The Catalyst 6000 Family Supervisor Engines delivers intelligent multilayer switching and network management; these engines also support two Gigabit Interface Converter (GBIC)-based Gigabit Ethernet uplink ports for increased port density and cost effectiveness.The Supervisor Engine 1A utilizes next-generation ASIC technology, building upon the original Supervisor Engine I to provide enhanced quality of service (QoS) to enable end-to-end support for mission-critical traffic. The Supervisor Engine 1A delivers the most advanced intelligent switching available in the industry, providing per-port application recognition, admission control, prioritization and policing with multiple hardware queues to minimize network congestion and packet latency. This advanced QoS support is essential for enabling network-wide deployment of mission-critical applications and Enterprise voice services and solutions.This Supervisor Engine 1A comes bundled with Policy Feature Card (PFC) and Multilayer Switch Feature Card (MSFC).