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Address refreshing method of sub-loop virtual channel

A virtual channel and address technology, applied in the field of data communication, to improve network performance and reduce proliferation

Active Publication Date: 2010-08-25
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These FLUSH messages spread on the virtual channel, refreshing the address forwarding tables of all nodes on the virtual channel, which will cause an instant broadcast storm on the virtual channel

Method used

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  • Address refreshing method of sub-loop virtual channel
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  • Address refreshing method of sub-loop virtual channel

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0057] Embodiment 1, the address refresh process of the sub-ring protocol message in the virtual channel in the network with too many rings:

[0058] Figure 7 is a schematic diagram of the transmission of too many ring network sub-ring protocol messages in the sub-ring control channel. The sub-ring control channel in the figure is implemented by VLAN, but not limited to VLAN. The specific analysis is as follows:

[0059] As shown in FIG. 7, 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; Ring 3 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, which includes nodes S5, S9, S10, S11 and S8, and includes links: , , an...

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PUM

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Abstract

The invention discloses an address refreshing method for a sub-loop virtual channel, which comprises the following steps of: when a sub-loop interconnection node collects an SF message carrying address refreshing information from a control VLAN of a sub-loop of the sub-loop interconnection node, refreshing a local address forwarding list according to the SF message and constructing an FLUSH message, searching the corresponding exit port in the local address forwarding list and forwarding the FLUSH message to the virtual channel of the sub-loop from the corresponding exit port; when other interconnection nodes on the virtual channel receive the FLUSH message, searching the corresponding exit port, forwarding the FLUSH message from the corresponding exit port and then updating the local address forwarding list according to the LFUSH message; and when non-interconnection nodes of the virtual channel of the sub-loop receive the FLUSH message, forwarding the FLUSH message in a multicast VLAN mode and updating the local address forwarding list according to the FLUSH message. When the method is used, the diffusion of the LFUSH message on the virtual channel can be greatly reduced and the addresses of all the nodes on the virtual channel avoid being refreshed.

Description

technical field [0001] The present invention relates to the field of data communication, and more particularly relates to an address refresh method of a sub-ring 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L45/74
Inventor 王斌吴少勇
Owner ZTE CORP