Configuring Queuing And Scheduling; About Queuing And Scheduling - Cisco Nexus 9000 Series Configuration Manual

Configuring Queuing and Scheduling

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About Queuing and Scheduling

Traffic queuing is the ordering of packets and applies to both input and output of data. Device modules can
support multiple queues, which you can use to control the sequencing of packets in different traffic classes.
You can also set weighted random early detection (WRED) and taildrop thresholds. The device drops packets
only when the configured thresholds are exceeded.
Traffic scheduling is the methodical output of packets at a desired frequency to accomplish a consistent flow
of traffic. You can apply traffic scheduling to different traffic classes to weight the traffic by priority.
About Queuing and Scheduling, page 93
Modifying Class Maps, page 94
Congestion Avoidance, page 94
Congestion Management, page 94
Explicit Congestion Notification, page 94
Traffic Shaping, page 97
Licensing Requirements for Queuing and Scheduling, page 97
Prerequisites for Queuing and Scheduling, page 97
Guidelines and Limitations, page 98
Configuring Queuing and Scheduling, page 100
Configuring Congestion Management, page 108
Applying a Queuing Policy on a System, page 119
Verifying the Queuing and Scheduling Configuration, page 120
Controlling the QoS Shared Buffer, page 120
Monitoring the QoS Packet Buffer, page 121
Configuration Examples for Queuing and Scheduling , page 122
Cisco Nexus 9000 Series NX-OS Quality of Service Configuration Guide, Release 7.x
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