Network loop detection method and device

The invention relates to a network loop detection method and device, and belongs to the field of communication technology. The method comprises that a port of a detector sends a detection message to a network regularly; and whether the detector receive the detection message is detected, and if YES, it is determined that a loop fault occurs in the network. The method and device have the advantages of realizing automatic and timely detection of the network loop, and avoiding network paralysis and influence on normal services caused by that equipment repeats and forwards broadcasting, multicasting and unknown unicasting messages continuously due to the network loop. 本发明涉及通信技术领域，尤其涉及种环路检测的方法及装置所述方法包括：通过检测设备的端口周期性发送检测报文至网络中；检测所述检测设备是否接收到检测报文，若是，则确认网络中发生了环路故障。本发明的有益效果在于：本发明的网络环路的检测方法及装置实现了网络环路自动及时的检测，避免了网络中的环路导致设备对广播、组播及未知名单播报文不断地复制与转发，造成网络瘫痪，影响正常业务。