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Method and device for DCN irregular domain intercommunication in PTN equipment

An irregular and equipment technology, applied in the direction of data exchange, network interconnection, and digital transmission system through path configuration, which can solve the problems of unreachable network and inflexible expansion.

Active Publication Date: 2020-04-28
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a method and device for DCN irregular domain intercommunication in PTN equipment, which solves the problem of inflexible capacity expansion and unreachable network caused by ABR single point failure in the prior art

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  • Method and device for DCN irregular domain intercommunication in PTN equipment
  • Method and device for DCN irregular domain intercommunication in PTN equipment
  • Method and device for DCN irregular domain intercommunication in PTN equipment

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Embodiment Construction

[0039] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0040] The DCN network includes multiple equipment network elements, and divides multiple network elements according to the acceptable network scale. In the invention, the scene of being adjacent to the backbone domain is not described. If a certain area is not adjacent to the backbone domain, according to the OSPF protocol It is stipulated that routes in this area and routes in other areas cannot learn from each other. In order to solve this problem, a bridge domain is added to the OSPF domain. This bridge domain is connected to the backbone domain, and the routing information of irregular domains that are not directly adjacent to the backbone domain is d...

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Abstract

Disclosed in the present invention are a method and an apparatus for communicating with an irregular domain of a DCN in a PTN device. The present invention relates to the technical field of PTN device management and control planes. The method thereof comprises the following steps: during an expansion or when a single node failure of an area border router (ABR) occurs, which causes an irregular domain not adjacent to the backbone domain to appear in a network, regarding the common adjacent domain between the irregular domain and the backbone domain as a default bridging domain; the irregular domain disseminating to the backbone domain, by means of the bridging domain, the routing information of the irregular domain; the backbone domain disseminating to the irregular domain, by means of the bridging domain, the global routing information of the backbone domain. The present invention effectively solves the problem of automatic communication with an irregular domain, and also solves the problem of automatic recovery after the whole domain cannot be reached due to a single point of failure of the ABR, achieving DCN intercommunication between PTN devices.

Description

technical field [0001] The present invention relates to the technical field of PTN (Packet Transport Network, Packet Transport Network) equipment management control plane, in particular to a method and device for intercommunication between DCN (Data Communication Network, data communication network) irregular domains in PTN equipment. Background technique [0002] In the telecommunications network, in order to manage the equipment and network elements scattered in various places, major equipment manufacturers have developed their own DCN. With the continuous expansion of the scale of the telecommunications network, in order to solve the DCN interconnection between devices, routing protocols such as OSPF (OpenShortest Path First, Open Shortest Path First), BGP (Border Gateway Protocol, Border Gateway Protocol) and other routing protocols are introduced to be superimposed on the DCN network. above. Patent CN200510033350.9 proposes to divide the DCN network into multiple domai...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/46H04L12/24
CPCH04L12/46
Inventor 陈炯马西照
Owner ZTE CORP