| 摘要 |
<p>The present invention discloses a method, system and apparatus for protecting a control Virtual Local Network in an Ethernet ring network. The method comprises: in a process of creating an Ethernet Automatic Protection Switching (EAPS) domain, node devices defined as Ethernet network nodes setting a mode for processing received messages in the control VLAN according to additional information in a protocol message which can distinguish different types of protocol messages, and then opening forwarding function of ports in a ring within the control VLAN. According to the present invention, when a domain is created, occurrence of broadcast storm and packet-loss phenomenon is prevented by taking a series of measures, such as closing forwarding function of ports on the ring within the control VLAN, and receivable protocol messages are set in order to control the VLAN, such that non-protocol messages are not processed, thus the normal operation of the control VLAN is ensured after opening the forwarding function of the ports on the ring within the control VLAN.</p> |
