Method for transmitting sub-loop protocol message in virtual channel
A protocol message and virtual channel technology, applied in transmission systems, digital transmission systems, data exchange through path configuration, etc., can solve the problem of wasting the bandwidth of sub-ring interconnection points, reduce bandwidth consumption, and improve network performance , to reduce the effect of diffusion
Inactive Publication Date: 2010-08-25
ZTE CORP
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[0010] From the above analysis, it can be seen that the transmission mode of the traditional sub-ring protocol message will cause the protocol message to be diffused and transmitted on the virtual channel, which seriously wastes the bandwidth of other rings or networks between the sub-ring interconnection points.
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Embodiment 1
[0043] Embodiment 1, the transmission process of the sub-ring protocol message in the virtual channel in the Ethernet network with too many rings:
[0044] Figure 6 is a schematic diagram of the transmission of too many ring network sub-ring protocol messages in the sub-ring control channel. The control channel of the sub-ring in the figure is implemented by VLAN, but not limited to VLAN. The specific analysis is as follows:
[0045] As shown in FIG. 6, Ring1, Ring2, Ring3 and Ring4 form multiple ring networks. Ring2 is a complete closed loop, including nodes S2, S6, S7 and S3, including links: , , and , control The node (or ring protection link owner) is the S3 node; Ring1 is a sub-ring, which contains nodes S2, S1, S5 and S6, and contains links: , and , the control node is S5 node; Ring3 is a sub-ring, including nodes S3, S4, S8 and S7, including links: , and , the control node is S4 node; Ring4 is a sub-ring, including nodes S5, S9, S10, S11 and S8, including links: , ,...
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The invention discloses a method for transmitting a sub-loop protocol message in a virtual channel, which comprises the following steps of: when a sub-loop interconnection node sends the sub-loop protocol message to a sub-loop virtual channel of the sub-loop interconnection node, searching for a corresponding exit port in a local address forwarding list for sending the sub-loop protocol message and forwarding the sub-loop protocol message from the corresponding exit port; in a process of transmitting the sub-loop protocol message, when other interconnection nodes on the sub-loop virtual channel receive the sub-loop protocol message, searching for the corresponding exit port in the local address forwarding list to forward the sub-loop protocol message from the corresponding exit port; and when a non-interconnection node on the sub-loop virtual channel receives the sub-loop protocol message, forwarding the sub-loop protocol message in a multicast LVAN mode. When the method is used, the sub-loop protocol message can be transmitted on a smooth route in the virtual channel, and thus, the diffusion of the sub-loop protocol message in the virtual channel is greatly reduced, the consumption of sub-loop protocol message in a wideband of other loops or the sub-loops between the interconnection nodes is reduced and the network performance is improved.
Description
technical field [0001] The invention relates to the field of data communication, in particular to a transmission method of a sub-ring protocol message in a virtual channel. Background technique [0002] In the actual application of Ethernet, various protection technologies are widely used to realize the redundant backup between the main path and the backup path. When both the main path and the backup path are intact, the protection data forwarding function of the backup path is blocked, and the protection data between networks is transmitted on the main path; when the primary path fails, the protection data forwarding function of the backup path is enabled, and the network Switch the protection data between them to the backup path for transmission, so as to prevent the protection data from being repeatedly received and form a broadcast storm in the normal state of the network, and enable the backup path to transmit the protection data when the main path of the network fails,...
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IPC IPC(8): H04L12/46H04L12/56H04L29/06H04L45/16
Inventor 王斌吴少勇
Owner ZTE CORP