Just a suggestion:
- prioritize traffic from the Voice VLAN and the correct DSCP/802.1p values. (something like)
qos type-of-service diff-services
qos dscp-map 46 priority 6 # 46 = EF (Expedited Forwarding) for RTP audio
vlan <VOICE_VLAN_ID>
qos priority 6
- if your phones support LLDP-MED, they may request priority from the switch.
Also, DO NOT USE priority 7, since it is reserved for network control traffic. Use Priority 6 for RTP (voice/audio), Priority 5 for signaling (SIP, SCCP), Priority 4 or lower for normal data.
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Shpat | ACEP | ACMP | ACCP | ACDP
Just an Aruba enthusiast and contributor by cases
If you find my comment helpful, KUDOS are appreciated.
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Original Message:
Sent: Mar 28, 2025 09:11 AM
From: t.antony
Subject: Voice VLAN QoS
Our VoIP phones are connected to a VoIP router (not on the company network), then uplinked to Aruba 2930F switch. Then there's a connection from back of the VoIP phone to computers for LAN. Occasionally (may be once a month), the phones show unregistered, but the LAN connection to computer stays up.
What could cause this? I don't have any QoS in the Voice VLAN.
Does this sound like a QoS issue and not a connection issue?
Do I need to set the Voice VLAN QoS priority to something like 6? Since 7 is the highest?
https://arubanetworking.hpe.com/techdocs/AOS-S/16.11/ATMG/WC/content/common%20files/pri-voi-vla-qos-opt.htm