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QoS Prioritization for VoIP using DiffServ
Hello,
I am trying to understand and configure QoS prioritization for VoIP using DiffServ (46).
I find this configuration very counter-intuitive, but we have about 50 of them, so I have to figu...
I apologized for the late response. :( I forwarded your recent post to the higher tier of NETGEAR Support and just got a feedback today.
As per the higher tier of NETGEAR Support, based from the attachment, the configuration looks fine on AF31 and EF46 for DSCP.
Regards,
DaneA
NETGEAR Community Team
Hi RI-IT,
Welcome to the community! :)
I inquired your post to the higher tier of NETGEAR Support and just got a feedback today. As per the higher tier of NETGEAR Support, QoS on VOIP Traffic is an expedited forwarding, specific VOIP configuration. NETGEAR switch/es can prioritize this traffic using the DSCP traffic queue manager. When the higher tier of NETGEAR Support configured it, it was set to 5 – 6 level priority. Never had set it to 7 which had been a preferred rule and it seems to be fine.
The class_voip configuration is only necessary if the phone does not attach to the packet 101110 bit value. Then, you need to go in and manually setup a class for the QoS purpose. Now if the phone does add this bit value, then simple DSCP priority should already be EF as soon as DSCP is enabled. Following the guide here, it seems it needs to be updated for the new GUI as well as some of the configurations are seemingly incorrect and not correctly appropriated.
Regards,
DaneA
NETGEAR Community Team
Hi DaneA,
Thank you for your response - it is much appreciated.
Please see my attached screen-shots - this is how I have configured my switches to give the highest priority for our VoIP environment. We are using DSCP 46 (EF) for RTP and DSCP 26 (AF 31) for SIP. I have assigned queue number 2 to SIP and queue number 3 for RTP, but again, if you (or the higher Tier of Support as mentioned below) could take a look at the attached screen-shots, it would be greatly appreciated. I would just like to know if you think my configuration to give the appropriate priority for RTP and SIP (queue 3 & 2 respectively), is correct based on the attached screen-shots.
Thank you!
I apologized for the late response. :( I forwarded your recent post to the higher tier of NETGEAR Support and just got a feedback today.
As per the higher tier of NETGEAR Support, based from the attachment, the configuration looks fine on AF31 and EF46 for DSCP.
Regards,
DaneA
NETGEAR Community Team
Okay great, thank you very much!
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