Cisco 7206VXR Hardware Guide - Page 18

Installation Requirements Based on the NPE or NSE Installed Chapter 1 Cisco 7200 Series Port Adapter Installation Requirements Step 5 Step 6 Make sure that the bandwidth points are evenly distributed between the left (odd-numbered slots) and right (even-numbered slots) buses. Include the I/O controller in your determination of balance for the left odd-numbered slots. Fill the slots in the following order: 2, 1, 4, 3, 6, 5. Check your Cisco IOS release and port adapter SDRAM memory requirements as detailed in Chapter 2. You are finished calculating your port adapter configuration. Note Dual-width port adapters occupy two horizontally aligned port adapter slots when installed in a Cisco 7200 series router; however, dual-width port adapters do not use both PCI bus mb1 (left bus) and PCI bus mb2 (right bus) when operating in the router. The dual-width PA-A2 port adapter uses only PCI bus mb2 (right bus) when installed in a Cisco 7200 series router. The dual-width PA-12E/2FE port adapter autoselects PCI bus mb1 (left bus) or PCI bus mb2 (right bus) based on bandwidth availability-the port adapter selects the PCI bus that has the most available bandwidth. Therefore, do not include the bandwidth points for the PA-12E/2FE when calculating the combined bandwidth point total for a combination of installed port adapters in PCI bus mb1 (left bus) and PCI bus mb2 (right bus). Instead, add the bandwidth points for the PA-12E/2FE to the PCI bus that has the most PCI bus bandwidth availability (the PCI bus the PA-12E/2FE will autoselect) after completing the initial calculation. Sample Bandwidth Configuration for the NPE-400, NPE-300, and NSE-1 This sample configuration is for a Cisco 7200 VXR chassis with an NPE-400 installed. The maximum points allowed for each PCI bus is 600 points. The I/O controller is considered a port adapter in bandwidth point calculation. Table 1-3 Valid Configuration-Cisco 7200 VXR Router with NPE-400 Left Bus Port Adapters: PA-E3 PA-E3 PA-4E1G/120 I/O Controller: C7200-I/O-2FE/E Total points left bus: Bandwidth Points Right Bus Port Adapters: 90 PA-E3 90 PA-2E3 0 PA-2E3 400 580 Total points right bus: Bandwidth Points 90 180 180 450 1-10 Cisco 7200 Series Port Adapter Hardware Configuration Guidelines OL-3875-11