Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide, Rel. 12.2(25)SEF1

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Cisco Catalyst Blade Switch 3020 for HP Software Configuration Guide
OL-8915-01
Chapter 27 Configuring QoS
Understanding QoS
See the “Classifying, Policing, and Marking Traffic on SVIs by Using Hierarchical Policy Maps” section
on page 27-51 for an example of a hierarchical policy map.
Figure 27-5 shows the policing and marking process when hierarchical policy maps on an SVI.
Figure 27-5 Policing and Marking Flowchart on SVIs
92355
Ye s
Ye s
No
No
Pass
through Drop
Mark
Get the VLAN and
interface-level classification
results for the packet.
Is an interface-level policer
configured for this packet?
Check if the packet is in the
profile by querying the policer.
Check out-of-profile action
configured for this policer.
Drop packet.
Modify DSCP according to the
policed-DSCP map. Generate
a new QoS label.
Start
Done