Method for automatically discovering Ethernet ring and generating ring

A technology of automatic discovery and Ethernet ring network, applied in the field of Ethernet ring network, can solve the problems of high requirements for configuration personnel and difficult planning, and achieve the effect of realizing automation and solving the problem of dynamic change of network topology

Inactive Publication Date: 2009-12-23
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technical problem to be solved by the present invention is to solve the problem that in the complex Ethernet-like topology structure, the planning is relatively difficult and the requirements for configuration personnel are high, especially when the network topology changes due to the increase of nodes, the topology needs to be re-planned and configured.

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  • Method for automatically discovering Ethernet ring and generating ring
  • Method for automatically discovering Ethernet ring and generating ring
  • Method for automatically discovering Ethernet ring and generating ring

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Embodiment Construction

[0035] The present invention relates to the related definitions of spanning tree and ring network protocol, and part of the definitions wherein are redefined, as follows:

[0036]Node ID (NodeID): used to identify a node, its structure is priority + node MAC, occupying 8 bytes, of which the priority occupies 2 bytes;

[0037] Port identification (PortID): used to identify the port, its structure is priority + port number, occupying 4 bytes, of which the priority is 2 bytes;

[0038] Port priority vector: quaternion ;

[0039] Reverse root node: the node with the closest distance to the root node;

[0040] Node reverse priority vector: quaternion ;

[0041] Ring: Physically corresponds to a ring-connected Ethernet topology, in which each node has two ports connected to the ring;

[0042] Ring port (Ring Port): The blocking port set according to the spanning tree mechanism. When the ring is working, it is blocked to prevent the occurrence of loops. When the ring is in the pro...

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Abstract

The invention discloses a method for automatically discovering an Ethernet ring and generating a ring as well as a method for implementing automatic protection on the ring based thereof. The method comprises the steps of: voting a network topology root node according to a spanning tree algorithm, transmitting a ring discovering message from a ring port to the outside through the main node of the ring, checking whether the source node of the message is self or not through the node receiving the ring discovering message, if not, then respectively transmitting the message out through every non-blocking port and adding self mark, an inlet port and an outlet port in the message, if so, then checking the integrality of the ring through a polling-based mechanism after the ring discovering is accomplished and combining with the port state monitoring to implement fault detection, and implementing ring protection switching during link fault and resuming when the fault disappears. The method for automatically discovering the Ethernet ring and generating the ring as well as the method for implementing automatic protection on the ring based thereof are based on spanning tree protocol and Ethernet ring protocol, can accomplish automatic ring discovering, collocation and protection on complex network topology, and can solve the dynamic change problem of the network topology, thereby realizing automatic Ethernet ring planning and maintaining, and adapting to the further evolution and development of the Ethernet ring.

Description

technical field [0001] The invention relates to an Ethernet ring network, in particular to a method for automatic discovery and ring generation of the Ethernet ring network. Background technique [0002] The technical terms used in the present invention are as follows: [0003] STP, Spanning Tree Protocol, Spanning Tree Protocol; [0004] RSTP, Rapid Spanning Tree Protocol, Rapid Spanning Tree Protocol; [0005] MSTP, Multiple Spanning Tree Protocol, Multiple Spanning Tree Protocol; [0006] EAPS, Ethernet Automatic Protection Switching, Ethernet automatic protection switching; [0007] RRPP, Rapid Ring Protection Protocol, fast ring network protection protocol; [0008] ZESR, ZTE Ethernet Smart Ring, ZTE Smart Ethernet Ring; [0009] RER, Resilient Ethernet Ring, Resilient Ethernet Ring; [0010] TOK, Tree-spanning is OK, the tree generation process is completed; [0011] Currently, in a two-layer network for data communication, a spanning tree (STP) protocol or a ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/437H04L12/24
Inventor 汪怀坤
Owner FENGHUO COMM SCI & TECH CO LTD
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