31-33
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
78-14099-04
Chapter 31 Configuring PFC QoS
Configuring PFC QoS
–
output service-policy keyword
–
class class_name destination-address, class class_name input-interface, class class_name
protocol, class class_name qos-group, or class class_name source-address policy map
commands
–
bandwidth, priority, queue-limit, or random-detect policy map class commands
Configuring PFC QoS
These sections describe how to configure PFC QoS on the Catalyst 6500 series switches:
• Enabling PFC QoS Globally, page 31-33
• Enabling Queueing-Only Mode, page 31-34
• Creating Named Aggregate Policers, page 31-35
• Configuring a PFC QoS Policy, page 31-37
• Enabling or Disabling Microflow Policing, page 31-50
• Enabling Microflow Policing of Bridged Traffic, page 31-50
• Enabling or Disabling PFC Features on an Interface, page 31-51
• Enabling VLAN-Based PFC QoS on Layer 2 LAN Ports, page 31-52
• Configuring the Trust State of Ethernet LAN and OSM Ingress Ports, page 31-53
• Configuring the Ingress LAN Port CoS Value, page 31-54
• Configuring Standard-Queue Drop Threshold Percentages, page 31-54
• Mapping CoS Values to Drop Thresholds, page 31-59
• Allocating Bandwidth Between LAN-Port Transmit Queues, page 31-64
• Setting the Receive-Queue Size Ratio on a 1p1q0t or 1p1q8t Ingress LAN Ports, page 31-64
• Setting the LAN-Port Transmit-Queue Size Ratio, page 31-65
• Configuring DSCP Value Maps, page 31-66
• Configuring PFC QoS Statistics Data Export, page 31-70
Note • PFC QoS processes both unicast and multicast traffic.
• With Release 12.1(11b)E and later releases, when you are in configuration mode you can enter
EXEC mode-level commands by entering the do keyword before the EXEC mode-level command.

Enabling PFC QoS Globally

To enable PFC QoS globally, perform this task:
Command Purpose
Step 1 Router(config)# mls qos Enables PFC QoS globally on the switch.
Router(config)# no mls qos Disables PFC QoS globally on the switch.