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Configuration Tasks

Release 11.2 GS

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 cards. After you have downloaded the

Cisco IOS image on the Flash card, perform the following tasks beginning in global conﬁguration

mode:

Troubleshooting

The following sections provide some tools to troubleshoot problems on the Cisco 12000 series

routers. For more information, refer to the troubleshooting and diagnostic chapters in the Cisco

12000 series installation and conﬁguration guides.

For a listing of system error messages, refer to the “System Error Messages” feature module.

Also refer to the “Monitoring and Maintaining the Cisco 12000 Series” section, later in this

document, for information on the show commands that might also be useful to troubleshoot

problems.

Using Field Diagnostics

Each line card on the Cisco 12000 series can perform ﬁeld diagnostic testing to isolate faulty

hardware without disrupting normal operation of the system. However, performing ﬁeld diagnostic

testing on a line card does halt all activity on the line card for the duration of the testing. After

successful completion of the ﬁeld diagnostic testing, the Cisco IOS software is automatically

reloaded on the line card.

Note The ﬁeld diagnostic diag command must be executed from the GRP main console port.

Task Command

Step 1 Specify the type of line card, location of

the Cisco IOS image, and the slot of the

line card to download the image. If the slot

number is omitted, the image is

downloaded to all line cards.

microcode {oc12-atm | oc12-pos | oc3-pos-4}

ﬂash ﬁle_id slot-number

Step 2 Reload the image on the speciﬁed line

card.

microcode reload slot-number

Step 3 Exit conﬁguration mode. exit

Step 4 Connect to the line card and verify that the

new Cisco IOS image is on the line card

by checking the version number in the

display output.

execute-on slot slot-number show version

attach slot-number

show version

exit

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