Patent ID: 7715398

Claim:
A method for transmitting a packet in a Resilient Packet Ring (RPR) network, comprising: in each RPR node, pre-setting a relationship between a node MAC address of an RPR node and a User Equipment (UE) MAC address of UE connecting with the RPR node; an RPR node receiving an insert packet and deciding whether the UE MAC address matches a destination MAC address of the insert packet; if the UE MAC address matches the destination MAC address of the insert packet, deciding whether the node MAC address of the current item is the same as the destination node MAC address carried in the insert packet, converting the insert packet to an extended frame-formatted packet in which an RPR destination node MAC address field of the extended frame-formatted packet is set to the node MAC address corresponding to the matching UE MAC address, sending the extended frame-formatted packet to a destination node corresponding to the RPR destination node MAC address field of the extended frame-formatted packet, and the destination node converting the received extended frame-formatted packet to an Ethernet frame-formatted packet and processing the Ethernet frame-formatted packet according to a destination MAC address of the Ethernet frame-formatted packet; and if the UE MAC address does not match the destination MAC address of the insert packet, converting the insert packet to an extended frame-formatted packet in which the RPR destination node MAC address field of the extended frame-formatted packet is set to a broadcast MAC address, broadcasting the converted packet on the whole network, and the node that receives the insert packet, converting the received extended frame-formatted packet to an Ethernet frame-formatted packet and processing the Ethernet frame-formatted packet according to the destination MAC address of the Ethernet frame-formatted packet.