Dynamic virtual private network (VPN) tunnel quality of service (QoS) treatment
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Apr 28, 2005
app pub date -
Dec 14, 2000
filing date -
Dec 14, 2000
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Dynamic Quality of Service (QoS) treatment of traffic within a secure Virtual Private Network (VPN) tunnel is provided by attaching a QoS marker to data traffic at an ingress end of the VPN tunnel. The QoS marker is obtained by querying a policy database. The policy database returns QoS information, from which the QoS marker is derived. The policy data base can be queried by a VPN Gateway at an ingress end of the tunnel during tunnel setup, and/or at any time following tunnel setup to obtain updated QoS information. This updated QoS information is then propagated through the VPN tunnel to a VPN gateway at the opposite end of the VPN Tunnel, so that it can be used for egress processing of the tunnel. traffic without renegotiating the Security Association. Consequently, re-establishment of the tunnel is not required in order to change the QoS treatment of tunnel traffic.
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