VIRTUAL PRIVATE NETWORK VPN SERVICE OPTIMIZATION METHOD AND DEVICE

Embodiments of the present invention provide a VPN service optimization method and a network device. A first network device includes: an analysis unit, configured to analyze a data stream entering a network on which the first network device is located, to obtain a traffic characteristic of a target data stream; and a route advertisement unit, configured to advertise a FlowSpec route, where the FlowSpec route carries redirect indication information, the redirect indication information includes identification information, the identification information is used to uniquely identify a first VPN instance in a second network device, the redirect indication information is used to instruct to redirect the data stream including the traffic characteristic of the target data stream to the first VPN instance, the second network device is an edge device of a service provider network accessed by the network, and the first VPN instance is a target VPN instance to which the target data stream is redirected in the second network device.