HP 2610-PWR - Manual (Page 208)

Quality of Service (QoS): Managing Bandwidth More Effectively
Preparation for Configuring QoS
2. Use the show qos commands to identify the currently configured QoS
policies.
3. Determine which of the existing policies you can remove to free up rule
resources for the QoS policy you want to implement. Depending on your
network topology and configuration, you can free up rule resources by
moving some policies to other devices. Another alternative is to inspect
the switch’s existing QoS configuration for unnecessary entries or ineffi­
cient applications that could be removed or revised to achieve the desired
policies with less resource usage. Table 6-8 on page 6-15, or the informa­
tion displayed by the
qos resources help command, can help you to deter­
mine the resource usage of QoS policies.
Examples of QoS Resource Usage
Demonstrating Differing Resource Usage on Different Ports.
Suppose that VLANs 111 and 222 on a switch are configured for VLAN QoS.
Ports 1 and 2 belong to both VLANs. Ports 3 and 4 belong only to VLAN 222.
Also, device-priority QoS is configured for five IP addresses.
ProCurve(config)# qos device-priority 10.10.10.150 priority 6
ProCurve(config)# qos device-priority 10.10.10.153 priority 6
ProCurve(config)# qos device-priority 10.10.10.155 priority 6
ProCurve(config)# qos device-priority 10.10.10.157 priority 6
ProCurve(config)# qos device-priority 10.10.10.159 priority 6
ProCurve(config)# vlan 111 qos priority 3
ProCurve(config)# vlan 222 qos priority 5
ProCurve(config)# show qos resources
QoS Resource Usage
Rules Rules Resources Resources
Type Used Maximum Used Required
-----------------|-----|-------|---------|-------
-
interface/Vlan | 2 | 127 | 1 | 1
type-of-service | 0 | 64 | 0 | 1
dev-pri/L4-port | 10 | 128 | 1 | 1
2 of 3 QoS resources used
All ports are configured for Two rules are used for each device-priority
five QoS device priorities. assigned., resulting in 10 rules used. One
resource is required and used.
VLANs 111and 222 are
configured for VLAN QoS
One rule is used for each VLAN priority assigned,
priority. resulting in 2 rules used. One resource is required
and used.
Figure 6-4. Example of QoS Resource Usage with Device-Priority and VLAN QoS
6-18