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Cheng Li

Email:licheng185408@gmail.com

Github:https://github.com/muzixing

Homepage:www.muzixing.com

Education background

  • Beijing University of Posts and Telecommunications(BUPT)
    • M.E. Software Defined Networking (2014 - Present)
    • B.E. Communication Engineering GPA: 3.5/4 (2010 - 2014)

Publish

  • Book: “Refactoring Network: Architecture and Implementation of SDN”, Cheng Li, Zewei Yang (On typesetting)
  • Paper: “OXP: An Efficient Protocol for Scaling SDN-based Ad Hoc Network” (Accepted by IJRA, SCI)
  • Patent: “A control system, method and apparatus for SDN ” ( CN105245593A)

Internship

  • Chief Technology and Architecture Office of CISCO——OSDNA (2016.8 - Present)

    • Scan physical and virtual network elements in OpenStack environment including host, OVS and VM.
    • Store network topology data into MongoDB for visualizing and Troubleshooting.

  • China Academy of Telecommunication Research of MIIT(CATR)——OTN extension of OpenFlow1.0，Load Balancing Application. (2013.7 - 2014.1)

    • Complete encapsulation of OpenFlow1.0 data structure, and add OTN extended bytes
    • Develop an original Controller Miracle which supports IP and OTN
    • Achieve load balance between IP network and OTN on testbed built by Miracle, Mininet, and Sprient Testcenter

  • China Future Network Valley•Future Networks Innovation Institute —— Research of SDN Controller（2014.3 - 2014-9）

Project Experience

  • Design and Implement Open eXchange Protocol of SDN Controller(2015.3 - 2015.9)

    • Study scalability proposes of SDN control plane, and propose Open eXchange Protocol
    • Design the Open eXchange Protocol, and implement it on SDN controller: Ryu
    • Based on the coordination of multiple controllers, achieve the shortest forwarding cross multi-domains

  • Load Balancing on Fattree Topology Based on OpenFlow(2015.1 - 2015.2)

    • Implement two extension functions of traffic design: Random and Probability Stride
    • Implement load balance application based on DLB(Dynamic Load Balancing) algorithm in Fattree topology
    • Evaluate the average bandwidth ratio of different algorithms

  • Load Balance Based on Multipath(2014.9 - 2014.10)

    • Implement ARP proxy to avoid storm
    • Implement QoS via queue to provide customized service
    • Achieve load balancing application based on multipath by select group table

  • HTTP Acceleration Application Based on VLAN(2013.3 - 2013.5)

    • Build the test platform by RYU/POX + OpenvSwitch + Nginx to accelerate the speed of HTTP traffic
    • Achieve the customized service provider, and support switching of VLAN

Awards

  • “Winning Prize” of National University Software Defined Networking Competition (2015)
  • "Honorable Mention" of ICM ( The Interdisciplinary Contest in Modeling)of American university students(2013)
  • "Outstanding dissertation for bachelor's degree" of BUPT:"Research of SDN controller and Development of Micro-Controller"(TOP1%)
  • "The Second Prize" of "Challenge Cup" Capital university student extracurricular academic science and technology work competition
  • "The Second Prize in final" & "The Best Pronounciation Award" of 2012 CCTV “Star of Outlook English talent competition”（Drama）of Beijing
  • "The Second university scholarship" of BUPT for three times.(Top:47/593/7.9%)
  • "Excellent manager" & "Outstanding volunteer" of "Hainan “Beautiful Minds” college students volunteer teachers association.(www.meizaixinling.com)

Skills

  • Familiar with TCP/IP, OpenFlow (3 years), SDN (3 years), Docker (2 months)
  • Programming language: Python (3 years), Java (6 months)
  • System: Linux (Familiar with Ubuntu)
  • Languages:
    • Major: Chinese
    • Second: English (CET-6)

Additional Skills

  • Leadership

    • Hainan “Beautiful Minds” college students volunteer teachers association（2011-2013）

      • Founder and minister of ISG (Issue Service Group), minister of Public Relations and the minister of Research center.
      • Leader of “CHENGMAI” detachment for an year, and organized the flowing activities:
        • Volunteer teaching in summer.
        • Share meeting of College entrance examination in winter.
        • Book donation

    • Minister of Public Relations of “Student Association Union of BUPT ” (2011)

    • Outstanding volunteer of Baidu Technology Innovation Conference(2013) Leader of photography group(2013)

  • Teamwork

    • BUPT Baidu club member. BUPT IEEE official club member.（2012-2013）
    • Volunteer of the first IWS(International Wireless Symposium )，and responsible for the booth of BUPT(2013)

Hobbies

  • Programming
  • Improvisational theater
  • Basketball
  • Photography

李呈

北京邮电大学•信息与通信工程学院•通信工程

Email:licheng185408@gmail.com

Github:https://github.com/muzixing

Homepage:www.muzixing.com

教育经历

  • 大学本科 （2010.9~2014.6）& 硕士研究生（2014.9至今）

    北京邮电大学 信息与通信工程学院 通信工程

发表作品

  • 书籍：《重构网络：SDN架构与实现》——李呈、杨泽卫（出版社编辑定稿过程中）
  • 论文：OXP: An Efficient Protocol for Scaling SDN-based Ad Hoc Network--IJRA（SCI检索，已录用）
  • 专利：一种软件定义网络SDN的控制系统、方法及装置（CN 105245593 A）

实习经历

  • Cisco美国总部·Chief Technology and Architecture Office ——OSDNA (2016.8 - 至今)

    • 探测发现OpenStack中虚拟网络的拓扑等信息，实现网络信息可视化
    • 基于网络信息，对网络信息进行分析，提供OpenStack网络保障方案

  • 工信部•电信研究院•通信标准所 ——OpenFlow的OTN扩展，负载均衡应用 (2013.7 - 2014.1)

    • 完成Openflow1.0所有报文静态库封装，添加OTN扩展字段
    • 原创开发实现OTN与IP网络兼容的Miracle
    • 搭建Miracle+Mininet+Sprient Testcenter实验测试平台，测试并验证新协议的可行性
    • 实现流量在IP网与OTN之间的负载均衡应用

  • 中国无线谷（未来网络谷） ————控制器相关学习与研究（2014.3 - 2014-9）

项目经历

  • SDN控制器协同合作接口协议OXP的设计与实现(2015.3 - 2015.9)

    • 调研现有控制平面可拓展性实现方案，提出Open eXchange Protocol(OXP)
    • 设计OXP协议， 并基于Ryu控制器和ONOS实现OXP协议栈
    • 完成基于OXP协议的分级分域多控制协同工作，实现跨域最优路径转发演示应用

  • 基于OpenFlow的负载均衡算法(2015.1 - 2015.2)

    • 搭建Fattree拓扑，在Mininet中拓展两种流量测试模型：随机模型、概率模型
    • 实现DLB(Dynamic Load Balancing)算法，并完成基于该算法的负载均衡应用
    • 对比评价不同算法下的网络带宽利用率

  • 基于Group Table实现负载均衡(2014.9 - 2014.10)

    • 部署ARP代理回复ARP请求，并解除环路ARP广播风暴
    • 使用队列实现带宽QoS，根据策略提供差异化网络业务
    • 基于select类型group table完成多径传输，实现流量负载均衡

  • 面向用户的差异化HTTP流量加速服务(2013.3 - 2013.5)

    • 使用RYU/POX+Openvswitch+Nginx，搭建SDN(Software Defined Network)实验环境，现实HTTP流量引导
    • 实现不同优先级业务区别对待，vlan切换等功能

所获奖项

  • 美国大学生数学建模竞赛ICM ( The Interdisciplinary Contest in Modeling ) Honorable Mention(二等奖) (2013)
  • “挑战杯”学术科技类•全国二等奖(2013)
  • 2012年度CCTV“希望之星”英语风采大赛（话剧类）北京赛区•总决赛二等奖第一名，最佳语言奖
  • 连续三年获得北京邮电大学•校级奖学金二等奖（三年综合: 47/593），保送工学研究生
  • 海南省“美在心灵”大学生支教志愿者协会（支教项目荣获第八届（2010）中国青年志愿者优秀项目奖）优秀管理者，优秀志愿者，香港交流志愿者(2011-2012)

个人技能

  • 编程语言：Python(90%),Java(5%)，C/C++(5%)
  • 熟悉TCP/IP, OpenFlow协议，网络与交换理论知识扎实
  • 熟悉操作系统运行过程，熟悉Linux系统
  • CET-6，英文文档阅读能力和演讲能力良好,口语流畅

社会实践

  • 作为自由开发者承接多项SDN开发业务，并开设SDN初级入门疑难解答课程；作为自由供稿者向SDNLAB等门户网站提供技术文章
  • 海南省“美在心灵”大学生支教志愿者协会（2011-2013）
    • ISG(Issue Service Group)小组创始人兼部长，研究中心负责人
    • 公关部部长，完成官方论坛的设计与改版
    • 澄迈分队辅导员，香港交流志愿者，分队队长，获优秀管理志愿者称号，组织了以下活动：
      • 暑假支教
      • 寒假高中交流
      • 街头捐书等活动
  • 北京邮电大学•百度俱乐部技术部成员。北京邮电大学•IEEE协会技术部成员（2012-2013）
  • 北京邮电大学•社团联合会公关部部长，负责赞助合作，培养干事(2011)

兴趣爱好

编程、即兴表演、篮球、摄影、跳舞

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