Cisco Systems 12406 series, 12006 series manual Soft Reset Switch, 1-22

Chapter 1 Product Overview

Route Processors

Figure 1-7 GRP Alphanumeric LED Displays (Partial Faceplate)

Left alphanumeric	Right alphanumeric
LED display (four digits)	LED display (four digits)

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The alphanumeric LED displays router status messages:

•Router status messages that are displayed during the boot process

•Router status messages that are displayed after the boot process is complete

During the boot process, the alphanumeric LED message displays are controlled directly by the MBus module. After the boot process, they are controlled by the Cisco IOS software (through the MBus) and display messages designated by the Cisco IOS software.

The alphanumeric LED message displays also provide information about different levels of system operation, including the following:

•Status of the GRP

•Router error messages

•User-defined status and error messages

Note A complete, descriptive list of all system and error messages is located in the Cisco IOS System Error Messages publications.

Soft Reset Switch

The soft reset switch (see Figure 1-6) causes a nonmaskable interrupt (NMI) and places the GRP in ROM monitor mode. When the GRP enters ROM monitor mode, its behavior depends on the setting of the GRP software configuration register. (For more information on the software configuration register, see the “Configuring the Software Configuration Register” section on page 4-1.)

	Cisco 12006 and Cisco 12406 Router Installation and Configuration Guide
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