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Setting the LED Message on the Line Cards

Cisco 12000 Series Gigabit Switch Routers 19

Setting the LED Message on the Line Cards

You can specify the message that is displayed on the LED on the front panel of one or more line

cards. You can also remove the user-speciﬁed message that is displayed on the LED on the front

panel of one or more line cards and revert to the normal status message for the line card.

To set or clear the LED message, perform one of the following tasks in privileged EXEC mode:

Understanding Software Components

There are many software components bundled with the Cisco IOS image for the Cisco 12000 series.

In most cases you do not need to know about these components; however, during troubleshooting,

you might be asked for the speciﬁc version number of the various components. Table 1 describes

these software components, including those that are bundled with the Cisco IOS image for the

Cisco 12000 series and lists the command you would use to determine the version of the component.

Note The syntax for the show controller command listed in Table 1 is complex. For details on the

command syntax, refer to the “Command Reference” section.

Display stack usage of processes and interrupt

routines, including the reason for the last system

reboot. This command is only useful to your technical

support representative.

show stacks

Display the status of TCP connections. show tcp

Display a concise description of TCP connection

endpoints.

show tcp brief [all]

Display general information about the router when

reporting a problem.

show tech-support [page] [password]

Display conﬁguration of the system hardware, the

software version, the names and sources of

conﬁguration ﬁles, and the boot image.

show version

Task Command

Set the message displayed on the LED on the front

panel of one or more line cards.

set card-message {all | slot number} [expire

seconds] [blink seconds] message

Clear the user-speciﬁed message that is displayed

on the LED on the front panel of one or more line

cards and revert to the normal status message for

the line card.

clear card-message {all | slot number}

Task Command

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Cisco 12012 Technical Information Page 7