Ethernet ring protection switching method and system, and node

A technology of Ethernet and environmental protection, applied in the field of communication, can solve problems such as waste of bandwidth resources

Active Publication Date: 2018-07-24
RAISECOM TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] However, in the prior art, since the ring port blocked by the master node is pre-configured or randomly selected in the state of no link failure, and is usually fixed, the

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  • Ethernet ring protection switching method and system, and node
  • Ethernet ring protection switching method and system, and node
  • Ethernet ring protection switching method and system, and node

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[0099] In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other arbitrarily if there is no conflict.

[0100] Such as figure 2 As shown, an Ethernet ring protection switching method according to the present invention, applied to a master node, includes the following steps:

[0101] Step 201: Obtain the farthest node visible to the master node itself;

[0102] It should be noted that the farthest node in the present invention can be calculated by the master node according to the ring topology information recorded locally by the master node itself, or can be designated by the network administrator.

[0103] Exemplarily, as a specific implementation manner, a node in an Ethernet ring may periodical...

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Abstract

The invention discloses an Ethernet ring protection switching method and system, and a node. The method comprises the steps that a master node acquires a farthest node that can be seen by the master node; the master node separately determines a minimum of port rated rates of all nodes in a path from a master port of the master node to the farthest node and a minimum of port rated rates of all nodes in a path from a standby port of the master node to the farthest node; and if the minimum of port rated rates of all nodes in the path from the master port of the master node to the farthest node isless than the minimum of port rated rates of all nodes in the path from the standby port of the master node to the farthest node, the master port and the standby port are reversed. According to the method, whether the master port and the standby port need to be switched can be determined by comparing the minimum of port rated rates of all nodes in the path from the master port of the master nodeto the farthest node with the minimum of port rated rates of all nodes in the path from the standby port of the master node to the farthest node, so that a standby link is switched to a low-bandwidthlink adaptively, and the bandwidth use ratio of the Ethernet right is improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to an Ethernet ring protection switching method, node and system. Background technique [0002] In recent years, in order to ensure fast recovery of service data transmission in the event of a link failure, Ethernet ring technology has been widely used in enterprise LANs, and has also been rapidly developed in operators' metropolitan area networks. As one of the Ethernet ring technologies, the Ethernet ring protection switching protocol can effectively ensure the smooth transmission of ring network service data. By defining the different roles of nodes and links on the ring, the protocol can timely Perform link switching to provide protection for Ethernet services. [0003] In an Ethernet ring, each device on the ring is a node, and the port on the node connected to the ring is called a ring port, and a node on the ring is set as the master node. When the link is not faulty,...

Claims

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Application Information

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IPC IPC(8): H04L12/437H04L12/703H04L12/707H04L45/24H04L45/28
CPCH04L12/437H04L45/22H04L45/28
Inventor 郭亮陈文富
Owner RAISECOM TECH
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