Cisco 7206VXR Installation Guide - Page 131

Chapter 6 Troubleshooting the Installation Troubleshooting the Cooling Subsystem Troubleshooting the Network Processing Engine The procedures in this section assume that the I/O controller, network processing engine, and router itself are in the original factory configuration, and that you have not made changes to your configuration file. If the I/O controller enabled LED does not go on as expected, make sure the power to the router is turned off, reseat the network processing engine in its slot, and restart the router. If the enabled LED remains off, the system detected a processor hardware failure. (This LED should be on in normal operation.) Contact a service representative for instructions. Troubleshooting the Port Adapter and Service Adapters Check the following to help isolate a problem with the port or service adapters: • Are all adapter enabled LEDs on? If yes, the system is operational. • Are any adapter enabled LEDs off? - If the enabled LED on an individual adapter is off, suspect that the adapter has pulled away from the midplane. Reseat the adapter in its slot (you do not have to turn off the system power when removing or replacing port or service adapters). After the system reinitializes the interfaces (if present-service adapters do not have interfaces), the enabled LED on the adapter should go on. - If the enabled LED remains off, the system detected a processor hardware failure. (This LED should be on in normal operation.) Contact a service representative for instructions. Troubleshooting the Cooling Subsystem Check the following to help isolate a problem with the cooling system: • When you start up the system, do the fans start operating? To determine if the fans are operating, listen for them. In noisy environments, place your hand on the left side of the chassis (when viewing the chassis from the front) to feel for air being forced out the vents. - If yes, the power to the fan tray is good. - If no, there is a problem with the fan tray or power. Refer to the "Troubleshooting the Power Subsystem" section in this chapter. • The following message, if displayed, indicates that the system has detected an overtemperature condition or out-of-tolerance power condition inside the chassis. Queued messages: %ENVM-1-SHUTDOWN: Environmental Monitor initiated shutdown If an environmental shutdown results from an out-of-tolerance power condition, the power OK LED will go off, and the system shuts down. (Refer to the "Troubleshooting the Power Subsystem" section on page 6-5.) Although an overtemperature condition is unlikely at initial startup, ensure that heated exhaust air from other equipment is not entering the router's inlet vent, and that there is sufficient clearance around the sides of the chassis to allow cooling air to flow. Refer to the "Preventive Site Configuration: Maintaining Normal Operation" section on page 2-6 in Chapter 2, "Preparing for Installation" for preventive site configurations. OL-5102-02 Cisco 7206 Installation and Configuration Guide 6-7