Field Notice: FN74154 - Some A900-PWR1200-A Power Supply Units on Cisco Network Convergence System 560 Series Routers May Become Unresponsive After FPD Upgrade with Specific Cisco IOS XR Releases - Software Upgrade Recommended

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Updated:August 6, 2024
Document ID:FN74154

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Medium
Impact Rating:
Medium
First Published:
2024-Aug-06
Last Published:
2024-Aug-06
Revision:
1.0
Cisco Bug IDs:

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.

Products Affected


Affected Product Name Description Comments
A900-PWR1200-A ASR 900 1200W AC Power Supply  
A900-PWR1200-A= ASR 900 1200W AC Power Supply  
N560-4 N560 4RU Chassis HW with RSP4  
N560-4-E NCS 560 4RU Chassis HW with RSP4-E, PSU options and FAN  
N560-4-E-CC NCS 560 4RU CC Chassis HW with RSP4-E, PSU options and FAN  
N560-4-SYS N560 4RU HW. Flex. Consumption for RSP4. Smart Licensing  
N560-4-SYS-BUN1 N560 4RU HW. Flex. Consumption for RSP4. Smart Licensing  
N560-4-SYS-E N560 4RU HW. Flex. Consumption for RSP4-E. Smart Licensing  
N560-4-SYS-E-BUN1 N560 4RU HW. Flex. Consumption for RSP4-E. Smart Licensing  
N560-4-SYS-E-V N560 4RU HW. for RSP4-E. ATO for Volume based discounting  
N560-4-SYS-V N560 4RU HW. for RSP4. ATO for Volume based discounting  
N560-7 N560 7RU Chassis HW with RSP4  
N560-7-E NCS 560 7RU Chassis HW with RSP4-E, PSU options and FAN  
N560-7-SYS N560 7RU HW. Flex. Consumption for RSP4. Smart Licensing  
N560-7-SYS-E N560 7RU HW. Flex. Consumption for RSP4-E. Smart Licensing  
N560-7-SYS-E-V N560 7RU HW. for RSP4-E. ATO for Volume based discounting  
N560-7-SYS-V N560 7RU HW. for RSP4. ATO for Volume based discounting  
NCS560-4 NCS 560 Series Router Chassis 4RU  
NCS560-4-CC= NCS 560 Series Router Chassis 4RU Conformal Coated  
NCS560-4= NCS 560 Series Router Chassis 4RU  




Defect Information


Defect IDHeadline
CSCwk02203NCS560: To disable FPD upgrade for (A900-PWR1200-A) PSU

Problem Description


Some A900-PWR1200-A power supply units on Cisco Network Convergence System (NCS) 560 Series Routers may become unresponsive after a Field Programmable Device (FPD) upgrade to Cisco IOS XR Software releases 7.7.21, 7.8.2, 7.10.1, or 24.1.1.


Background


The root cause of this issue is a power supply FPD upgrade enablement to Cisco IOS XR releases 7.7.21, 7.8.2, 7.10.1, or 24.1.1.


Problem Symptom


After upgrading Cisco NCS 560 Routers to Cisco IOS XR Software Release 7.7.21, 7.8.2, 7.10.1, or 24.1.1, or after online insertion and removal (OIR), output for the # show hw-module fpd command for the power supply may show the FPD status NEED UPGD, as shown in the following example:

# show hw-module fpd
Location   Card type             HWver FPD device       ATR Status    Running   Programd  
0/PM1      A900-PWR1200-A        0.1   DCA-PriMCU       NEED UPGD     0.00        0.00  

If the command output shows 0.00 for Running and Programd, the device is affected by this vulnerability.

If the FPD upgrade is executed further from this stage, the power module will fail and show a FAILED status for the # show platform command, as shown in the following example:

# show platform
Node              Type                       State             Config state
0/PM1/CPU0        A900-PWR1200-A             FAILED            NSHUT

Workaround/Solution


Do not attempt FPD upgrade for power supply units with the A900-PWR1200-A product ID (PID).

Cisco recommends disregarding the NEED UPGD output for the #show hw-module fpd command on the affected Cisco IOS XR releases that are mentioned in this field notice.

The routers can be upgraded to Cisco IOS XR Release 24.2.1 or later, which have incorporated the fix for this issue.

For A900-PWR1200-A power supply modules that have already failed, a Return Material Authorization (RMA) can be initiated.


Revision History


VersionDescriptionSectionDate
1.0Initial Release—2024-AUG-06

For More Information

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