The tftpdnld command downloads a Cisco IOS software image from a LAN server to Compact Flash using TFTP. The following tftpdnld variables are optional:

TFTP_VERBOSE—Print setting

TFTP_RETRY_COUNT—Number of times that the ROM monitor retries ARP and ACK.

TFTP_TIMEOUT—Overall timeout of the download operation in seconds.

TFTP_CHECKSUM—Performs a checksum test on the image.

FE_SPEED_MODE—Sets the Fast Ethernet speed and duplex mode

After you specify the variables, you must re-enter the tftpdnld command.