Sending and receiving method and system for link aggregation method, device and MAC frame

Abstract

A link aggregation method, device, MAC frame sending and receiving method and system. The link aggregation method includes: the systems at both ends of the link transmit the information of the VLAN to which the port in the local system belongs to the peer system through message interaction; information and the information of the VLAN to which the port of the local system belongs determines the VLAN to which the link belongs, and performs link aggregation according to the VLAN to which the link belongs. The MAC frame transceiving method includes: the sending end obtains the VLAN information of the MAC frame and the VLAN information of the links in the link aggregation group; the sending end selects the link for sending the MAC frame from the links with the same VLAN as the MAC frame, and sends The MAC frame is sent to the receiving end through the selected link; the receiving end sends the received MAC frame to the MAC client. The embodiment of the present invention improves the flexibility of networking and the ease of use of network design, maintenance and management; and the MAC frame with the VLAN ID can be quickly, accurately and conveniently distributed to the corresponding VLAN link.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a link aggregation method and device, a method for transmitting and receiving MAC frames, and a system for transmitting and receiving MAC frames. Background technique [0002] The link aggregation (Link Aggregation) technology is also called link aggregation, or link bundling (LinkBundling), or link aggregation (Trunking). The link aggregation technology is to aggregate multiple independent physical links into one logical link. After link aggregation, only one logical link appears to the upper-layer MAC client. Link aggregation can increase the bandwidth between network elements, and at the same time improve the reliability and elasticity of connections between network elements. [0003] Currently, the implementation process of link aggregation is as follows: [0004] Systems at both ends of the link exchange link aggregation configuration information by exchangi...

AI Technical Summary

Problems solved by technology

If you want to avoid the problem of distributing MAC frames with VLAN IDs to other VLAN links, you need to ensure that the VLAN configurations of the ports of the links participating in the aggregation are the same during link aggregation. However, this will affect the group It increases the flexibility of network applications, and increases the difficulty of network design and network maintenance management, and even requires manual methods to complete link aggregation.

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