Field Notice: FN - 64273 - Catalyst 6800 Supervisor Engine 6T (Sup6T) Boot Issue - Workaround Provided

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Updated:December 7, 2017
Document ID:FN64273

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Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Revision History

Revision Publish Date Comments
1.0
15-Mar-17
Initial Release
10.0
07-Dec-17
Migration to new field notice system

Products Affected

Affected Product ID Comments
C6800-SUP6T
C6800-SUP6T-XL
C6800-SUP6T-XL=
C6800-SUP6T=

Defect Information

Defect ID Headline
CSCvc86869 Some Sup6T module will not boot up on bring up and fall to rommon prompt on first boot

Problem Description

Select Supervisor Engine 6T (Sup6T) modules might fail to automatically boot up with Cisco IOS in the initial startup and fall back to ROM monitor (ROMMON).

Background

A test script bug in one of the test servers resulted in a configuration error in the manufacturing process. A fixed script was deployed to the production server on December 22, 2016 and units produced after that date are not affected.

Problem Symptom

During the first boot, the affected Sup6T Supervisor modules will not automatically boot up with Cisco IOS and fall back to ROMMON.

Workaround/Solution

When the affected device is at the ROMMON prompt, enter the boot command in order to manually boot.

Once the device boots and is at the Cisco IOS prompt, enter the commands as shown in these steps and save the configuration.

1. Enter into the Global configuration mode.

Router # configure terminal

2. Configure auto boot.

Router(config)# config-register 0x2102

3. Exit from the Global configuration mode.

Router(config)# exit

4. Save the auto-boot setting.

Router# wr

5. Reload the configuration in order to reconfirm.

Router# reload

How To Identify Affected Products

Complete these steps in order to identify the serial number and determine if your product is affected:

1. Visually inspect the product label for the serial number of the unit. The product label is on the top/bottom of the unit.

2. Enter the serial number in the Serial Number Validation tool.

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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