H3C S5820X Series Configuration Manual

Also see for s5800 series: Installation manual Instruction manual Command reference Quick start Troubleshooting guide

Contents

H3C S5820X Series Configuration Manual Manual pdf 32 page image

3-13 QoS Configuration ApproachesThis chapter includes these sections:z QoS Configuration Approach Overviewz Configuring a QoS PolicyQoS Configuration Approach OverviewTwo approaches are available to configure QoS: Non-Policy Approach and Policy Approach.Some features support both approaches, but some support only one.Non-Policy ApproachIn non-policy approach, you configure QoS service parameters directly without using a QoS policy. Forexample, you can use the line rate feature to set a rate limit on an interface without using a QoS policy.Policy ApproachIn policy approach, you configure QoS service parameters by using QoS policies. A QoS policy definesthe shaping, policing, or other QoS actions to take on different classes of traffic. It is a set ofclass-behavior associations.A class is a set of match criteria for identifying traffic. It uses the AND or OR operator:z If the operator is AND, a packet must match all the criteria to match the class.z If the operator is OR, a packet matches the class if it matches any of the criteria in the class.A traffic behavior defines a set of QoS actions to take on packets, such as priority marking and redirect.By associating a traffic behavior with a class in a QoS policy, you apply the specific set of QoS actionsto the class of traffic.Configuring a QoS PolicyFigure 3-1 shows how to configure a QoS policy.