Multicast frame transmission method under the condition of multi-channel bonding
A transmission method and technology of multicast frames, which are applied in transmission systems, electrical components, data exchange through path configuration, etc., can solve problems such as channel access restrictions and complex implementation of slave nodes, and achieve the goal of reducing waste and realizing efficient transmission. Effect
Active Publication Date: 2022-04-05
XIDIAN UNIV
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Problems solved by technology
However, because this method requires that when a slave node joins a certain multicast group, if the set of channels it accesses does not overlap with the multicast channel binding group corresponding to the multicast group, the central node will notify the slave node to transfer to On the designated channel, it constitutes a great restriction on the channel access of the slave node, and the implementation is too complicated
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[0033] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.
[0034] This embodiment is implemented on a star access network.
[0035] refer to figure 2 , the star access network used in this embodiment is composed of 1 central node and 8 subordinate nodes, there are 8 channels between the central node and the subordinate nodes, and the channel access conditions of each subordinate node are: the first subordinate node A accesses the first channel 1; the second slave node B accesses the third channel 3; the third slave node C simultaneously accesses the first channel 1, the second channel 2, and the third channel 3; the fourth The slave node D simultaneously accesses the fifth channel 5, the sixth channel 6, the seventh channel 7, and the eighth channel 8; the fifth slave node E simultaneously accesses the third channel 3 and the seventh channel 7; The sixth slave node F simultaneously accesses the four...
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The invention discloses a multicast frame transmission method under the condition of multi-channel binding, which mainly solves the problems of low efficiency, serious waste of channel resources and many restrictions on channel access of subordinate nodes in a multicast group in the existing method. Its implementation scheme is: 1) the central node encapsulates the multicast frame and writes the frame sequence number in the frame header; 2) the central node determines the transmission channel set of the multicast frame; 3) the central node copies the multicast frame in multiple copies, The multicast frame is sent on all channels included in the sending channel set; 4) The slave node receives the multicast frame and performs repeated frame filtering according to the frame sequence number. The invention can realize high-efficiency transmission of multicast frames, reduce waste of channel resources, has no restriction on channel access of subordinate nodes in multicast groups, and can be used in access networks adopting star topology.
Description
technical field [0001] The invention belongs to the technical field of communication, and further relates to a multicast frame transmission method, which can be used in an access network adopting a star topology. Background technique [0002] In access networks based on shared media, a star-shaped logical topology consisting of a central node and several subordinate nodes is often used. In this network structure, data communication can be directly performed between the central node and the slave nodes, and the communication between the slave nodes needs to be forwarded by the central node. Usually, the bandwidth requirements of each slave node in the network are different, so multiple narrow-bandwidth channels are set between the central node and each slave node, and each slave node selects several narrow-band channels for access according to its own bandwidth requirements. The central node and the slave node can transmit data on all channels accessed by the slave node at t...
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IPC IPC(8): H04L47/10H04L12/44H04L49/9057
CPCH04L47/15H04L12/44H04L49/9057
Inventor 张冰薛晨岚张奭齐晓鑫
Owner XIDIAN UNIV