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Ethernet ring network failure recovery method, Ethernet ring network and switching equipment

A technology for switching equipment and fault recovery, which is applied in the field of network communication and can solve problems such as communication interruption

Inactive Publication Date: 2011-01-26
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The embodiment of the present invention provides a method for recovering from a failure of an Ethernet ring network, an Ethernet ring network and a switching device, so as to solve the problem of communication interruption during recovery of an Ethernet ring network failure in the prior art

Method used

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  • Ethernet ring network failure recovery method, Ethernet ring network and switching equipment
  • Ethernet ring network failure recovery method, Ethernet ring network and switching equipment
  • Ethernet ring network failure recovery method, Ethernet ring network and switching equipment

Examples

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Embodiment 1

[0049] Embodiment 1 of the present invention provides a recovery method for an Ethernet ring network fault, which solves the problems in the prior art caused by switching of blocked ports by configuring a non-switching mechanism on switching devices (including the main switching device and the transmission switching device). communication interruption problem. The flow process of the inventive method is as Figure 8 As shown, the execution steps are as follows:

[0050] Step S101: The main switching device sends a detection message of port identification information to the transmission switching device in the Ethernet ring network through its own main port.

[0051] Generally, the master switching device sends detection messages to the switching devices in the Ethernet ring network at a set period. Wherein, the port identification information carried in the detection message indicates that there is no blocked port.

[0052] Preferably, the detection message also carries rin...

Embodiment 2

[0087] The Ethernet ring network fault recovery method provided by Embodiment 2 of the present invention adopts a non-switching mode for processing when a link between two switching devices fails. Wherein, if the carried port flag information is empty, it means that there is no blocked port in the Ethernet ring network; if the carried flag information is set, it means that there is a blocked port in the Ethernet ring network; if the carried ring state information is empty, it means that the Ethernet ring network It is in an unknown state, and the flag information carried is set to indicate that the Ethernet ring network is in a normal state as an example for illustration. And in this embodiment, the transmission switching device is specifically a transmission switch, and the main switching device is specifically a main switch.

[0088] When the Ethernet ring is in figure 2 In the initial state shown, the slave port of the master switch is blocked, and the master switch sends...

Embodiment 3

[0101] The ring network fault recovery method provided by Embodiment 3 of the present invention is applicable to the situation when two or more links in the Ethernet ring network fail simultaneously, and the Ethernet ring network exemplified in Embodiment 2 is still used. Take the link between transit switches C and D and between transit switches B and C as an example.

[0102] When the links between transit switches C and D, and between transit switches B and C fail, their statuses are as follows: Figure 11 As shown, the transmission switches B and D both send down messages to the live switch, and the master switch records the status of the ring network as a failure state, and opens its own blocked slave port.

[0103] When the link between transit switches C and D, transit switches B and C recovers from the fault, transit switches B and C, transit switches C and D block their own ports connected to the faulty link, and their states are as follows Figure 12shown. And when...

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Abstract

The invention discloses an Ethernet ring network failure recovery method, an Ethernet ring network and switching equipment. The method comprises the following steps that: main switching equipment sends a detection message carrying port mark information to transmission switching equipment in the ring network; after receiving the detection message, the transmission switching equipment, if port blockage exists in the transmission switching equipment, restores the blocked port thereof to a normal state when the port mark information in the transmission switching equipment indicates that the port blockage exists; when the port mark information in the transmission switching equipment indicates that the port blockage does not exist, the transmission switching equipment keeps one port in the blockage state, restores other ports to the normal state, and modifies the port mark information to indicate that the port blockage exists; the transmission switching equipment forwards the detection message to adjacent transmission switching equipment or main switching equipment; and after receiving the detection message from the port, the main switching equipment restores the port thereof in the blockage state to the normal state if the port mark information in the main switching equipment indicates that the port blockage exists. The method avoids communication interrupt caused by switching of blocked ports in the prior art.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to an Ethernet ring network failure recovery method, the Ethernet ring network and switching equipment. Background technique [0002] With the rapid development of Ethernet technology and the continuous improvement of applications, it has become an irresistible trend to use cost-effective Ethernet technology to build large-scale enterprise networks and metropolitan area networks. Ethernet is generally deployed as a ring topology network structure, such as figure 1 As shown, each device (including device A, device B, device C, and device D) uses two ports to interconnect with adjacent devices on both sides respectively, forming a ring topology network including a closed link. [0003] A ring topology network constructed using Ethernet switches is called an Ethernet ring network. RFC3619 is called the Ethernet Automatic Protection Switching (Ethernet Automatic Protecti...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L12/26H04L12/42H04L12/937
Inventor 缪仕福
Owner RUIJIE NETWORKS CO LTD
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