About me

Cheng Li

Email:licheng185408@qq.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 - 2017)
  • B.E. Communication Engineering GPA: 3.5/4 (2010 - 2014)

Publications

• Book: “Refactoring Network: Architecture and Implementation of SDN”, Zewei Yang, Cheng Li
• IETF drafts: SRv6/SR-MPLS, PCEP/PCECC, BGP, IGP, MPLS, SFC, IOAM, OAM
• IETF 103 T-shirt: T-shirt Designs

Work

• Huawei IP Technology Research Department —— IP Tech Research and Standards (2017.5 - present)
  • SRv6/SR-MPLS OAM: Path Segment, OAM, Light IOAM...
  • SFC: SR based SFC, NSH based SFC...
  • PCEP: Extensions of SRv6, Path Segment, Binding Segment, Path MTU...

Internship

• Chief Technology and Architecture Office of CISCO——OSDNA (2016.8 - 2017.5)

  • 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）

  • Complete the 16th chapter "Development of Micro-Controller:Miracle" of 《SDN Core Principles and Application Pratice》
  • Complete an outstanding dissertation for bachelor's degree:"Research of SDN controller and Development of Micro-Controller"(TOP1%)
  • Study and Research OpenDayLight

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 Pronunciation 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), Golang(3 months)
• System: Linux (Familiar with Ubuntu), Mac OS
• 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@qq.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（2014.9~2017.3）

  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》——杨泽卫、李呈
• IETF drafts: SRv6/SR-MPLS, PCEP/PCECC, BGP, IGP, MPLS, SFC, IOAM, OAM
• IETF 103 T-shirt: T-shirt Designs

工作

• 华为IP技术研究部——IP技术研究与标准化 (2017.5 - present)
  • SRv6/SR-MPLS OAM: Path Segment, OAM, Light IOAM...
  • SFC: SR based SFC, NSH based SFC...
  • PCEP: Extensions of SRv6, Path Segment, Binding Segment, Path MTU...

实习经历

• Cisco美国总部·Chief Technology and Architecture Office ——OSDNA (2016.8 - 2017.5)

  • 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网络兼容的控制器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）

  • 完成SDN书籍《软件定义网络核心原理与应用实践》第16章“微控制器Miracle开发实践”
  • 完成毕业设计《SDN控制器研究与微控制器开发》,并获得北京邮电大学优秀毕业论文（TOP1%)
  • OpenDayLight学习与研究

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 Agent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(80%),Java(10%), Golang(10%)
• 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