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microcode reload

Cisco 12000 Series Gigabit Switch Routers 43

microcode reload

To reload the Cisco IOS image on a line card on Cisco 12000 series routers after all microcode

conﬁguration commands have been entered, use the microcode reload global conﬁguration

command.

microcode reload [slot-number]

Syntax Description

Command Mode

Global conﬁguration

Usage Guidelines

This command was modiﬁed in Cisco IOS Release 11.2 GS to add the slot-number option.

In addition to the Cisco IOS image that resides on the GRP card, each line card on Cisco 12000 series

routers has a Cisco IOS image. When the router is reloaded, the speciﬁed Cisco IOS image is loaded

onto the GRP card, and that image is automatically dowloaded to all the line cards.

Normally, you want the same Cisco IOS image on the GRP card and all line cards. However, if you

want to upgrade a line card with a new version of microcode for testing or to ﬁx a defect, you might

need to load a Cisco IOS image that is different from the one on the line card. Additionally, you

might need to load a new image on the line card to work around a problem that is affecting only one

of the line cards.

To load a Cisco IOS image on a line card, ﬁrst use the copy tftp command to download the

Cisco IOS image to a slot on one of the PCMCIA Flash memory cards. After you have downloaded

the Cisco IOS image on the Flash memory card, use the microcode command to download the image

to the line card followed by the microcode reload command to start the image. To verify that the

correct image is running on the line card, use the execute-on slot slot show version command.

For information on how to load Cisco IOS images, refer to the “Loading Images and Conﬁguration

Files” chapter in the Conﬁguration Fundamentals Conﬁguration Guide. For additional information,

refer to the “Observing System Startup and Performing a Basic Conﬁguration” chapter in the

Cisco 12000 series installation and conﬁguration guides.

Example

In the following example, the Cisco IOS software is reloaded on the line card in slot 10:

Router(config)# microcode reload 10

Router(config)# end

Router#

Related Commands

microcode (Cisco IOS image)

microcode query

slot-number (Optional) Slot number of the line card that you want to reload the

Cisco IOS software image on. Slot numbers range from 0 to 11 for the

Cisco 12012 and 0 to 7 for the Cisco 12008. If you do not specify a slot

number, the Cisco IOS software image is reloaded on all line cards.

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