 switch/router Rack #2 Core-2 6509-E Core switch/router Rack #3 Internet Internet router Rack #2 HQ-Colo Colo connection router Rack #3 Figure 33-1. Sample equipment list When you know what equipment you'll be using, you should break down each device SO that you know exactly what hardware to order. This step will help you immensely throughout the process of designing and building the network. When you get the equipment, you can expand the spreadsheet to include the actual serial num- bers of each part. Figure 33-2 shows a sample spreadsheet for planning one of the 6509s I've chosen. Notice that I've included not only the modules, but the extra memory as well. Interfaces Device Function Slots 10/100/1G SF-GBIC Core-1 WS-C6509-E Core Switch/Router Slot1 WS-X6748-GE-TX 48 Port 10/100/1000 FE Blade Slot2 WS-X6748-GE-TX 48 Port 10/100/1000 FE Blade Slot3 WS-X6748-GE-TX 48 Port 10/100/1000 FE Blade Slot4 WS-X6748-GE-TX 48 Port 10/100/1000 FE Blade Slot5 WS-SUP720-3B= Supervisor - 720 Fabric Enabled Slot6 WS-SUP720-3B= Supervisor 720 Fabric Enabled Slot7 WS-SVC-FWM-1-K9= Firewall Switch Module Slot8 Slot9 WS-X6748-GE-TX 48 Port 10/100/1000 FE Blade MSFC Mem MEM-MSFC2-512MB MSFC 512M DRAM Sup Mem MEM-S2-512MB Sup 512M DRAM Flash Mem MEM-C6K-CPTFL256M 256M Compact Flash Upgrade Fan Tray WS-C6509-E-FAN Fan Tray PS #1 WS-CAC-3000W-US 3000W Power Supply PS #2 WS-CAC-3000W-US/2 3000W Power Supply Figure 33-2. Core switch hardware detail Documentation Once you have the hardware figured out, it's often up to management to get the equipment ordered. You'll probably need to help with the ordering process by pro- viding lists of part numbers and quantities. Once the order gets submitted, you may have to wait several weeks for the equipment to arrive. Now, you need to map every interface on every device. This may sound excessive to some, but planning where every device will connect will save you aggravation later. Having a plan like this can also let you hand off the work of connecting the devices to someone else. This step lets yo