| 优化EPON对本地P2P业务承载能力的研究 |
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| 引用本文： | 肖承伟,王珂,范红.优化EPON对本地P2P业务承载能力的研究[J].南京邮电学院学报(自然科学版),2013(5):39-44. |
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| 作者姓名： | 肖承伟 王珂 范红 |
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| 作者单位： | [1]南京邮电大学光电工程学院,江苏南京210023 [2]南京爱立信熊猫通信有限公司,江苏南京211106 |
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| 摘 要： | P2P流量已成为网络中的主要流量,但现有EPON系统不能很好的承载本地P2P业务.文中从MPCP协议的角度对逻辑链路标签及其过滤规则进行扩展,使本地P2P数据包不需经OLT端二层交换即可实现下行转发,从而大大改善了P2P业务的QoS.并以此方案为基础,提出改进EPON的DBA算法,设置专门的P2P时隙,实现P2P业务的全光域转发.两种方案的建模仿真结果表明,两者均能明显改善EPON对本地P2P业务的承载能力.
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| 关 键 词： | P2P EPON LLID DBA 时延 优化 |
Study on the Local P2P Service-carrying Capacity by Optimizing the EPON |
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| XIAO Cheng-wei,WANG Ke,FAN Hong.Study on the Local P2P Service-carrying Capacity by Optimizing the EPON[J].Journal of Nanjing University of Posts and Telecommunications(Natural Science),2013(5):39-44. |
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| Authors: | XIAO Cheng-wei WANG Ke FAN Hong |
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| Affiliation: | 1.School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China; 2.Nanjing Ericsson Panda Communications Company Ltd., Nanjing 211106, China;) |
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| Abstract: | P2P traffic has become the main traffic in the network.But the existing EPON system can not support the local P2P service efficiently.In this paper we extend the Logical Link Tag and its filtering rules from MPCP protocol to realize the direct downlink forwarding of local P2P packets without the twolayer switching in OLT,which greatly improved the QoS of P2P service.Additionally,based on this solution we propose an improved DBA algorithm for EPON system.It defines a special P2P time slot to realize the P2P service forwarding in all-optical domain.Simulation results show that both of them can significantly improve the carrying capacity of the local P2P service in EPON system. |
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| Keywords: | peer to peer EPON logical link identifiers DBA delay optimization |
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