Superior Traffic Management and Queuing Characteristics of Catalyst 6500 series Gigabit Ethernet Modules
The Cisco Catalyst 6500 Series Gigabit Ethernet modules support multiple queues per port for Quality of Service. Each port supports Weighted Random Early Detection (WRED) for congestion avoidance within each queue, and Weighted Round Robin (WRR) for scheduling between queues and a strict priority queue for voice traffic. Additionally, multiple thresholds can be configured to manage differentiated levels of service.
Cisco Catalyst 6500 Series Switch