April 30, 2009
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Revision Date Comment 1.0 30-APR-2009 Initial Public Release
Products Affected Comments WS-SVC-NAM1 - WS-SVC-NAM2 - NAM - 4.0
The products affected running NAM 4.0 software can lock up if an old BIOS (pre 4.0-Rel 6.0.9) is present. The BIOS must be upgraded before installing NAM 4.0 software is installed. The BIOS image is bundled with the maintenance image. An additional manual procedure is required to install the BIOS image. The new BIOS will take effect only after the NAM is rebooted following maintenance image installation.
The BIOS sets the timing parameters for the DRAM. The timing settings in older BIOS versions were not precise and can lead to a lock up of the PC CPU when NAM 4.0 is running. The newer BIOS fixes this problem. The older BIOS does not affect NAMs running pre-NAM 4.0 software. NAM 4.0 places a higher load on the system than earlier software versions and thus triggers this problem.
The NAM application locks up and becomes unresponsive shortly after boot-up when running NAM 4.0 software. The IOS image on the supervisor will detect the NAM not responding to "keep alive" messages and will shut down the NAM.
Verify that the BIOS versions is "4.0-Rel 6.0.9" (using the NAM CLI "show version" command), before upgrading the NAM application image to 4.0.
If an older BIOS is present, install the latest NAM maintenance image (currently 2.1(5)), boot up the maintenance image and then upgrade the BIOS. Please refer to the NAM 4.0 release note and the maintenance image readme file for detailed steps.
The latest NAM maintenance image and readme file can be found in the following link:
Cisco register user:
The file names are c6svc-nam-maint.2-1-5.bin.gz and c6svc-nam-maint.2-1-5.readme respectively.
The NAM 4.0 release note can be found in the following link:
To follow the bug ID link below and see detailed bug information, you must be a registered customer and you must be logged in.
DDTS Description BIOS refresh rate and RAS cycle time settings incorrect
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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