Cisco 3600 Series Upgrade Instructions - Page 27

Browse online or download pdf Upgrade Instructions for Gateway Cisco 3600 Series. Cisco 3600 Series 30 pages. Memory upgrade
Also for Cisco 3600 Series: Product Overview (10 pages), Owner's Manual (17 pages), Application Note (41 pages), Configuration Manual (36 pages), User Manual (25 pages), Appendix (15 pages), User Manual (7 pages), Manual (5 pages), Configuration Note (23 pages), Configuration Note (18 pages), Configuration Note (25 pages)

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Recovering Compact Flash Memory and System Images

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:

http://www.cisco.com/univercd/cc/td/doc/product/access/acs_mod/index.htm

Using the xmodem Command

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.

Cisco.com

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

http://www.cisco.com/univercd/home/home.htm

You can access the Cisco website at this URL:

http://www.cisco.com

You can access international Cisco websites at this URL:

http://www.cisco.com/public/countries_languages.shtml

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Recovering Compact Flash Memory and System Images

Upgrading System Memory in Cisco 3700 Series Routers