A distributed communication device and its message forwarding method and device
A distributed communication and packet forwarding technology, applied in the communication field, can solve the problems affecting the reliability of packet forwarding, the increase of packet forwarding delay, and the congestion of links between boards, so as to avoid the reliability of packet forwarding and reduce the Inter-board link congestion and traffic reduction effect
Active Publication Date: 2020-09-25
XINHUASAN INFORMATION TECH CO LTD
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[0004] However, there is a problem that if the physical port selected by the board from the selected port list is located on another board, the message to be forwarded needs to be sent to the board where the selected physical port is located through the internal inter-board link of the distributed communication device
Since the distributed communication device only sets the selected member port list of each aggregation port in this way, the traffic with different aggregation ports as the outbound ports will generate cross-board forwarding traffic on the distributed communication device, and the The bandwidth of the inter-board link is the priority. In this way, there is a large amount of inter-board traffic in the distributed communication device, which may easily cause the packet forwarding delay increase caused by the inter-board link congestion, and even cause the inter-board link to lose packets. However, it affects the packet forwarding reliability of distributed communication equipment.
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[0027] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.
[0028] The terminology used in this application is for the purpose of describing particular embodiments only, and is not intended to limit the application. As used in this application and the appended claims, the singular forms "a", "" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "an...
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The invention provides a distributed communication device and a message forwarding method and device. The message forwarding method applied to forwarding units of single boards of a distributed communication device comprises the steps of receiving first selected member port lists and second selected member port lists which are synchronized by a CPU of a master control board, from CPUs of the single boards, wherein the first selected member port lists are used for performing local forwarding of aggregation ports, and the priorities of the first selected member port lists are greater than the second selected member port lists which are used for performing global forwarding of the aggregation ports; storing the first selected member port lists and the second selected member port lists to thelocal; receiving data messages; searching that exit ports of forwarding table entries matching destination addresses of the data messages are the aggregation ports; reading the first selected member port lists of the aggregation ports; if the first selected member port lists are not empty, selecting one selected member port to send the data messages; and if the first selected member port lists areempty, selecting the selected member ports of one aggregation port from the second selected member port lists to send to-be-forwarded messages.
Description
technical field [0001] The present application relates to communication technology, in particular to a distributed communication system, in particular to a distributed communication device and its message forwarding method and device. Background technique [0002] A Link Aggregation Group (Link Aggregation Group, LAG) of a communication device is a logical link formed by multiple physical links. A logical port composed of physical ports of all physical links in a link aggregation group is an aggregated port. The physical port of each physical link is an aggregation port and a member port. Each member port can be set to the selected (Selected) state to receive and send packets through the connected link; it can also be set to the unselected (Unselected) state and cannot participate in packet forwarding. The communication device uses the link aggregation group to increase the bandwidth of the message forwarding link, and improves the reliability of the message forwarding lin...
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IPC IPC(8): H04L12/933H04L12/947
Inventor 游君平郑国良
Owner XINHUASAN INFORMATION TECH CO LTD