Field Notice: FN - 63724 - ONS - Wrong EEPROM Content on ONS-SE-Z1 Units Cause MEA Alarm and Traffic Impacting in Multirate Mode - Replace on Failure

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Updated:February 7, 2019

Document ID:FN63724

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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	12-Feb-14	Initial Release
10.0	25-Oct-17
10.1	07-Feb-19	Fixed Broken Image Link

Products Affected

Affected Product ID	Comments
15454-MRC-2.5G4=	10-1971-02 or 10-1971-04 are good Optics
15454-MRC-4=	10-1971-02 or 10-1971-04 are good Optics
15454-MRC-I-12=	10-1971-02 or 10-1971-04 are good Optics
15454-MRC-I-4=	10-1971-02 or 10-1971-04 are good Optics
15600-ASAP-CC=	10-1971-02 or 10-1971-04 are good Optics
ONS-SE-Z1	10-1971-02 or 10-1971-04 are good Optics

Defect Information

Defect ID	Headline
CSCvf34445	There were no defects filed with this field notice at the time of publication.

Problem Description

Incorrect programming on ONS-SE-Z1 causes the Mismatched Equipment Attributes (MEA) alarm and traffic impacts when ONS-SE-Z1 units are configured for multirate mode in 15600, 15454-MRC-2.5G4=, 15454-MRC-4=, 15454-MRC-I-12=, 15454-MRC-I-4= line cards.

Background

ONS-SE-Z1, which shipped from June 6th 2013 to Dec 31st 2013, has an incorrect Electrically Erasable Programmable Read-Only Memory (EEPROM) value that does not allow the multirate mode to configure.

All Optics (10-1971-04) shipped after Jan 1st 2014 are good.

Problem Symptom

If ONS-SE-Z1 (Part number 10-1971-03) is used with the listed cards in multirate mode, it triggers an MEA alarm, and traffic does not flow. However, the problem is not encountered in single rate mode.

Workaround/Solution

ONS-SE-Z1 works fine in single rate mode. However, if the user changes to multirate mode with the listed cards, a traffic impact is observed. Customers must verify the impacted units with the procedure provided in the How to Identify Affected Products section.

If an ONS-SE-Z1 fails due to the issue described in this field notice, Cisco requests that customers follow the Cisco Return Material Authorization (RMA) process in order to request replacement of the failed units.

How To Identify Affected Products

ONS-SE-Z1 Optics can be identified in two ways:

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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