Troubleshooting wics and cables – Cisco 1721 User Manual
Page 58
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Chapter 3 Troubleshooting
Problem Solving
3-8
Cisco 1721 Router Hardware Installation Guide
78-13834-02
Troubleshooting WICs and Cables
Use the show diag command to help determine problems with a card.
lists problems that could occur with WAN interface cards (WICs) and the possible
causes of these problems.
Table 3-1
OK LED Blinking Patterns
Number of Blinks
Meaning
2
The 860P dual-port random-access memory (DPRAM) has
failed.
3
The parameter RAM area of the 860P DPRAM has failed.
4
The 860P system protection control register has a write
failure.
5
The router cannot detect the dynamic random-access
memory (DRAM).
6
The user programmable machine has a write failure.
9
The router DRAM has failed.
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