Cisco 12000 Series Routers

Field Notice: Cisco 12000 Flash Memory Use With Images Starting IOS 12.0(30)S

August 16, 2004

Products Affected




Route Processor, 128MB and 20MB flash


Route Processor, 128MB and 20MB Flash, ECC support

Problem Description

Until recently, the Cisco 12000 Series Giga-Bit Route Processor (GRP-B) was shipped with a 20MB flash card which was used as non-volatile memory to store Cisco IOS images and configuration files. With the newly added features in the IOS releases, the 20MB card can no longer contain the image starting IOS 12.0(30)S thus a larger flash memory is needed.

Customers who already have GRP-B with 20M cards and wish to run IOS 12.0(30)S or later must upgrade the flash card to a larger one.


Features and Benefits

The large capacity Flash disk card supports larger or multiple configuration files and Cisco IOS® Software images. Cisco IOS Software memory requirements are available on the Software Center (registered customers only) located on

Problem Symptoms

The 20M flash card, cannot store the IOS image 12.0(30)S or later.


Software Requirements

The 64MB card is supported on the 12000 family of routers starting IOS 12.0(17)S/ST.

Ordering Information for recommend replacements

Cisco recomends that customers with GRP-B router processors who plan on loading IOS release 12.0(30)S and later purchase the following memory card:

  • MEM-12KRP-FD64M= Cisco 12000 Series 64MB PCMCIA ATA Flash Disk (Spare)

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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