HP ProCurve Series 6120 Blade Switches Advanced Traffic Management Guide

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Quality of Service (QoS): Managing Bandwidth More Effectively
QoS Queue Configuration
Note Before changing the traffic groups’ priority mappings from the defaults, it is
important to examine the current policies that act on 802.1p priorities to
ensure that the policies best serve the behavior desired on the network,
including DSCP, VLAN, interface, or protocol rules.
Figure 5-33. Example of Removing Priorities from a Traffic Group
After removing the priority from the currently mapped queue, the template
becomes invalid because priority 0 is no longer mapped to any queue.
Figure 5-34. Example of Invalid Traffic Template Because a Priority is Unmapped
Mapping the priority to a new queue results in a valid traffic template.
ProCurve(cfg-tcgt-example)# show qos traffic-template example
TRAFFIC-TEMPLATE: example
Status : Valid
Queue-no Priorities Name
-------- ------------- --------------------
1 0,1,2 background-tcg
2 3 best-effort-tcg
3 4,5 controlled-load-tcg
4 6,7 control-tcg
ProCurve(cfg-tcgt-example)# no map-traffic-group 1 priority 0
ProCurve(cfg-tcgt-example)# show qos traffic-template example
TRAFFIC-TEMPLATE: example
Status : Invalid
Queue-no Priorities Name
-------- ------------- --------------------
1 1,2 background-tcg
2 3 best-effort-tcg
3 4,5 controlled-load-tcg
4 6,7 control-tcg