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光突发交换网络拥塞控制策略

郭彦涛1,2;文爱军1;刘增基1;何阳1
  

  1. (1. 西安电子科技大学 综合业务网理论及关键技术国家重点实验室,陕西 西安 710071;
    2. 中国电子科技集团公司第54研究所 博士后科研工作站,河北 石家庄 050081)
  • 收稿日期:2007-12-03 修回日期:1900-01-01 出版日期:2009-02-20 发布日期:2009-02-10

Novel congestion control scheme in optical burst switching networks

GUO Yan-tao1,2;WEN Ai-jun1;LIU Zeng-ji1;HE Yang1

  

  1. (1. State Key Lab. of Integrated Service Networks, Xidian Univ., Xi’an 710071, China;
    2. The 54th Research Institute of CETC, Shijiazhuang 050081, China)
  • Received:2007-12-03 Revised:1900-01-01 Online:2009-02-20 Published:2009-02-10

摘要: 针对光突发交换网络中的拥塞问题,提出了一种基于速率的拥塞反馈控制策略.利用控制波长信道,源边缘结点沿数据传送路径周期性地发送和接收资源管理分组,这些控制分组携带数据传送光路所经过的各核心结点的拥塞信息.据此,源边缘结点不断地监测网络的拥塞状况,并相应地调整数据突发的发送速率,从而避免网络拥塞.通过理论分析与系统仿真,从多个方面研究了该策略的控制性能及对光突发交换网络拥塞的影响.结果表明,该策略能有效地抑制光突发交换网络的拥塞发生.

关键词: 光突发交换, 拥塞控制, 反馈策略, 流量控制

Abstract: The paper proposes a novel rate-based congestion control scheme in optical burst switching (OBS) networks. Edge nodes monitor congestion situations by periodically sending and receiving resource management packets (RMP/RMP-ACK), which take the congestion information on core nodes in the OBS network along the light path, and adjust the sending rate of data bursts to avoid network congestion. The performance of the proposed scheme is studied by theoretical analysis and computer simulation. Results show that the RMP scheme can effectively control the OBS network congestion.

Key words: optical burst switching, congestion control, feedback scheme, traffic control

中图分类号: 

  • TN929.11