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Configuring QoS Settings on AOS-S Switches
QoS Quality of Service. It refers to the capability of a network to provide better service and performance to a specific network traffic over various technologies. is used to classify and prioritize traffic throughout a network. QoS enables you to establish an end-to end traffic-priority policy to improve the control and throughput of important data. You can manage available bandwidth so that the most important traffic goes first.
HPE Aruba Networking Central allows you to configure QoS settings on individual or group of switches through the UI. The settings that you apply at the group level are applied to all switches in the group, except in the following conditions:
- A switch has a configuration override—That is, a QoS setting is changed at the device level. Once you update or apply a setting at the device level, any further changes that you make at the group level are not applied to the switch. A notification for the configuration override is added to the Audit Trail. If you remove local overrides on a switch, then all QoS configurations that were applied to the switch are removed, and the configurations available at the group level are applied to the switch.
For example, when a switch does not have any policies, if you add a policy for port 2 and 3 at the group level, then the policy is applied to the switch. If you add a policy for port 4 at the device level, and then add a policy for port 5 at the group level, then the policy for port 5 is not applied to the switch. You must add the same policy again at the device level to apply the policy. If you remove the local overrides on the switch, then any policies that were updated or added to the switch and the associated QoS class are replaced by the policies at the group level.
- A switch has invalid port number or VLAN Virtual Local Area Network. In computer networking, a single Layer 2 network may be partitioned to create multiple distinct broadcast domains, which are mutually isolated so that packets can only pass between them through one or more routers; such a domain is referred to as a Virtual Local Area Network, Virtual LAN, or VLAN. ID—The port or VLAN to which the setting was applied at the group level is not available or is invalid on the switch. For example, if you apply a setting to port 15 and 16 at the group level, and a switch has only ports 1 to 10, then the settings will not be applied to that switch.
The setting that can be configured using the UI are:
- Creating QoS traffic policies on switches in your network to enable traffic-handling rules across the network.
- Defining QoS classes for a QoS Policy.
- Changing the priorities of traffic from various segments of your network as your business needs change.
Creating a QoS Traffic Policy
- In the WebUI, set the filter to a group containing at least one switch.
- Under , click > .
- Click the AOS-S or icon to view the switch configuration dashboard.
- Click . The QoS page is displayed.
- In the accordion, click + to add a new QoS traffic policy.
- Configure the following parameters.
Table 1: Configuring QoS policy
Name
Description
Value The name of the QoS policy.
A string
The target where the policy is applied.
or
Select one or more ports or VLAN ID to be mapped to a traffic policy.
Numeric value
- Click .
Editing a QoS Policy
To edit a QoS policy, point to the row for the QoS policy, and click the edit icon.
Deleting a QoS Policy
To delete a QoS policy, point to the row for the QoS policy, and click the delete icon.
Adding a QoS Class for the Policy
To define a QoS class for a policy, complete the following steps:
- Select a QoS policy from the New QoS Policy table. The QoS Class table is displayed below the New QoS Policy table with the configured QoS classes.
- Click to add a QoS classifier for the selected policy. The Add QoS classifier window is displayed.
- Configure the following parameters.
Editing a QOS Class
To edit a QoS Class, point to the row for the QoS policy class, and click the edit icon.
Deleting a QOS Class
To delete a QoS Class, point to the row for the QoS policy class, and click the delete icon.
Configuring DSCP Map
DSCP map table displays mappings between Incoming DSCP and priority.
To change priority value associated with a DSCP code point, complete the following steps:
- In the WebUI, set the filter to a group containing at least one switch.
- Under , click > .
- Click the AOS-S or icon to view the switch configuration dashboard.
- Click . The QoS page is displayed.
- Expand the accordion.
- Select the Incoming DSCP row for which you want to change the priority and click the edit icon. The Edit DSCP window is displayed.
- Select the priority value from the drop-down.
- Click .