shows how a typical multitiered ecommerce website can benefit from using a 6509 chassis-based solution rather than a series of individual components. Internet Internet PIX firewalls (2) FWSM (2) Trunk 3750 switches (2) Trunk 6509 switches (2) 48-port modules (4) "Trunk Content switches (2) "Trunk CSM-2 (2) Trunk 3750 switches (2) Trunk Web servers (25) Trunk 3750 switches (4) Trunk App servers (10) Trunk 3750 switches (2) Trunk Individual network 6509 integrated network components components Figure 17-1. Individual versus integrated network components First, because all of the layers can be consolidated into a single device using VLANs, many of the switches are no longer needed and are replaced with Ethernet modules in the 6509 chassis. Second, because some layers do not need a lot of ports, ports can be better utilized. A module is not dedicated to a specific layer, but can be divided in any way needed. If we allocated a physical switch to each layer, there would be many unused ports on each switch, especially at the upper layers. Another benefit is that because the components are included in a single chassis, there are fewer maintenance contracts to manage (though modules like the FWSM and Ap- plication Content Engines [ACE] require their own contracts). Additionally, because all of the devices are now centralized, there only needs to be one pair of power outlets for each switch. The tradeoff here is that the power will no doubt be 220V 20A or more. Some of the new power supplies for the 6500e chassis require multiple power feeds per supply. The 6,000-watt AC power supply requires two power outlets per supply. The 8,700-watt AC power supply requires three outlets per supply, resulting in a total of six outlets per chassis! Chapter 17: Cisco 6500 Multilayer Switches The main advantages are supportability and speed. Each module is available through the switch itself in addition to its own accessibility, and, in the case of the ACE module, the configuration is a part of the Cisco IOS for the switch itself (assumin