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C-5
Cisco 819 Integrated Services Routers Software Configuration Guide
OL-18906-02
Appendix C ROM Monitor
Disaster Recovery with TFTP Download
Optional Variables
These variables can be set with these commands before using the tftpdnld command:
Using the TFTP Download Command
To download a file through TFTP, perform these steps in ROM monitor mode.
Step 1 Use the appropriate commands to enter all the required variables and any optional variables described in
preceding sections.
Step 2 Enter the tftpdnld command as follows:
rommon 1 > tftpdnld -r
Note The -r variable is optional. Entering this variable downloads and boots the new software but does
not save the software to flash memory. You can then use the image that is in flash memory the
next time you enter the reload command.
Variable Command
Configures how the router displays file
download progress.
0—No progress is displayed.
1—Exclamation points (!!!) are displayed to
indicate file download progress. This is the
default setting.
2—Detailed progress is displayed during the
file download process; for example:
• Initializing interface.
• Interface link state up.
• ARPing for 1.4.0.1
• ARP reply for 1.4.0.1 received. MAC
address 00:00:0c:07:ac:01
TFTP_VERBOSE=setting
Number of times the router attempts ARP and
TFTP download. The default is 7.
TFTP_RETRY_COUNT=retry_times
Length of time, in seconds, before the download
process times out. The default is
2400 seconds (40 minutes).
TFTP_TIMEOUT=time
Whether or not the router performs a checksum
test on the downloaded image:
1—Checksum test is performed.
0—No checksum test is performed.
TFTP_CHECKSUM=setting