Configuring Queuing And Scheduling On M-Series I/O Modules; Finding Feature Information; Information About Queuing And Scheduling - Cisco Nexus 7000 Series Configuration Manual

Configuring Queuing and Scheduling on M-Series
I/O Modules
This chapter describes how to configure the QoS queuing and scheduling features on M-Series I/O modules
of the Cisco NX-OS device.
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Finding Feature Information

Your software release might not support all the features documented in this module. For the latest caveats
and feature information, see the Bug Search Tool at
for your software release. To find information about the features documented in this module, and to see a list
of the releases in which each feature is supported, see the "New and Changed Information"chapter or the
Feature History table in this chapter.

Information 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.
The queuing and scheduling processes allow you to control the bandwidth that is allocated to the traffic classes,
so that you achieve the desired trade-off between throughput and latency for your network.
Finding Feature Information, on page 89
Information About Queuing and Scheduling, on page 89
Licensing Requirements, on page 92
Prerequisites for Queuing and Scheduling, on page 93
Guidelines and Limitations, on page 93
Configuring Queuing and Scheduling, on page 94
Verifying the Queuing and Scheduling Configuration, on page 109
Configuration Examples for Queuing and Scheduling, on page 110
Feature History for Queuing and Scheduling, on page 112
C H A P T E R
https://tools.cisco.com/bugsearch/
Cisco Nexus 7000 Series NX-OS Quality of Service Configuration Guide
9
and the release notes
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