Research on RSVP-TE-based directed flooding IRWA algorithm

Zhao Jijun; Guo Kun; Feng Nan; Zhang Kai

doi:10.13756/j.gtxyj.2013.05.008

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Research on RSVP-TE-based directed flooding IRWA algorithm

- Research on RSVP-TE-based directed flooding IRWA algorithm
- Study on Optical communication Issue 5, Pages: 8-11(2013)
- 作者机构：
  
  河北工程大学信息与电气工程学院
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2013.05.008
  CLC： TN929.1
- Published：2013，
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[1]赵继军,郭昆,冯楠,张凯.基于RSVP-TE的有向泛洪IRWA算法研究[J].光通信研究,2013(05):8-11.

Zhao Jijun, Guo Kun, Feng Nan, et al. Research on RSVP-TE-based directed flooding IRWA algorithm. [J]. (5):8-11(2013)
[1]赵继军,郭昆,冯楠,张凯.基于RSVP-TE的有向泛洪IRWA算法研究[J].光通信研究,2013(05):8-11. DOI： 10.13756/j.gtxyj.2013.05.008.

Zhao Jijun, Guo Kun, Feng Nan, et al. Research on RSVP-TE-based directed flooding IRWA algorithm. [J]. (5):8-11(2013) DOI： 10.13756/j.gtxyj.2013.05.008.

摘要

为了优化透明光网络中IRWA（基于物理损伤模型的路由波长分配）算法性能

通过分析多种物理损伤特点

构建了一种可替代经典模型的简化损伤模型

在此基础上提出一种基于RSVP-TE（资源预留协议-流量工程）的有向泛洪IRWA算法

即KDF-IRWA算法

该算法令源节点通过多条不同的备选路径向目的节点发送PATH（路径）消息包

这些PATH消息包各自独立收集所选路径中各个链路的路径信息

并在目的节点汇聚、计算和比较

避免了经典算法中因首次建路失败而引起的重发包

提高了算法的效率。仿真结果表明

该算法能够有效降低算法时间

提高建路成功的概率

降低网络阻塞率。

Abstract

To optimize the performance of the Routing and Wavelength Assignment（RWA）algorithm based on a physical impairment model for optical（transparent）networks

this paper constructs a simplified impairment model by analyzing the features of multiple physical impairments and proposes a directed flooding RWA algorithm based on Resource Reservation Protocol-Traffic Engineering（RSVP-TE）

i.e.KDF-IRWA algorithm

which allows the source node to send PATH packets to the destination node through multiple candidate paths.These PATH packets independently collect the path information of various links in the selected path

which converge at the destination node and is calculated and compared

thus avoiding packet re-sending arising from the failure in path setup for the first time in the classical algorithms and improving the efficiency of the algorithm.The simulation results indicate that this algorithm can effectively reduce the time

increase the probability of success in path setup and reduce network blocking rate.

关键词

光网络物理损伤路由波长分配算法资源预留协议泛洪路由策略

Keywords

optical networkphysical impairmentRWA algorithmRSVPflooding routing strategy

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