CAJ | 학술논문

Openflow是现有 SDN(软件定义网络)系统中最核心的技术之一。文章针对现有 SDN 技术中可能存在的资源紧张问题，提出了基于资源复用的 Openflow流表存储优化方案，涉及 SDN中 Openflow流表的操作。在现有 Openflow v1.3.1的基础上，定义了一种新的流表结构，提出了一种计算流表关联度的算法，并设计了更新流表的新流程。实验结果表明，该方案优化了流表表项的信息存储，能够高效利用现有硬件资源，达到在同样硬件条件下存储更多的流表表项的目的。
Openflow시현유 SDN(연건정의망락)계통중최핵심적기술지일。문장침대현유 SDN 기술중가능존재적자원긴장문제，제출료기우자원복용적 Openflow류표존저우화방안，섭급 SDN중 Openflow류표적조작。재현유 Openflow v1.3.1적기출상，정의료일충신적류표결구，제출료일충계산류표관련도적산법，병설계료경신류표적신류정。실험결과표명，해방안우화료류표표항적신식존저，능구고효이용현유경건자원，체도재동양경건조건하존저경다적류표표항적목적。
Openflow is one of the most key core technologies in the existing Software Defined Network (SDN)systems.In view of the possible resource shortage in the existing SDN technology,this paper proposes a resource-reuse-based Openflow flow ta-ble storage optimization scheme involving the operation of the Openflow flow table in SDN.On the basis of the existing Open-flow v1.3.1,it defines a new table structure,proposes an algorithm for computing the correlation degree of the flow table and designs a new procedure for its updating.The experimental results show that this scheme optimizes the information storage of the table entries,efficiently utilizes the available hardware resource,thereby storing more table entries under the same hard-ware conditions.