Patent ID: 7957276

Claim:
An apparatus for call admission control and preemption control of traffic over a secure network, the apparatus comprising: a destination measurement device configured to be located at a destination and to receive information regarding traffic received at the destination from a source over a secure network, the destination measurement device being configured to calculate a carried traffic per differentiated services code point (DSCP) based upon the information, which comprises at least one of an ingress time stamp of received packets or a packet sequence of received packets; and a call admission control and preemption control coupled between a source configured to send traffic through the secure network and said secure network, the call admission control and preemption control configured to admit or deny traffic into said secure network based on calculated carried traffic for at least one DSCP; wherein characteristics of the secure network are unknown to the destination measurement device and the call admission control and preemption control except via the information received by the destination measurement device at the destination regarding at least one of the ingress time stamp of the received packets or the packet sequence of the received packets.