Cisco IOS Switch Save Configuration CCNA 200-301
Cisco IOS Switch Save Configuration CCNA 200-301
⏱️TIMESTAMPS⏱️
00:01 CCIE Academy Intro
00:51 Save Configuration (Configuration Files)
01:13 Cisco Switch
02:08 Cisco Layer 2 Switch in Packet Tracer
02:16 Load IOS in Packet Tracer
04:11 Change Hostname in Packet Tracer
04:17 Assign Switch Banner MOTD (Message Of The Day)
04:59 How to Assign Enable Password
06:20 Show Running-Config
07:25 How to Save Configuration
09:54 Show Startup-Config
10:05 How to Restart Switch in Cisco Packet Tracer
10:47 Configuration Files
11:18 Startup-Config
12:09 Running-Config
13:48 Change Hostname
15:03 Remove Banner MOTD (Message Of The Day)
15:14 How to Shutdown an Interface
16:30 How to Restore Previous Configuration in Cisco Switch
18:40 How to erase all Configuration
Deep Web Vs Dark Web vs Surface Web
https://www.youtube.com/watch?v=ulDgsn1XA4I&t=2s
Save Configurations
Configuration Files
You now know how to perform basic configuration on a switch, including passwords and banner messages. This topic will show you how to save your configurations.
There are two system files that store the device configuration:
startup-config – This is the saved configuration file that is stored in NVRAM. It contains all the commands that will be used by the device upon startup or reboot. Flash does not lose its contents when the device is powered off.
running-config – This is stored in Random Access Memory (RAM). It reflects the current configuration. Modifying a running configuration affects the operation of a Cisco device immediately. RAM is volatile memory. It loses all of its content when the device is powered off or restarted.
The show running-config privileged EXEC mode command is used to view the running-config. As shown in the example, the command will list the complete configuration currently stored in RAM.
Sw-Floor-1# show running-config
Building configuration…
Current configuration: 1351 bytes
!
! Last configuration change at 00:01:20 UTC Mon Mar 1, 1993
!
version 15.0
no service pad
service timestamps debug DateTime msec
service timestamps log DateTime msec
service password-encryption
!
hostname Sw-Floor-1
!
(output omitted)
To view the startup configuration file, use the show startup-config privileged EXEC command.
If the power to the device is lost, or if the device is restarted, all configuration changes will be lost unless they have been saved. To save changes made to the running configuration to the startup configuration file, use the copy running-config startup-config privileged EXEC mode command.
Alter the Running Configuration
If changes made to the running-config do not have the desired effect and the running-config has not yet been saved, you can restore the device to its previous configuration. Remove the changed commands individually, or reload the device using the reload privileged EXEC mode command to restore the startup-config.
The downside to using the reload command to remove an unsaved running-config is the brief amount of time the device will be offline, causing network downtime.
When a reload is initiated, the IOS will detect that the running-config has changes that were not saved to the startup configuration. A prompt will appear to ask whether to save the changes. To discard the changes, enter n or no.
Alternatively, if undesired changes were saved to the startup-config, it may be necessary to clear all the configurations. This requires erasing the startup-config and restarting the device. The startup-config is removed by using the erase startup-config privileged EXEC mode command. After the command is issued, the switch will prompt you for confirmation. Press Enter to accept.
After removing the startup-config from NVRAM, reload the device to remove the current running-config file from RAM. On reload, a switch will load the default startup-config that originally shipped with the device.
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