The Avaya Ethernet Routing Switch 5000 series is a set of premium stackable LAN switches providing high availability, security, and flexibility for wiring closets, data centers, and small core networks. The switches support up to 400 ports and stacking of up to 8 units, with resiliency even if a unit fails. They also support features such as Power over Ethernet, dynamic routing, auto-QoS, and virtual hot-swapping of failed units without interrupting traffic.