Enterasys Networks, Inc. Offers Fast Ethernet Stackable Switch. Enterasys Networks, Inc. Manufactures and supplies identity-based, service-oriented networking hardware and security software. The Fast Ethernet Stackable Switch is a high-performance Fast Ethernet edge switch that provides scalable, wire-rate performance in support of the bandwidth-intensive and delay-sensitive requirements of today`s demanding applications. With support for 8,000 MAC addresses, the system is an excellent choice for environments that require complete multilayer switching capabilities and support for high density [10/100Base-T, 100Base-FX] Ethernet ports.