LINK AGGREGATION METHOD AND DEVICE, MAC FRAME RECEIVING/SENDING METHOD AND SYSTEM

摘要

A method and a device of link aggregation and a method and a system for transceiving MAC frames are provided. The method includes: transmitting, by systems at two ends of a link, information of virtual local area networks (VLANs) of a port in a local end system to an opposite end system through message exchange; and determining, by the systems at the two ends of the link, the VLAN of the link respectively according to the received information of the VLAN of the port in the opposite end system and the information of the VLAN of the port in the local end system, and performing link aggregation according to the VLAN of the link. The method for transceiving MAC frames includes: obtaining, by a transmitting end, virtual local area network (VLAN) information of the MAC frames and VLAN information of links in the LAG; selecting, by the transmitting end, a link for sending the MAC frames from links having the same VLAN as the MAC frames, and transmitting the MAC frames to a receiving end through the selected link; and transmitting, by the receiving end, the received MAC frames to an MAC client. Thus, the networking flexibility is improved, the convenience of network design and network maintenance and management is improved, and the MAC frames having VLAN identifiers can be distributed to the corresponding VLAN links rapidly, accurately, and conveniently.