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
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,
ProCurve(config)# qos
ProCurve(config)# show qos resources
QoS Resource Usage
Type |
| Rules |
| Rules |
| Resources |
| Resources |
Used | Maximum Used | Required | ||||||
0 | 64 | 0 | 1 | |||||
10 | 128 | 1 | 1 |
2 of 3 QoS resources used
All ports are configured for five QoS device priorities.
VLANs 111and 222 are configured for VLAN QoS priority.
Two rules are used for each
One rule is used for each VLAN priority assigned, resulting in 2 rules used. One resource is required and used.