Method for maintaining and controlling plane attainable information in automatic exchanging optical network

A technology of maintenance control and automatic exchange, applied in the direction of data exchange, electrical components, transmission systems, etc. through path configuration, to achieve the effect of avoiding routing calculation errors

Inactive Publication Date: 2006-11-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The technical problem to be solved by the present invention is to propose a method for maintaining the reachability information of the control plane in the ASON network, and to solve the problem of invalid routing calculation results caused by the failure of the control node or the control channel in the current general ASON architecture question

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  • Method for maintaining and controlling plane attainable information in automatic exchanging optical network
  • Method for maintaining and controlling plane attainable information in automatic exchanging optical network
  • Method for maintaining and controlling plane attainable information in automatic exchanging optical network

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Embodiment Construction

[0022] Before describing the implementation, first define some terms used in this article:

[0023] Reachable: If two control nodes can correctly transmit control information through the signaling network, the two nodes are said to be reachable to each other. The reachability between nodes is transitive, that is, if A to B is reachable, and B to C is reachable, then A to C must be reachable.

[0024] Adjacency relationship: If two adjacent control nodes can exchange information correctly through the signaling network, the two nodes are said to be adjacent to each other, and an adjacency relationship has been established between them. A node may establish adjacencies with zero, one or more nodes. Obviously, two nodes that have established an immediate relationship must be reachable to each other.

[0025] Adjacent node list: For a certain control node, its adjacency node list records the collection of nodes that have established an adjacency relationship with this node.

[0...

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Abstract

The present invention provides maintenance control plane accessibility information method in automatic exchange optical network. It contains in current structure basic, increasing one control plane accessibility information data base and one adjacency relation detect subfunction module to each node route control module; using adjacency relation detect subfunction module real time detecting local node and adjacent nodes adjacency relation variation; and in detecting variation generation, updating adjacency relation list in local adjacency relational data base, diffusing transmitting changed Adjacency node listing, realizing all control node Adjacency relational data base updating; synchronizing Adjacency relational data base and recalculating accessibility relation between node according to updated Adjacency relational data base, using calculative result as route querying constraint condition. The present invention can avoid route miscount duo to control node or control channel gone wrong, raising connection establishment success ratio and shortening connection establishment time.

Description

Technical field: [0001] The present invention relates to an Automatic Switched Optical Network (ASON: Automatic Switched Optical Network) in the field of communication technology, in particular to routing information diffusion and dynamic routing calculation therein. Background technique: [0002] Automatically switched optical network is a new technology developed on the basis of traditional optical transport network. Without human management and control, ASON network can operate a series of protocol mechanisms such as routing, signaling, and automatic discovery, and establish optical channels that meet user needs according to user requests. This unprecedented revolutionary progress has brought a qualitative leap to the optical network. [0003] There are three planes in the ASON network architecture, which are the transmission plane, control plane and management plane. The transmission plane is composed of a series of transmission entities, which provide the actual physi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/28H04L45/16
Inventor 秦涛
Owner ZTE CORP
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