Server end cross-domain data transmission optimization system and method in SDN network

Abstract

The invention relates to a server end cross-domain data transmission optimization system and method in the SDN network; the system comprises a SDN controller, a server and a SDN switch; the SDN controller comprises a standard SDN controller function module, a loop route manage module, a server manage module, and a server information obtaining module; the SDN switch comprises a standard SDN switch function module. The system and method can ensure user cross-domain access service flow and server cross-domain reply flow to pass the same link, thus optimizing the coupling speed, and optimizing cross-domain data transmission.

Description

technical field [0001] The present invention specifically relates to a system and method for realizing server-side cross-domain data transmission optimization in an SDN network. Background technique [0002] Autonomous systems, as independent network associations, together constitute the global Internet through mutual interconnection. The interconnection between autonomous domains mainly adopts the BGP (Border Gateway Protocol) routing protocol, which is a policy-based inter-domain routing protocol, through the deployment of routing policies to control inter-domain routing information Exchange, and then realize the guidance and orientation of cross-domain user data traffic. [0003] However, due to the relative independence of autonomous domains, each autonomous domain will define and deploy specific routing policies based on its own needs or regulations, and the routing policies within the autonomous domain are usually not disclosed to the public. Therefore, this will hav...

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Problems solved by technology

[0003] However, due to the relative independence of autonomous domains, each autonomous domain will define and deploy specific routing policies based on its own needs or regulations, and the routing policies within the autonomous domain are usually not disclosed to the public

Therefore, this will have an adverse impact on the cross-domain user data traffic arriving from or passing through this autonomous domain from other autonomous domains, making it impossible to reach the destination network according to the optimized (or expected) path, and due to the non-transparency of the routing policy , which also makes it difficult to realize the coordinated regulation of inter-domain routing policies, thereby reducing the forwarding efficiency of cross-domain user data traffic and affecting the overall operating performance of the global Internet

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