Method for avoiding congenetic burst service resource collision in automatic switched optical network

An automatic exchange and resource conflict technology, applied in the field of communication, can solve the problems of connection establishment failure and resource conflict, and achieve the effect of improving the success rate, reducing the probability of resource conflict, and avoiding invalid routing calculation.

Inactive Publication Date: 2006-04-26
ZTE CORP
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Conversely, if the time interval between the N+1th connection request and the Nth connection request is less than ΔT, the route calculated by node A for the N+1th connection may use the resources of the Nth connection, so that It may cause resource conflicts and cause connection establishment failure

Method used

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  • Method for avoiding congenetic burst service resource collision in automatic switched optical network
  • Method for avoiding congenetic burst service resource collision in automatic switched optical network
  • Method for avoiding congenetic burst service resource collision in automatic switched optical network

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Embodiment Construction

[0017] The solution of the present invention is: in addition to the topology resource database maintained by the original routing protocol module in the network, a new "connection resource state database" is added. The "connection resource state database" is generated by the source node of the service according to certain rules during the operation of the connection, and it records the changes in the state of network resources caused by the operation of the source node of the service on the connection. In the case of sudden traffic, the "connection resource status database" often contains some current network resource status information that the routing protocol has not had time to spread, so the routing calculation needs to be based on the resource status in the "connection resource status database" Properly adjust the "routing protocol database" maintained by the routing protocol module to obtain the "routing calculation database". The relationship between the three databases...

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Abstract

The invention discloses a method to avoid resource conflict of congenetic burst business in ASON network, which comprises: adding a connection resource state database besides topological resource database maintained by original route protocol, and brining a new resource state as unsettled state and opposite treatment mechanism. This invention perfects current dynamic connection process in ASON, reduces conflict probability, and increases connection success rate.

Description

technical field [0001] The invention relates to a method for avoiding resource conflicts in same-source burst services in an automatic switching optical network, and belongs to the technical field of communication. In particular, it relates to the dynamic routing calculation and connection establishment process in the automatic switching optical network. Background technique [0002] Automatic Switched Optical Network (ASON: Automatic 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] In the ASON network, the connection is usually established according to the process described below: af...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q11/00H04L12/24
Inventor 秦涛
Owner ZTE CORP
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