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Extra resources for CCNP(R): Cisco Internetwork Troubleshooting Study Guide

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Step 10 Include the boot system flash command if it is not in the configuration. Be sure to use the copy running-config startup-config command after this change. Step 11 Enter the reload privileged EXEC command to restart the router. Incorrect or corrupted image (EXEC functions) Step 1 Obtain the correct system image. If necessary, contact your technical support representative to determine which image is appropriate. Step 2 Use the copy tftp flash privileged EXEC command to retrieve the image. Step 3 Check the configuration register using the show version EXEC command.

Step 2 If there are two stations with the same MAC addresses, change the MAC address of one of the stations and reinitialize the node. Step 1 Insert the router during an off-peak period. Step 2 If insertion is successful during off-peak periods, but unsuccessful during peak load, segment your internetwork to distribute traffic. Step 1 Use the no lnm rps interface configuration command to disable the RPS function on the router that you are trying to insert into the ring. Step 2 Try to insert the router into the ring.

Step 4 Repeat these steps for the second power supply if present. Troubleshooting the Cooling Subsystem Step 1 Check to see if the Fan LED on the supervisor engine module is green. If it is not, check the power subsystem to see if it is operational. Step 2 If the Fan LED is red, the fan assembly might not be seated properly in the backplane. To ensure that the fan assembly is seated properly, loosen the captive installation screws, remove the fan assembly and reinstall it. Tighten all captive installation screws and restart the system.

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