General description

VAS Experts DPI allows to modify the value in priority field of the packets that pass it. This modification depends on the detected protocol and autonomous system. The following fields are supported:

1. DSCP/TOS in IP packets' headers.
2. Priority in VLAN and QinQ packets' headers.
3. Traffic class in MPLS packets' headers.

A router or shaper can now utilize this marking to provide the required QoS for specified protocols - even in case they have no own DPI capabilities.