Cisco Cisco IOS Software Release 12.4(2)XB6

 lists the release history for this feature.

Not all commands may be available in your Cisco IOS software release. For release information about a 
specific command, see the command reference documentation.

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Cisco Feature Navigator enables you to determine which Cisco IOS and Catalyst OS software images 
support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to 

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 lists only the Cisco IOS software release that introduced support for a given feature in a given 

Cisco IOS software release train. Unless noted otherwise, subsequent releases of that Cisco IOS 
software release train also support that feature.

Field-Programmable Device Upgrades

12.2(31)SB
2
12.4(11)T
12.4(4)XD

Field-programmable devices (FPDs) are hardware devices 
implemented on router cards that support separate software 
upgrades. A field-programmable gate array (FPGA) is a 
type of programmable memory device that exists on some 
cards in Cisco routers. The term “FPD” in general describes 
any type of programmable hardware device, including 
FPGAs.

In Cisco IOS Release 12.4(4)XD, this feature was 
introduced on the Cisco 7200 VXR router.

In Cisco IOS Release 12.4(4)XD2, the output of the 
upgrade hw-module slot fpd command for the manual 
FPD upgrade example was revised.

In Cisco IOS Release 12.4(4)XD3, support for the VPN 
Services Adapter was added (this service adapter is not 
supported in Cisco IOS Release 12.2(31)SB2).

In Cisco IOS Release 12.4(15)T, support for automatic FPD 
upgrade was added for the NPE-G2.