A METHOD FOR IMPLEMENTING ON-RING PROCESS, OFF-RING PROCESS AND DATA FORWARDING IN RESILIENCE PACKET DATA RINGNET AND A NETWORK DEVICE THEREOF

摘要

A method for implementing on-ring process and off-ring process of RPR ringnet which is compatible with the layer 2 and the layer 3. The on-ring process method comprises that the Ethernet data frames are encapsulated with local mode or remote mode respectively according to whether the source MAC address and the destination MAC address of the Ethernet data frame can be found in the MAC address table of the ring node or in the mapping table of host MAC address and RPR node, and according to whether the destination address of the Ethernet data frame is a unicast address or a non-unicast address. The method for implementing off-ring process includes that the RPR frame is reassembled to the Ethernet data frame according to the forwarding mode of the RPR data frame, and the learning for the correspondence of the source host address and the RPR node address is implemented according to the Flooding flag and the forwarding mode of the RPR data frame. There is also a data forwarding method of RPR dual-adscription network and the network devices implementing the on-ring process and the off-ring process.