计算机工程
計算機工程
계산궤공정
COMPUTER ENGINEERING
2013年
12期
75-78
,共4页
千兆冗余以太网%MAC控制器%硬件检测%链路状态检测%链路切换
韆兆冗餘以太網%MAC控製器%硬件檢測%鏈路狀態檢測%鏈路切換
천조용여이태망%MAC공제기%경건검측%련로상태검측%련로절환
gigabit redundant Ethernet%MAC controller%hardware detection%link status detection%link switch
针对千兆以太网冗余备份网卡的链路切换时间较长，难以满足应用要求的问题，提出一种基于“心跳”帧的新型千兆冗余以太网链路状态检测方法。通过改进MAC控制器，增加网络状态检测模块用于组织“心跳”帧，并根据检测网络延时对以太网络进行分类，得到Delay网络和No-Delay网络，利用“心跳”帧对冗余链路的实时监控以及MAC控制器对“心跳”帧的统计分析，快速检测出断开链路，缩短链路切换时间。测试结果表明，该硬件检测方法能够迅速检测出断开链路，并在20 ms之内完成冗余链路切换，保障网络通信的可靠性和稳定性。
針對韆兆以太網冗餘備份網卡的鏈路切換時間較長，難以滿足應用要求的問題，提齣一種基于“心跳”幀的新型韆兆冗餘以太網鏈路狀態檢測方法。通過改進MAC控製器，增加網絡狀態檢測模塊用于組織“心跳”幀，併根據檢測網絡延時對以太網絡進行分類，得到Delay網絡和No-Delay網絡，利用“心跳”幀對冗餘鏈路的實時鑑控以及MAC控製器對“心跳”幀的統計分析，快速檢測齣斷開鏈路，縮短鏈路切換時間。測試結果錶明，該硬件檢測方法能夠迅速檢測齣斷開鏈路，併在20 ms之內完成冗餘鏈路切換，保障網絡通信的可靠性和穩定性。
침대천조이태망용여비빈망잡적련로절환시간교장，난이만족응용요구적문제，제출일충기우“심도”정적신형천조용여이태망련로상태검측방법。통과개진MAC공제기，증가망락상태검측모괴용우조직“심도”정，병근거검측망락연시대이태망락진행분류，득도Delay망락화No-Delay망락，이용“심도”정대용여련로적실시감공이급MAC공제기대“심도”정적통계분석，쾌속검측출단개련로，축단련로절환시간。측시결과표명，해경건검측방법능구신속검측출단개련로，병재20 ms지내완성용여련로절환，보장망락통신적가고성화은정성。
To address the issue that the link switch time of gigabit Ethernet redundant Network Interface Card(NIC) is too long and difficult to meet the application requirements, a kind of hardware detection method is proposed. It is a new gigabit redundant Ethernet link status detection method on the basis of“heartbeat”frame. This method adds the network status detection module used for the organization of“heartbeat”frame through the improvement of MAC controller, and classifies the Ethernet into two types based on the network latencies:Delay network and No-Delay network. In addition, it can detect the broken link rapidly and shorten the link switch time according to the real-time monitoring to redundant link by“heartbeat”frame and statistical analyses to“heartbeat”frame by MAC controller. Test results indicate that this detection method can rapidly detect the disconnected link and the link switch time is in 20 ms, and it can guarantee the reliability and stability of the network communication.
