Bridge/Router Installation and Configuration Guide

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Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
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Chapter 5 Troubleshooting the Installation
Troubleshooting the Processor Subsystem
• Upper row—Indicates which software component is running. At the end of a
successful boot process, this display reads IOS.
• Lower row—Indicates the current phase of the boot process. At the end of a
successful boot process, this display reads RUN.
Figure 5-6 Line Card Alphanumeric Display
H11344
Upper alphanumeric
LED display (four digits)
Lower alphanumeric
LED display (four digits)