In order to meet the evolving needs of today's networks the Catalyst 5000 Family offers five supervisor engines that can be deployed in any Catalyst 5000 chassis. This broad range of supervisor offerings allows the Catalyst 5000 Family to deliver products that are optimized for the wiring closet or small- to medium-sized campus backbones.The Catalyst 5505 is a high-performance, five-slot chassis for the evolving Catalyst 5500 Series. The Catalyst 5505 combines the size of the original Catalyst 5000 with the performance boost and added features of the Catalyst 5500. The Catalyst 5505 is ideal for high-performance wiring closet and data applications.The Catalyst 5505 protects customers' Catalyst 5000 Family investments by seamlessly integrating existing Catalyst 5000 interface modules and features into a high-performance chassis. Customers who desire a performance boost for existing Catalyst 5000 chassis can redeploy all Catalyst 5000 Family line cards in the five-slot Catalyst 5505. Supervisor Engines II or III can also be used in a Catalyst 5505. The Catalyst 5505 can be configured for backbone applications with feature-rich, scalable Fast Ethernet, ATM, and FDDI, as well as optional redundant Supervisor Engines and power supplies. In the wiring closet, switched Ethernet, desktop 10/100, Token Ring, and ATM modules provide high-performance connectivity. The Catalyst 5505 supports up to 194 switched Ethernet ports at a multimillion-pps forwarding rate.