SDH network planning design method for multi-modularized optical fiber

A technology of network planning and design method, applied in the direction of optical fiber transmission, data switching network, selection device of multiplexing system, etc., can solve problems such as inapplicability to large networks, slow solution speed, etc., to improve utilization and optimize resources Effect

Inactive Publication Date: 2009-04-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This method supports multi-module (OC-N), but the solution speed is slow and not suitable for large networks

Method used

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  • SDH network planning design method for multi-modularized optical fiber
  • SDH network planning design method for multi-modularized optical fiber
  • SDH network planning design method for multi-modularized optical fiber

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Embodiment Construction

[0064] The technical process of the present invention is illustrated below with specific examples, mainly describing the link weight setting, capacity allocation and joint optimization process between multiple modules during service routing, which is the difficulty and complexity of the algorithm. The calculation diagram used in the example is as follows figure 2 As shown, there are 5 vertices and 5 links (two-way links). A batch of existing businesses as shown in Table 1 need to be in figure 2 Configured in the network topology shown, there are three optional fiber levels: STM-4, STM-16, and STM-64, and it is assumed that their costs are Cost 4 =238, Cost 16 =364.8, Cost 64 =860, the unit cost of the cheapest optical fiber is calculated to be γ=238 / 4=59.5. At the same time, in this example, the expansion cost coefficient β=10 is selected, which is an empirical value obtained from this test.

[0065] Table 1 Input business requirements

[0066] Business Numbe...

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Abstract

The present invention pertaining to the computer network communication technology field provides a SDH network planning and designing method of multi-module fibers, concretely relates to the fiber SDH network planning and designing and also relates to resource management and maintenance of the optical SDH network. According to the present invention, the cost of network fiber is made the minimum after the planning and designing under the condition that communication state between nodes, node positions and service requirements are known, and the given modularized fiber type is STM model. The method comprises the steps of service ordering, routing for each service and performing fiber resource configuration from the high service to the low service, and optimizing the fiber module cost to all the links. The present invention realizes that under the condition that the network topology and service requirements are known, whole planning of SDH mesh network with un-given upper limit of link capability is performed, and routing distribution and LSP resources are optimized through the multi-modularized weighting set, resource distribution and multi-modularized fiber cost optimization, under the condition that the network devices and the like are satisfied, finally, the configuration of the network link capability is close to the minimum.

Description

technical field [0001] The invention belongs to the technical field of computer network communication, and specifically relates to the planning and design of an optical fiber SDH network, and at the same time relates to resource management and maintenance of the optical fiber SDH network. Background technique [0002] In today's society, with the development of communication, the information that people require to transmit is not only text, but also data, voice, image and video, etc., which put forward higher requirements for the network. Likewise, people are more highly dependent on various networks. Among various networks, SDH (Synchronous Digital Hierarchy, Synchronous Digital Hierarchy) network has been greatly developed in the field of wide area network and private network. SDH can realize multiple functions such as effective network management, real-time service monitoring, dynamic network maintenance, and intercommunication between different manufacturers' equipment,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04Q11/00H04B10/08H04B10/12H04B10/25H04J3/16
Inventor 虞红芳凌惜沫荣芳
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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