 These switches switches, the model number reflects the number 7018. As with that contain four slots are shown in Figure 18-1. Additional models of slots within the available. and six slots. At the time of this writing, they are being were released not PITTY ****** Figure 18-1. Nexus 7018 and 7010; courtesy of Cisco Systems, Inc.; unauthorized use not permitted the One way big the thing air to flows. remember The when designing your data center around these chassis cold to aisle. back. This allows the switch to be mounted SO the is front designed of the SO that air flows front Nexus 7010, like the rest of the Nexus line, switches is is in the asked The 7018 multiple chassis, however, at is designed such that the air flows from side in the documentation. people Cisco about this, and their reply is the to side. I've though I'm sideways. I've never seen a switch mounted of racks, apparently mounted The 7018 is designed to be placed at the end same of the as the row reasoning execs discount sure someone has done it somewhere. This is in such a fashion, hardware for no reason other than side-to-side a pretty airflow. big deal, The and I've original had Chapter 18: Cisco Nexus 6509 and 6509E had side-to-side airflow, too. These execs would only use the 6509-V-E or older NEBS chassis, because they employed a "proper" airflow design. If you do mount these monsters in a cabinet, consider keeping the cabinets to either side empty, since they require significant airflow for proper cooling. From what I've seen, it looks like the new four- and six-slot chassis Nexus 7000s will also incorporate side- to-side airflow. The Nexus 7000s are built around something called midplane architecture. A switch like a 6509 is built with a backplane architecture. Backplane means that all modules, power supplies, and fans are installed from the front, connecting internally to the back of the switch. The 7000s are designed in such a way that power and fans are installed from the back, while modules are installed from the front. Additionally, t