Business requirement transformation and deployment method for SDN (Software Defined Network)

Abstract

The invention discloses a business requirement transformation and deployment method for a SDN (Software Defined Network). The method mainly comprises the following steps: 1) a service function chain is built according to network business requirements raised by a user; 2) a local controller reports resource conditions of a bottom network node to a root controller; 3) the root controller designs a service function instance chain; 4) each service function instance is analyzed to be a multistate network strategy selection mechanism; 5) according to the current network state, the root controller selects a proper network strategy to be issued to a corresponding local controller; 6) the local controller combines instances from different service function instance chains on the same network node; 7) the local controller transforms a complicated condition strategy in the same network strategy into a plurality of simple condition strategies; 8) the local controller compiles the combined strategy into an OpenFlow flow table; and 9) the local controller issues the flow table to the bottom network nodes, and the strategy is deployed.

Description

technical field [0001] The present invention relates to SDN (Software Defined Network, software defined network) network policy management, in particular to a business requirement transformation and deployment method that simplifies SDN programming. Background technique [0002] The existing network architecture is huge and complex, and the complexity of network management and deployment is high, which forms a sharp contradiction with the increasing network scale and user needs. Software Defined Networking (SDN) proposes a new type of network architecture. One of its basic features is to use open and standard interfaces, such as OpenFlow and ForCES (ForwardingandControlElementSeparation), to replace the private configuration syntax of each device supplier. , in order to achieve the purpose of simplifying network configuration tasks, which provides a new solution for future network management. [0003] SDN is a new type of network architecture whose goal is to simplify netwo...

AI Technical Summary

Problems solved by technology

However, the current programming language only realizes partial policy translation, and does not provide an integration of the entire network deployment process.

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