Questions on QoS for Voice

[LouiseSmith]

Hello,

If I setup a new VLAN for the voice, should I still program the Qos for PBX since data and voice are in differenct subnet/vlan?

If yes, how do I program QoS on voice vlan to have priority 6?

Thank you

[Vince-Whirlwind]

You would normally configure the end devices to correctly tag the traffic.

"6" is not the IEEE standard CoS setting for voice.

[Priyansha]

adding the voice keyword to a VLAN does the following:
enables LLDP-MED
sets 802.1p to 6
sets DSCP to EF, and
transmits the Vlan ID to the end device.

[Vince-Whirlwind]

I've been wanting to see this spelled out for years!

Thanks!

On a side note, notice HP uses a value of "6" for 802.1p?

As you can see, this is not IEEE-standard-compliant, the correct value should be "5":
http://en.wikipedia.org/wiki/IEEE_P802.1p

I've been hassling HP about this for years...