QoS and VoIP

Table 1. QoS and VoIP product support

Feature

Product

Release introduced

Automatic QoS

5320 Series

Not Supported

Use Auto-sense with IP Phone support instead.

5420 Series

Not Supported

Use Auto-sense with IP Phone support instead.

5520 Series

Not Supported

Use Auto-sense with IP Phone support instead.

5720 Series

Not Supported

Use Auto-sense with IP Phone support instead.

7520 Series

Not Supported

Use Auto-sense with IP Phone support instead.

7720 Series

Not Supported

Use Auto-sense with IP Phone support instead.

VSP 4900 Series

VOSS 8.1

VSP 7400 Series

VOSS 8.0

VoIP traffic requires low latency and jitter.

If you use edge routers, configure ingress ports as core ports to treat VoIP traffic appropriately. In this case, the system trusts QoS markings that apply to VoIP traffic, and the system does not re-mark QoS settings. However, if this configuration is not sufficient, you can also apply filters, route policies, or re-mark traffic.