Cisco 7100 Series VPN Routers

Field Notice: New Boot ROM For Cisco 71xx Platforms Improves Flash Disk Boot Up Reliability

March 10, 2000

Products Affected














Problem Description

The system will not recognize files on the Flash Disk at ROM monitor (ROMMON) level, and as a result may experience an intermittent boot up anomaly.

When this problem occurs, it's usually when the flash card is accessed between 10 and 20 times at the ROMMON level.

Note:? Systems ordered after November 14, 1999 are not affected.


The intermittent nature of this problem contributed to the delay in Cisco recognizing that there was an issue with Flash Disk boot up reliability. After the problem was identified, there was swift action to provide a solution. Please see the Workaround/Solution section in this field notice for more details.

Problem Symptoms

Without the new Boot ROM, the monlib on the Flash Disk card is not reliably recognized at the ROMMON level. As a result, an affected system will not boot.

This occurs only at the ROMMON level. After the system is running the IOS® Software, the Flash Disk is accessible.


Perform a show version command at the router command line interface and note the Boot ROM version output (for reference, the relevant text is highlighted in green).

Example output:

router>show ver
Cisco Internetwork Operating System Software
IOS (tm) EGR Software (c7100-IS-M), Version 12.0(4)XE
Copyright (c) 1986-1999 by cisco Systems, Inc.
Compiled Thu 10-Jun-99 15:32 by lindaImage text-base: 0x60008900, data-base: 0x60D8E000
ROM: System Bootstrap, Version 12.0(5r)XE, RELEASE SOFTWARE (fc1)
BOOTFLASH: EGR Software (C7100-BOOT-M), Version 12.0(5)XE5

Order the new ROMMON Upgrade Kit if you do not have ROM Version 12.0(5r)XE or higher*

Note:?* When you order the BOOT-7100= Upgrade Kit, you do not need to specify the version. The ROM ships programmed with the latest code available.

Part #: BOOT-7100=

Follow the PLCC ROMMON removal and replacement instructions included with the BOOT-7100= Upgrade Kit.

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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