Cisco 7600 Series Routers

Field Notice: Difficultly Passing Traffic Through Port 1 and 2 on OSM-2+4GE-WAN+ Spares After Shipment

February 06, 2004

Products Affected


Top Assembly

Printed Circuit Assembly

Part Number

Part Number










Serial Numbers

Sequential #

From SAD064500VG To SAD064500WA

From SAD07020274 To SAD07020275

From SAD070300M8 To SAD070300MC

From SAD070401C6 To SAD070401CN

From SAD070602NV To SAD070602PU

From SAD070701W4 To SAD070701YF

From SAD070901V4 To SAD070901WX

From SAD07100002 To SAD071002LA

From SAD071100YT To SAD07110113

From SAD071200UY To SAD07120218

From SAD07140001 To SAD0714000A

From SAD0716026W To SAD0716026L

From SAD071703AS To SAD07190074

Problem Description

If an OSM-2+4GE-WAN+ receives enough mechanical shock during transport or during the install process, there is a risk of failure and network stoppage after initial installation.


We experienced a larger than normal Dead On Arrival (DOA) Rate on OSM-2+4GE-WAN+ boards during the first 3 months of shipments. All boards were verified to be functional upon shipment. The failures occur upon bring up at the customer site, and have only been seen with spare shipments. Once the board is up and running, we have not observed any failures. The failure mode seen in spare shipment includes traffic not passing through Port 1 and 2, sometimes even Port 3. This failure is due to damage to two components along the top edge of the board.

Problem Symptoms

Upon initial installation, the OSM-2+4GE-WAN+ is not configurable or is unable to pass traffic through Port 1 or Port 2. Ports 3 and 4 are also at risk of the same failure, but to a lesser degree due to the fact that they not as susceptible to mechanical shock.


Immediate Solution:

If it has been determined that an OSM-2+4GE-WAN+ is experiencing a failure such as the one outlined in the Problem Symptom section above, and the product falls within the serial number range listed in the How To Identify Hardware Levels section below, a DOA Return Material Authorization (RMA) must be placed in order for the part to be replaced.

How To Identify Hardware Levels

The affected versions of this card can be identified by the Serial Numbers and by the Cisco Top Assembly Number (TAN). Those Part numbers that end with a -03 and -04 are impacted by this Field Notice.

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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