The forwarding search method and the search tree guaranteeing MPLS-L3VPN protocol and high speed data transfer.

摘要

packet search process from the output from the input of the packet forwarding engine in a single interface to manage a large number of ports In discloses a three-layer and four-layer forwarding to progress the Search method and forwarding the search tree. Forwarding the search method and search tree forwarding, MPLS-L3VPN (Multi Protocol Label Switching - Layer 3 Virtual Private Network) and supports high-speed data transfer service. Forwarding the search method, the packet header analyzing step, the parameter comparison and multiple VPN interface to be there to support the determination of crystal phase, L3 IP forwarding tree search step, L4 classification step, L4 determining the need for classification and search results returned provided with a step, the forward search tree, contains the destination address, which is composed of a plurality of distinguishing factor the root node, the root node of a certain number of distinguishing factor distinguishing factor among the plurality of the same intermediate node, wherein the plurality of nine minutes and a further final node is added to the final node and the VPN service is recognized as a result of all of the search argument.