ccna unterlagen pdf

ccna unterlagen pdf.bytes refers to the current NVRAM capacity occupied by the saved configuration file.Video 10.13 A multimedia demonstration of configuring and manipulating a configuration file on an IOS device is included in the companion digital resource to this book.It is important for you to know that IOS devices do not automatically save changes made to the configuration. You must manually execute the command copy running-configstartup-config in privileged EXEC mode, which backs up the configuration to NVRAM& Also, to view or manipulate the configuration, you must enter privileged EXEC mode. If you configure a new router but reboot without saving the configuration, the configuration made will be lost. The command show running-config displays the current running configuration in the IOS device memory.3. Restoring the Configuration File LocallyTo restore the configuration from NVRAM to RAM, use the command copy startup-config in privileged EXEC moderunning-config, as shown under the female port.IOS# copy startup-config running-configDestination filename [running-config]?947 bytes copied in 0.320 secs (2959 bytes/sec)A key point to note is that wherever you copy a configuration file to RAM, IOS will take a merge action: load the configuration file from the specified location, overwrite the same commands in memory and add commands that are not in memory, but do not delete commands that are in memory but not in NVRAM. This process is covered in more depth in Chapter 16.10.6.3 Device Version Information