WLAN Infrastructure Recommendations for Voice Support

WLAN Infrastructure Recommendations for Voice Support

WLAN Infrastructure Recommendations for Voice Support
Setting
Value
Infra type
Controller based
Security
WPA2 or WPA3
Voice WLAN
5 GHz only
Encryption
AES
Authentication: Server Based (Radius)
802.1X EAP-TLS/PEAP-MSCHAPv2
Authentication: Pre-Shared Key (PSK) Based, if necessary.
Enable both PSK and FT-PSK.
Note: Device automatically selects FT-PSK. PSK is necessary to support legacy/non-11r devices on same SSID.
Operational Data Rates
2.4 GHz:
  • G: 12, 18, 24, 36, 48, 54 (disable all lower rates, including 11b-legacy)
  • N: MCS 0 -15
5 GHz:
  • A:12, 18, 24, 36, 48, 54 (disable all lower rates)
  • AN: MCS 0 - 15
  • AC: MCS 0 - 7, 8
  • AX: MCS 0 - 7, 8, 9, 10, 11
Note: Adjust rate settings according to environmental characteristics.
Fast Roam Methods
If supported by infrastructure:
  • FT (802.11R)
  • OKC or PMK Cache
Note: Device priority order from the top.
Beacon Interval
100
Channel Width
2.4 GHz: 20 MHz
5 GHz: 20 MHz
WMM
Enable
802.11k
Enable only Neighbor Report. Do not enable any 11k measurements.
802.11w
Enable as optional
802.11v
Enable
AMPDU
Enable
Note: Local environmental/RF situations (such as high interference level, collisions, obstructions) may yield local high retries ratio, delays, and packet-drops. The AMPDU feature can degrade voice performance in addition to the challenging RF. In such cases, it is recommended to disable the AMPDU.