Cisco Systems 3745 Series Manual De Usuario

If you have increased system compact flash memory or reduced DRAM or SDRAM in a Cisco 3700 
series router, you might need to reload the Cisco IOS image, using the xmodem command in ROM 
monitor mode. To use this command, the computer attached to your console must have a terminal 
emulator that has xmodem capability.

For complete information about ROM monitor commands, refer to Software Configuration Guide for 
Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers, available online at the following 
URL:

If the system image is erased from compact flash memory, the xmodem command establishes a 
connection between a console and the router console or auxiliary port for disaster recovery.

xmodem [filename]—Establishes an xmodem connection between the console and the router. The 
optional argument filename specifies the source file containing the Cisco IOS image.

Other options are:

-c—Use cyclic redundancy check (CRC-16).

-y—Use Ymodem transfer protocol.

-r—Copy the image to DRAM for launch.

-x—Do not launch image on completion of download.

Cisco documentation and additional literature are available on Cisco.com. Cisco also provides several 
ways to obtain technical assistance and other technical resources. These sections explain how to obtain 
technical information from Cisco Systems.

You can access the most current Cisco documentation at this URL:

You can access the Cisco website at this URL:

You can access international Cisco websites at this URL: