Aruba Infrastructure Recommendations for Voice Quality

Aruba Infrastructure Recommendations for Voice Quality

This section lists specific Aruba infrastructure recommendations to manage voice traffic and maintain expected voice quality.
If the deployment has services which require service-discovery, set broadcast filtering to ARP only. Consult with Aruba if there are address-resolution issues with the respective discovery protocol.
Aruba Infrastructure Recommendations for Voice Quality
Recommendation
Required
Recommended But Not Required
Set delivery traffic indication message (DTIM) interval to 1.
Note: A value of 2 is also acceptable for certain deployments depending on the voice application (and other voice related aspects such as Push-to-Talk), as well as on the potentially mixed types of devices sharing the same SSID, the battery life of each type, and the Power Save configuration of each client product.
Create a dedicated user role on Aruba for voice devices, according to application deployment needs. Create a session access control list (ACL) and place the voice protocols in the prioritized high queue.
Broadcast Filtering set to All or address resolution protocol (ARP).
Disable Dot1x Termination.
Set Probe Retry to its default Enable.
Set Max Tx Failure to its default Disable (max-tx-fail=0).
Enable 802.11d/h.
Enable Mcast-rate-opt (needed for multicast to go at highest rate).
Beacon-rate set with a rate that is also basic-rate.
Set Local Probe Request Threshold to its default of 0 (disable).
Disable Band Steering.
Enable voice Aware Scan and ensure voice traffic of the given ACL definition (of the deployed App) is detected on the controller.
Disable 80 MHz support.