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Cisco 12000 Series Routers

Field Notice: Cisco 12000 Series Line Card Buffer Management ASIC (BMA) Synchronous Dynamic RAM (SDRAM) Errors


September 30, 1999


Note: All references to packet memory in this Field Notice and the accompanying upgrade forms refer to the total amount of packet memory on the line card. For example, a line card that has 32 MB of receive packet memory, 32 MB of transmit packet memory, and 2 MB SIMMS would be referred to as 64 MB of packet memory in this Field Notice.

Products Affected

Product

Description

Revision

POC48E-POS-SR-FC 800-04028-01

ASY,ELMECH,LC,OC48 TTM,GSR

-A0

POC48E-POS-SR-FC 800-04702-01

ASY,ELMECH,LC,OC48 SR-FC

-A0

POC48E-POS-SR-FC 800-04702-01

ASY,ELMECH,LC,OC48 SR-FC

-D0

POC48E-POS-SR-FC 800-04702-01

ASY,ELMECH,LC,OC48 SR-FC

-E0

POC48E-POS-SR-FC 800-04702-01

ASY,ELMECH,LC,OC48 SR-FC

-F0

POC48E-POS-SR-FC 800-04702-02

ASY,ELMECH,LC,OC48 SR-FC

-A0

POC48E-POS-SR-FC 800-04702-02

ASY,ELMECH,LC,OC48 SR-FC

-B0

POC48E-POS-SR-FC 800-04702-02

ASY,ELMECH,LC,OC48 SR-FC

-C0

POC48E-POS-SR-FC 800-04702-02

ASY,ELMECH,LC,OC48 SR-FC

-D0

POC48E-POS-SR-FC 800-04702-02

ASY,ELMECH,LC,OC48 SR-FC

-E0

POC48E-POS-SR-FC 800-04702-02

ASY,ELMECH,LC,OC48 SR-FC

-F0

POC48E-POS-SR-FC 800-04702-02

ASY,ELMECH,LC,OC48 SR-FC

-F1

POC48E-POS-SR-SC 800-04701-01

ASY,ELMECH,LC,OC48 SR-SC

-A0

POC48E-POS-SR-SC 800-04701-01

ASY,ELMECH,LC,OC48 SR-SC

-B0

POC48E-POS-SR-SC 800-04701-01

ASY,ELMECH,LC,OC48 SR-SC

-C0

POC48E-POS-SR-SC 800-04701-01

ASY,ELMECH,LC,OC48 SR-SC

-D0

POC48E-POS-SR-SC 800-04701-02

ASY,ELMECH,LC,OC48 SR-SC

-A0

POC48E-POS-SR-SC 800-04701-02

ASY,ELMECH,LC,OC48 SR-SC

-B0

POC48E-POS-SR-SC 800-04701-02

ASY,ELMECH,LC,OC48 SR-SC

-C0

POC48E-POS-SR-SC 800-04701-02

ASY,ELMECH,LC,OC48 SR-SC

-D0

POC48E-POS-SR-SC 800-04701-02

ASY,ELMECH,LC,OC48 SR-SC

-E0

POC48E-POS-SR-SC 800-04701-02

ASY,ELMECH,LC,OC48 SR-SC

-F0

POC48E-POS-SR-SC 800-04701-02

ASY,ELMECH,LC,OC48 SR-SC

-F1

4OC12/POS-IR-SC 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-A0

4OC12/POS-IR-SC 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-B0

4OC12/POS-IR-SC 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-C0

4OC12/POS-IR-SC 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-D0

4OC12/POS-IR-SC 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-E0

4OC12/POS-IR-SC 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-F0

4OC12/POS-IR-SC 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-F1

4OC12/POS-IR-SC= 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-A0

4OC12/POS-IR-SC= 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-B0

4OC12/POS-IR-SC= 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-C0

4OC12/POS-IR-SC= 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-D0

4OC12/POS-IR-SC= 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-E0

4OC12/POS-IR-SC= 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-F0

4OC12/POS-IR-SC= 800-03876-01

ASY,ELMECH,CARR,QOC12 POS SM

-F1

4OC12/POS-MM-SC 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-A0

4OC12/POS-MM-SC 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-B0

4OC12/POS-MM-SC 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-C0

4OC12/POS-MM-SC 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-D0

4OC12/POS-MM-SC 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-E0

4OC12/POS-MM-SC 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-F0

4OC12/POS-MM-SC 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-F1

4OC12/POS-MM-SC= 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-A0

4OC12/POS-MM-SC= 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-B0

4OC12/POS-MM-SC= 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-C0

4OC12/POS-MM-SC= 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-D0

4OC12/POS-MM-SC= 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-E0

4OC12/POS-MM-SC= 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-F0

4OC12/POS-MM-SC= 800-04103-02

ASY,ELMECH,CARR,QOC12 POS MM

-F1

GE-SX/LH-SC= 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-F0

GE-SX/LH-SC 800-03955-01

ASY,ELMECH,LINE CARD,GIG-E

-A0

GE-SX/LH-SC 800-03955-01

ASY,ELMECH,LINE CARD,GIG-E

-B0

GE-SX/LH-SC 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-A0

GE-SX/LH-SC 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-B0

GE-SX/LH-SC 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-C0

GE-SX/LH-SC 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-D0

GE-SX/LH-SC 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-E0

GE-SX/LH-SC 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-F0

GE-SX/LH-SC= 800-03955-01

ASY,ELMECH,LINE CARD,GIG-E

-A0

GE-SX/LH-SC= 800-03955-01

ASY,ELMECH,LINE CARD,GIG-E

-B0

GE-SX/LH-SC= 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-A0

GE-SX/LH-SC= 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-B0

GE-SX/LH-SC= 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-C0

GE-SX/LH-SC= 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-D0

GE-SX/LH-SC= 800-03955-02

ASY,ELMECH,LINE CARD,GIG-E

-E0

Problem Description

If the affected Cisco 12000 series line card (listed in the Products Affected section) has 64 MB of packet buffer memory, the line card may experience console error messages. Packet corruption and dropped packets may also occur.

Background

A memory timing problem with 64 MB packet buffer memory is causing this problem.

Problem Symptoms

Following is an example of the type of console error message that may be generated:

SLOT 7:%LC-3-BMAERRSS: ToFab BMA SDRAM data error 1B00 in address 0

Workaround/Solution

All cards shipped with 64 MB of packet buffer memory may exhibit this problem. This problem has not been seen on cards with 256 MB of packet buffer memory. If you have an affected card (listed in the Products Affected section) with 64 MB of packet memory, there are two options for correcting this problem:

Option 1 - Upgrade the Memory

If you wish to replace your 64 MB packet buffer memory with 256 MB memory modules, order 256 MB memory modules at no cost by completing this form.

Option 2 - Return Your Cards to Cisco for Upgrading

If you wish to return your cards to Cisco to be upgraded from 64 MB to 256 MB of packet buffer memory at no cost, complete this form.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.

DDTS

Description

CSCdm69744

Gigabit Switch Router (GSR) line card (LC) recovery after SDRAM parity errors fails

CSCdk28622

TTMQOC12: 4M Dimm Recall: ToFab BMA SDRAM data error

How To Identify Hardware Levels

Use the show diag slot command to view specific hardware information for a Cisco 12000 series line card installed in your system.

Following is an example of the show diag slot command for a OC-48c/STM-16c Packet-Over-SONET (POS) line card installed in slot 1:

router# show diag 2  
SLOT 2 (RP/LC 2 ): 1 Port E.D. Packet Over SONET
OC-48c/STM-16 Single Mode  
MAIN: type 38, 65535-16777215-255 rev 74 dev 0  
HW config: 0x00 SW key: FF-FF-FF  
PCA: 65535-16777215-255 rev 71 ver 1  
HW version 1.1 S/N CAB0213001D  
MBUS: MBUS Agent (1) 73-2146-06 rev A0 dev 0  
HW version 1.1 S/N CAB0213001D  
Test hist: 0xFF RMA#: FF-FF-FF RMA hist: 0xFF  
DIAG: Test count: 0xFFFFFFFF Test results: 0xFFFFFFFF  
MBUS Agent Software version 01.35 (RAM) (ROM version is
01.34)  
Using CAN Bus A  
ROM Monitor version 00.0E  
Fabric Downloader version used 00.11 (ROM version is
00.11)  
Board is analyzed  
Board State is Line Card Enabled (IOS RUN )  
Insertion time: 00:00:11 (00:03:32 ago)  
DRAM size: 33554432 bytes  
FrFab SDRAM size: 33554432 bytes  
ToFab SDRAM size: 33554432 bytes

Physical Replacement of Parts

For more information, refer to Installing or Replacing a 12000 Series Line Card.

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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