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Cisco Catalyst 6500 Series Switches

Field Notice: A Serial EEPROM Value May Be Configured Incorrectly On Some WS-X6748-GE-TX Linecards


Revised August 10, 2004

August 03, 2004


Products Affected

Product

Top Assembly

Printed Circuit Assembly

Part #

Rev.

Part #

Rev.

WS-X6748-GE-TX

68-2061-03

A0

73-9098-02

N/A

Problem Description

Some WS-X6748-GE-TX linecards may incorrectly display a power consumption value of -5.86A rather than a correct value of -7.00A.

Background

A series of WS-X6748-GE-TX linecards were inadvertently released to the field with a Serial EEPROM which was programmed with an incorrect power consumption value. Engineering Change Order (ECO) E076782 was implemented to correct this problem in future WS-X6748-GE-TX builds, and an EEPROM update software image has been released to update affected linecards in the field.

Problem Symptoms

Affected WS-X6748-GE-TX linecard will display an incorrect power consumption value when either the show idprom module [slot] (IOS) or show sprom (CatOS) commands are executed. Below are output examples of both the IOS and CatOS commands.

Cisco IOS Software:
  Router# show idprom module 4
  IDPROM for module #4
    (FRU is 'CEF720 48 port 10/100/1000mb Ethernet')
    OEM String = 'Cisco Systems'
    Product Number = 'WS-X6748-GE-TX'
    Serial Number = 'SAD01234567'
    Manufacturing Assembly Number = '73-9098-02'
    Manufacturing Assembly Revision = '03'
    Hardware Revision = 0.903
    Current supplied (+) or consumed (-) = -5.86A   !--- Should read -7.00A
    
  !--- Important output in italics
 
Cisco CatOS Software:
  Console> (enable) show sprom 3
  Common block:
   Block Signature : 0xabab
   Block Version   : 3
   Block Length    : 160
   Block Checksum  : 0x150b
   EEPROM Size     : 512
   Block Count     : 2
   FRU Major Type  : 0x6003
   FRU Minor Type  : 0x3ef 
   OEM String      : Cisco Systems
   Product Number  : WS-X6748-GE-TX
   Serial Number   : SAD01234567
   Part Number     : 73-9098-02
   Part Revision   : 02   
   Mfg Deviation   :  
   H/W Version     : 0.902
   Mfg Bits        : 0
   Engineer Use    : 0
   snmpOID         : 9.5.1.3.1.1.2.1007
   Power Consump   : -586     !--- Should read -700
   RMA Code        : 0-0-0-0  
   CLEI            :

   [Remaining Output Removed...]
   
  !--- Important output in italics

Workaround/Solution

In order to ensure that all WS-X6748-GE-TX linecards in the field are properly updated with the correct power consumption value, Cisco has developed a software image to update these values without the need for an RMA or product replacement. This EEPROM update image can be executed on the Supervisor720 of any Catalyst 6500 Switch containing one or more WS-X6748-GE-TX linecards. The EEPROM update software image is designed for one time use, and will not replace your current IOS or CatOS image. After executing the EEPROM update, the original software image must be restored on the Supervisor720.

The upgrade procedure includes downloading an EEPROM update image, copying that image to system flash, booting the system to ROMMON, executing the EEPROM update image, and then restoring the system's previous IOS or CatOS image. Once this process has been successfully completed, the linecard should report the correct power consumption value.

Note:  This procedure is service impacting, and as such, will require a scheduled downtime in which the Catalyst switch can be taken offline and booted into ROMMON mode.

Step 1: Download the WS-X6748-GE-TX EEPROM update image via the link below: sprom-sup720-6748getx-swupdate-1.hZ

Note:  This image must only be run from the active Supervisor while it is in ROMMON. If a standby Supervisor is present, it will need to be physically removed from the system for the duration of the upgrade procedure.

Note:  Step 2: Establish a direct console connection to the active Supervisor module using a standard Cisco console cable (rolled RJ45). Telnet and SSH connections CANNOT be used during this procedure, as these features will be disabled once the system is booted into ROMMON during Step 6.

Step 3: Copy the EEPROM Update image onto the system flash or a removable flash device installed in the system. This process is the same as that used to copy any image onto a Cisco flash device. For more information on this procedure, please refer to either the Cisco IOS Software document entitled Loading and Maintaining System Images or the Cisco CatOS document entitled Upgrading Software Images on Catalyst 6000/6500 Series Switches.

Step 4a: Record the name and location of the current software image running on the system. This can be accomplished by issuing one of the following commands and witting down the output indicated in italics.

Cisco CatOS:
     Console> (enable) show version | include System Boot Image File
     System Boot Image File is '[device]:[System-image-name]'

     !--- Important output in italics

Cisco IOS:
     Router# show version | include System image
     System image file is '[device]:[System-image-name]'

     !--- Important output in italics 

Step 4b: Record the current configuration register value by issuing one of the following commands, and witting down the output indicated in italics.

Cisco CatOS:
     Console> (enable) show version | include Configuration register
     System Configuration register is 0x2
     
    !--- Important output in italics

Cisco IOS:
     Router# show version | include Configuration register
     Configuration register is 0x2102

     !--- Important output in italics 

Step 4c: Record the current amount of power available in the system by issuing one of the following commands, and writing down the output indicated in italics.

Cisco CatOS:
     Console>(enable) show environment power | include Remaining
     Remaining Power in the System: 476.70 Watts (11.35 Amps @42V)

    !--- Important output in italics
            
Cisco IOS:
     Router# show power available
     system power available =  265.86 Watts ( 6.33 Amps @ 42V)

     !--- Important output in italics 

Step 5: Set the configuration register so that upon reload, the system will boot into ROMMON.

Cisco CatOS:
     Console> (enable) set boot config-register 0x0

Cisco IOS:
     Router# configure terminal
     Router#(config) config-register 0x0   
     Router#(config) exit 

Step 6: At this point in the process the original system image should be saved to a valid flash device, and the system image name/location, configuration register, and available power values should be recorded or logged in a safe place. Once each of these tasks is complete, it is safe to reload the system so that it can boot into ROMMON mode.

Cisco CatOS:
     Console> (enable) reset

Cisco IOS:
     Router# reload 

Note:  If at any point during the reload process you are prompted to save your configuration file, do so, or you will lose any configuration changes made since the last save.

Step 7: Once the system has been reloaded, if you do not see a ROMMON prompt, press the 'Enter' key a couple of times. Once the ROMMON prompt appears you will need to execute the EEPROM update image in order to update the power consumption value of the WS-X6748-GE-TX. Issue the following command to begin the EEPROM update:

Syntax:
     rommon 1 > boot [device]:sprom-sup720-6748getx-swupdate-1.hZ 

Step 8: Once the update image has been executed you will be presented with the following system prompt:

Enter power available in the system: _

At the prompt you should enter the numerical value you recorded in Step 4c. This value represents the amount of available power in the system (in watts). If, after entering the power value, you are presented with an error message, please follow the instructions in that error message before continuing to Step 9. If the update executes successfully and without any errors, simply continue on to Step 9.

Step9: The previously running system image must now be reloaded, using the image identified in Step 4a.

Syntax:
     rommon 1 > boot [device]:[system-image-name from Step 4a] 

Step 10: Once the system is back online change the config-register back to its original value, as noted in Step 4b.

Cisco CatOS:
     Console> (enable) set boot config-register [value from Step 4b]

Cisco IOS:
     Router# config terminal
     Router#(config) config-register [value from Step 4b]
     Router#(config) exit 

Step 11: Power up the standby Supervisor, if present.

Example:

Below is sample output from the successful execution of the EEPROM update image. Please note, in this example WS-X6748-GE-TX linecards are installed in slots 1 and 9:

rommon 1 > boot disk0:sprom-sup720-6748getx-swupdate-1.hZ
   string is disk0:sprom-sup720-6748getx-swupdate-1.hZ

   Uncompressing file: 

   SR71K Interface (600 MHz)


   System Power On Diagnostics
   DRAM Size ....................512 MB
   NVRAM Size ...................2048KB
   Level2 Cache .................Present ( 512 KB)
   Level3 Cache .................Present (2048 KB)

   Boot image: disk0:sprom-sup720-6748getx-swupdate-1.hZ
   eobc_init_if: unit = 1  okay
   Enter power available in the system: 2325.54

   Updating module 1 SPROM 1 ....
   Module 1 SPROM 1 has been updated.

   Updating module 9 SPROM 1 ....
   Module 9 SPROM 1 has been updated.
   
   **************************************
   SPROMs in 2 modules have been updated.
   **************************************
   System Bootstrap, Version 7.7(1)
   Copyright (c) 1994-2003 by cisco Systems, Inc.
   Cat6k-Sup720/SP processor with 524288 Kbytes of main memory

   rommon 1 >

New Product Shipment Status

As of approximately January 1, 2004, WS-X6748-GE-TX linecards manufactured under Engineering Change Order (ECO) E076782 are guaranteed to be free of this defect.

RMA Product Shipment Status Product shipped from Service Logistics RMA Depots may still exhibit this problem. To ensure that a replacement part is NOT affected by this problem, please request that any RMA placed for a WS-X6748-GE-TX is processed as "Manufacturing New". Please note that replacements fulfilled through this process typically take 3 business days or more to arrive on-site, therefore service level agreements will not apply.

How To Identify Hardware Levels

In order to determine whether or not a given WS-X6748-GE-TX linecard is affected, one of the following commands must be executed on the system, and its output must be analyzed.

IOS: show idprom module [slot#] 
CatOS: show sprom [slot#] 

Affected linecards will have a Product Number of WS-X6748-GE-TX, a Part Number or Manufacturing Assembly Number of 73-9098-02, and a Power Consumption value of either -5.86A or -586. Below are output examples of both the IOS and CatOS commands.

Cisco IOS Software:
  Router# show idprom module 4
  IDPROM for module #4
    (FRU is 'CEF720 48 port 10/100/1000mb Ethernet')
    OEM String = 'Cisco Systems'
    Product Number = 'WS-X6748-GE-TX'
    Serial Number = 'SAD01234567'
    Manufacturing Assembly Number = '73-9098-02'
    Manufacturing Assembly Revision = '03'
    Hardware Revision = 0.903
    Current supplied (+) or consumed (-) = -5.86A
    
  !--- Important output in italics
 
Cisco CatOS Software:
  Console> (enable) show sprom 3
  Common block:
   Block Signature : 0xabab
   Block Version   : 3
   Block Length    : 160
   Block Checksum  : 0x150b
   EEPROM Size     : 512
   Block Count     : 2
   FRU Major Type  : 0x6003
   FRU Minor Type  : 0x3ef 
   OEM String      : Cisco Systems
   Product Number  : WS-X6748-GE-TX
   Serial Number   : SAD01234567
   Part Number     : 73-9098-02
   Part Revision   : 02   
   Mfg Deviation   :  
   H/W Version     : 0.902
   Mfg Bits        : 0
   Engineer Use    : 0
   snmpOID         : 9.5.1.3.1.1.2.1007
   Power Consump   : -586
   RMA Code        : 0-0-0-0  
   CLEI            :

   [Remaining Output Removed...]
   
   !--- Important output in italics 

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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