A method for transmitting packets in an RPR includes: pre-setting an MAC
table having an item which is a corresponding relationship between the
node MAC address and the UE MAC address of each node; an RPR node
receiving an insert packet, performing the MAC table lookup, deciding
whether an item matching a destination MAC address of the insert packet
exists; if there exists the item, converting the insert packet to an
extended frame-formatted packet where the RPR destination node MAC
address equals to the node MAC address of the item and sending the
converted packet to the destination node, and performing the
corresponding process; if there does not exist the item, converting the
insert packet to an extended frame-formatted packet where the RPR
destination node MAC address equals to a broadcast MAC address,
broadcasting the converted packet on the whole network, and performing
the corresponding process.