the configuration with write, write memory, or copy running-config startup-config before reloading. section 8.3
  • Confirm the configured boot image with show boot, then issue reload and press Enter at the confirmation prompt. section 8.3
  • Expect Telnet or SSH connectivity to end during reboot; use the console connection to watch POST, IOS loading, and the return to the CLI. section 8.3
  • Verify the running IOS image afterward with show version. section 8.3

Reboot after saving

SW1# write memory Building configuration... [OK] SW1# reload Proceed with reload? [confirm] Press Enter to confirm the reboot.

How Acing the CCNA Exam: Volume 2 Advanced Networking and Security covers it

How deep it goes
Explains saving, confirmation, connectivity impact, console observation, and post-reboot verification, but not reload scheduling.
Examples
Uses write memory followed by reload, confirmation at the prompt, and show version output after reboot.
What it assumes
Assumes Cisco IOS CLI access and teaches configuration saving, boot-image selection, reboot confirmation, and verification.
What you can do after
Operate/configure a Cisco IOS device reboot and verify its post-reboot IOS image.
How it connects
Connects configuration saving, boot system, show boot, show version, IOS image upgrades, Telnet, SSH, and console access.
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