CAJ | 학술논문

为满足调度与变电站一体化系统双网架构下的 TCP 通信，提出一种基于组播的链路状态监测与 TCP 通信方法。该方法包括组播报文监测、智能网卡选择、实时状态判断和未知节点过滤。组播报文监测通过接收对方发送的组播报文监测到对方的通信链路状态；智能网卡选择可以根据通信链路状态和网络流量等信息选择最优网络进行通信；实时状态判断确保在通信过程中网络发生故障后能够及时中断通信；未知节点过滤能够主动拒绝系统外的未知节点发起的通信请求，保证系统的安全稳定。链路状态监测与 TCP 通信方法能够实现在调度与变电站一体化系统双网架构下的高效、可靠和安全的 TCP 通信。
위만족조도여변전참일체화계통쌍망가구하적 TCP 통신，제출일충기우조파적련로상태감측여 TCP 통신방법。해방법포괄조파보문감측、지능망잡선택、실시상태판단화미지절점과려。조파보문감측통과접수대방발송적조파보문감측도대방적통신련로상태；지능망잡선택가이근거통신련로상태화망락류량등신식선택최우망락진행통신；실시상태판단학보재통신과정중망락발생고장후능구급시중단통신；미지절점과려능구주동거절계통외적미지절점발기적통신청구，보증계통적안전은정。련로상태감측여 TCP 통신방법능구실현재조도여변전참일체화계통쌍망가구하적고효、가고화안전적 TCP 통신。
A kind of link monitoring based on the multicast and TCP communication method is proposed to satisfy TCP communication under the architecture of dual network in the dispatch and substation integration system.This method includes monitoring by multicast,smart network interface card (NIC) selecting,judging on real-time status and filtering based on unknown nodes.The monitoring by multicast can mutually monitor the link status by receiving the opponent multicast packet. The smart NIC selection can communicate by selecting the optimal network according to each other”s link status and network traffic.The judging on real-time status ensures that communication can be promptly interrupted after a network failure occurs. The filtering based on unknown nodes can actively refuse the communication request of the unknown node initiated outside the system,and ensures the security and stability of an system.The method of link monitoring and TCP communication is able to achieve efficient,safe and reliable TCP communication under the architecture of dual network in dispatch and substation integration system.