| 摘要 |
PURPOSE: A method of supplying differentiated services by packets of a VPN(Virtual Private Network) in an MPLS(Multi Protocol Label Switch) VPN is provided to determine costs of each label switch path, and to classify the label switch paths, then to classify packets of the VPN according to priority to map the label switch paths with the packets, thereby supplying differentiated services according to the label switch paths. CONSTITUTION: A packet classifying unit performs a VPN packet classifying step(2100). The packet classifying unit determines priority of VPN packets in reference to consideration elements(2200). The packet classifying unit assigns VPN-IPv4 addresses by order of the determined VPN packets(2300). Priority of the packets is reflected through a router delimiter value of a VPN-IPv4 address. A packet label assigner assigns labels of each packet by using classified label switch paths and the packets. |
