VPN Tunneling Quality of Service

To support quality of service (QoS) on your internal network via VPN tunneling, the system translates the "inner" IP packet header (for Application-layer packet encapsulation, for example) to the "outer" packet header, thus enabling Network layer-level packet prioritization. Routers in the network are then able to identify, prioritize, and appropriately forward VPN tunneling IPsec packets across the network. This feature helps ensure that you are able to support time-sensitive IP packet transmission and reception like IP video streams, for example.

VPN tunneling QoS applies to UDP (IPsec) packets only. SSL packet encapsulation and forwarding behavior remains unchanged when you employ the QoS feature.