Example 6-11 shows how to
transfer, back up, and restore con?¬?guration ?¬?les.
The copy running-con?¬?g tftp command allows the current con?¬?guration to be uploaded
and saved to a TFTP server. The IP address or name of the TFTP server and the destination
?¬?lename must be supplied. On the display, a series of exclamation marks show the progress
of the upload.
The copy tftp running-con?¬?g command downloads a con?¬?guration ?¬?le from the
TFTP server to the running con?¬?guration of RAM. Again, the address or name of the
TFTP server and the source and destination ?¬?lename must be supplied. In this case, because
you are copying the ?¬?le to the running con?¬?guration, the destination ?¬?lename should be
running-con?¬?g. This is a merge process, not an overwrite process.
NOTE When a con?¬?guration is copied into RAM from any source, the con?¬?guration
merges with, or overlays, any existing con?¬?guration in RAM, rather than overwriting it.
New con?¬?guration parameters are added, and changes to existing parameters overwrite
the old parameters. Con?¬?guration commands that exist in RAM for which there is no
corresponding command in NVRAM remain unaffected. Copying the running
con?¬?guration from RAM into the startup-con?¬?g ?¬?le in NVRAM will overwrite the
startup-con?¬?g ?¬?le in NVRAM.
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