METHOD AND APPARATUS FOR REDIRECTING FORWARDING PATH OF SERVICE FLOW, AND SERVICE FLOW FORWARDING SYSTEM

摘要

The present invention discloses a traffic flow forwarding path redirection method and apparatus, and a traffic flow forwarding system. The method includes: determining a redirection parameter of a virtual network element through which a traffic flow passes, where the virtual network element includes multiple physical network elements; establishing, according to a topological relationship of the physical network elements in the virtual network element, a redirection path that is used to forward the traffic flow and that is between an inbound interface of a start physical network element and an outbound interface of an end physical network element; generating tunnel forwarding information of the redirection path; and sending, to the physical network elements on the redirection path, packet labels respectively corresponding to the physical network elements, so that the physical network elements on the redirection path forward a packet in the traffic flow on the redirection path in a tunnel manner. In embodiments of the present invention, a traffic flow forwarding path redirection process is simplified.