Revised June 21, 2002
Note:?The AS5400HPX platform only supports Cisco IOS Software Release 12.2(2)XB images and later.
Customers have attempted to load unsupported mainline Cisco IOS software releases 12.2(10) and 12.2(10a) on AS5400HPX platforms. The AS5400HPX system will not boot when attempting to load these images. Loading these images on the AS5400HPX system will cause a catastrophic system failure. The system cannot recover from this failure.
There is mechanism in ROMMON on the AS5400HPX to prevent any Pre-XB images from loading on the AS5400HPX platform. This mechanism was disabled because of a change in the Cisco IOS compiler. This allows Cisco IOS Software Release 12.2 mainline images to load on HPX systems. During the upgrade, the FPGA is down-graded. The FPGA code becomes incompatible with the hardware and the system cannot boot.
The AS5400HPX system will not boot.
If the Cisco IOS software image has not been downloaded, determine which platform the customer is attempting to upgrade. To determine if the system is an AS5400 or AS5400HPX, issue the show version command and check the output.
Output from "show version" on the AS5400HPX platform:
Processor board ID JAE061300NW R7000 CPU at 390Mhz, Implementation 39, Rev 3.3, 256KB L2, 8192KB L3 Cache
Output from "show version" on the AS5400 platform:
Processor board ID JAB035103P2 R7000 CPU at 250Mhz, Implementation 39, Rev 1.0, 256KB L2, 2048KB L3 Cache
If the system is loaded with Cisco IOS Software Release 12.2(10) or Release 12.2(10a), the following errors will be displayed as the FPGA is downgraded during boot.
Carrier card 1 Firmware revision: 2.2 Carrier card 1 Firmware will be set to 1.0 Carrier card 1 Firmware now at 1.0 Carrier card 2 Firmware revision: 2.2 Carrier card 2 Firmware will be set to 1.0 Carrier card 2 Firmware now at 1.0 Carrier card 3 Firmware revision: 2.2 Carrier card 3 Firmware will be set to 1.0 Carrier card 3 Firmware now at 1.0 Motherboard Firmware revision: 2.2 Motherboard Firmware will be set to 1.0 This should take less than 5 minutes If more than 5 minutes has elapsed, please cycle power Motherboard Firmware now at 1.0 Access Server will now reboot System Bootstrap, Version 12.2(2r)XB, RELEASE SOFTWARE (fc1) TAC Support: http://www.cisco.com/tac Copyright (c) 2001 by cisco Systems, Inc. bus error while trying to access flash - addr = 0xb0000000 cannot read flash info ****************************************** Unsupported system flash simms detected Replace flash simms Both flash simms must be of the same type ******************************************
The following errors will occur if booting from rommon:
rommon 3 > boot bus error while trying to access flash - addr = 0xb8000000 cannot read flash info getdevnum warning: device "boot flash" has size of zero bus error while trying to access flash - addr = 0xb8000000 cannot read flash info getdevnum warning: device "boot flash" has size of zero open: read error...requested 0x4 bytes, got 0x0 trouble reading device magic number boot: cannot open "bootflash:" boot: cannot determine first file name on device "bootflash:" rommon 4 >
There is no workaround for this issue. This is a catastrophic failure. The system will not boot any release of Cisco IOS after the failed upgrade, either from a normal reload or from ROMMON mode. The chassis is totally unrecoverable after the FPGA downgrade. The customer will have to replace the motherboard and chassis using the return materials authorization (RMA) process.
The DFC cards are not affected and do not have to be replaced.
To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.
Port FPGA code compatible to AS5400HPX
Cisco IOS may cause reboot loop on AS5400
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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