Configuring a QoS policy for Voice over IP and Data traffic (Example)

Configuring Layer 2 802.1p CoS and Layer 3 DSCP values to prioritize how VoIP traffic from different phones is handled compared to data traffic:

Softphone traffic

DSCP 46; 802.1p CoS priority 6

Avaya phone traffic

DSCP 34; 802.1p CoS priority 3

Miscellaneous phone traffic

DSCP 26; 802.1p CoS priority 3

Data traffic

DSCP 000000; 802.1p CoS priority 0

The following QoS configuration creates and assigns a QoS policy to VLAN 1 that prioritizes VoIP and data traffic in this way:

A QoS policy for voice over IP and data traffic