Cisco 10720 Configuration Guide - Page 148

Removing and Installing the Route Processor Memory Chapter 5 Maintaining the Cisco 10720 Internet Router Step 8 Step 9 Step 10 Reinstall the chassis cover. (See the "Removing and Installing the Router Chassis Cover" section on page 5-13.) Reconnect all interface cables to the uplink card and access card. Power up the router. (See the "Connecting Power to the Router" section on page 5-7.) Verifying Fan Assembly Functionality Use the show environment command to display router environment information. Overtemperature conditions can signal problems with the fan assembly. (See the "Using the show environment all Command" section on page 3-45.) Troubleshooting the Fan Assembly Verify the following when troubleshooting the fan assembly installation: • Check for proper seating of the fan connection on the main board. • Ensure that all power connections are securely connected. • Ensure that adequate ventilation is available. Removing and Installing the Route Processor Memory To upgrade and verify the Route Processor (RP) memory in the Cisco 10720 Internet Router, the following procedures must be completed in the specified order. Caution To prevent upgrade failure, complete the upgrade using the following procedure sequence. Ensure that each procedure is complete before starting the next procedure. 1. Check that the Cisco 10720 Internet Router has Cisco IOS Release 12.0(27)S or later installed and running. See the "Upgrading and Verifying the Cisco IOS Release" section on page 5-27 for procedures. 2. Upgrade the ROM monitor (ROMmon) image on the Cisco 10720 Internet Router, then verify the version. See the "Upgrading and Verifying the ROMmon Image" section on page 5-27 for procedures. Refer to the Cisco IOS Release 12.0 Configuration Fundamentals Configuration Guide for information on ROMmon. 3. Replace the 256-MB RP memory with 512-MB RP memory. 5-26 Cisco 10720 Internet Router Installation and Configuration Guide 78-13062-10