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Loop circuit data transmission method and node equipment

A data transmission method and node device technology, applied in the field of loop data transmission method and node device, can solve the problems of poor traffic switching performance, high packet loss rate, and long time consumption

Active Publication Date: 2015-04-29
常州横塘科技产业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The embodiment of the present invention provides a loop data transmission method and a node device, which are used to solve the problem in the prior art that when a link fails, the MAC address table needs to be refreshed, which takes a long time and has a high packet loss rate. Therefore, the technical problem of poor traffic switching performance when the link fails

Method used

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  • Loop circuit data transmission method and node equipment
  • Loop circuit data transmission method and node equipment
  • Loop circuit data transmission method and node equipment

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Experimental program
Comparison scheme
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Embodiment 1

[0061] This embodiment provides a loop data transmission method. In order to illustrate the loop data transmission method in this embodiment more clearly, the loop in this embodiment is first introduced below.

[0062] Please refer to figure 2 As shown, the node devices S1 to S5 are, for example, switches. These node devices are connected in pairs to form a layer 2 ring. In addition, each node device is connected to a terminal respectively. Here, the MAC address is used to represent each terminal, for example figure 1 Terminal MAC-A to terminal MAC-E in . The MAC addresses learned on each node device can be divided into two types, one is that the OIF (outbound interface) of the MAC address is an interface on the second layer ring, and the other is that the OIF outbound interface of the MAC address is a non-ring interface , for example, the outbound interface of the terminal MAC-D learned on the node device S4 is IF-3, which is the interface under the ring, and the outbound i...

Embodiment 2

[0096] This embodiment also provides a node device, which is one of multiple node devices on the ring, such as Figure 5 As shown, the node equipment includes:

[0097] The obtaining unit 301 is used to obtain the data to be transmitted of the node device, and the node device is one of a plurality of node devices on the ring; the judging unit 302 is used to judge the destination media access control layer MAC address of the data to be transmitted on the node device Whether the configured main forwarding interface can send the data to be transmitted; the processing unit 303 is used to send the data to be transmitted from the backup forwarding interface configured for the destination MAC address on the node device when the main forwarding interface cannot send the data to be transmitted, wherein the main The forwarding interface and the backup forwarding interface are ring interfaces of the node device.

[0098] In an embodiment, the judging unit 302 is specifically configured ...

Embodiment 3

[0110] This embodiment also provides a node device, which is one of multiple node devices on the ring, such as Figure 6 Shown is a conceptual diagram of a hardware implementation example of a node device, which includes:

[0111] Interface 401, used to obtain the data to be transmitted of the node device, the interface includes a ring-down interface and a ring-up interface, and the ring-up interface can also be configured as the main forwarding interface and backup of the destination media access control layer MAC address of the data to be transmitted A forwarding interface; a processor 402, configured to determine whether the main forwarding interface can send the data to be transmitted; and when the main forwarding interface cannot send the data to be transmitted, send the data to be transmitted from the backup forwarding interface.

[0112] Among them, in Figure 6 In, bus architecture (represented by bus 403), bus 403 may include any number of interconnected buses and brid...

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Abstract

The invention provides a loop circuit data transmission method and node equipment. The method comprises the following steps: acquiring data to be transmitted of the node equipment, wherein the node equipment is one of a plurality of sets of node equipment on a loop; judging whether a main forwarding interface, which is used for configuring an MAC address of a target media access control layer of the data to be transmitted, on the node equipment can send the data to be transmitted or not; when the main forwarding interface cannot send the data to be transmitted, sending the data to be transmitted by a backup forwarding interface for target MAC address configuration on the node equipment, wherein the main forwarding interface and the backup forwarding interface are loop interfaces of the node equipment.

Description

technical field [0001] The invention relates to the technical field of communications, in particular to a loop data transmission method and node equipment. Background technique [0002] In the Ethernet protocol, a message distribution and replication mechanism is specified called broadcast, also known as "flooding", which solves the problem of initial "mutual recognition" of internal devices in the LAN. However, the broadcast mechanism easily leads to the proliferation and wireless circulation of packets in the loop network, forming a "broadcast storm". "Broadcast storm" has become synonymous with network paralysis and system collapse, and is something everyone tries to avoid. [0003] Therefore, ERPS (Ethernet Ring Protection Switching; Ethernet Ring Protection Switching) technology came into being. It achieves the purpose of eliminating network layer two loops by selectively blocking redundant links of network loops, and effectively prevents the formation of network loops....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L12/437H04L29/12
Inventor 韦乃文
Owner 常州横塘科技产业有限公司