About: I have recently started as CTO of the Connectivity Group at Intel. My main areas of research are Software Defined Networking/Clean Slate Internet Design, Internet Measurement, Peer-to-Peer, and Network Security A lot of the projects I work on end up at OpenFlowHub Previously, I was employed by Deutsche Telekom Labs and was a visiting researcher at Stanford's Clean Slate Lab working on OpenFlow Publications and Talks Current Projects: Open Network Linux: A Linux distribution for bare-metal data center switches Past Projects : FlowVisor: a special purpose OpenFLow controller that allows multiple researchers to safely experiment on production networks OpenFlow Click Element: A OpenFlow-Click hybrid element Enterprise GENI: A virtual network slicing framework and part of GENI's Cluster B oftrace: an OpenFlow analysis and debugging framework OFLOPS: an OpenFlow switch and controller benchmarking suite. TCP Sidecar and DisCarte: two Internet Topology Discovery techniques Slurpie: a Bittorrent-like swarming protocol that works for arbitrary web and ftp files NICE: A P2P system for leveraging coopertative Internet users

Activities and interests from my past lives:

• I used to regulary give a talk on How to Succeed in Graduate School for incoming graduate students that I'm proud of.
• I was the Google Pizza Ambassador for the UMD CS Department for 2 years
• I was on the UMD Graduate Student Government Housing Task Force and received an award for my work.
• I was involved with the IRTF P2P Research Group and ran the corresponding P2PRG Bibliography Project
• I am a strong proponent of Full Disclosure and enjoy this historical quip.
• Nspring's intro writing exercise, that I got tired of losing and refinding, so I'm posting it here

Software that I've written and still find useful

• Cvs "--allow-root-list" patch
• Pam Log service module
• Nload- network load monitor: nload.tgz
• Slurpie: a p2p parallel downloading protocol
• TCP Sidecar: A platform for transparently injecting measurement probes into active TCP connections
  

Publications and Talks

Large Public Talks on OpenFlow

• The Open SDN Stack [pdf]
• OpenFlow: What is it and Where is it going? [ppt] [pdf (kinda broken b/c of animations)]
  Keynote talk at NANOG 53
  Philadelphia, October 11, 2011
• A Crash Course in OpenFlow 1.1 [pdf][ppt]
  Big Switch Internal Tech Talk Series
  August, 2011

Software Defined Networking/Clean Slate Internet Design

• Netcastle: Network Infrastructure Testing At Scale Rob Sherwood, NetDebug.com; Jinghao Shi, Ying Zhang, Neil Spring, Srikanth Sundaresan, Jasmeet Bagga, Prathyusha Peddi, Vineela Kukkadapu, Rashmi Shrivastava, Manikantan KR, Pavan Patil, Srikrishna Gopu, Varun Varadan, Ethan Shi, Hany Morsy, Yuting Bu, Renjie Yang, Rasmus Jönsson, Wei Zhang, Jesus Jussepen Arredondo, and Diana Saha, Meta Platforms Inc.; Sean Choi, Santa Clara University
  USENIX Networked Systems Design and Implementation (NSDI) 2024
• P4Testgen: An Extensible Test Oracle For P4
  Fabian Ruffy, Jed Liu, Prathima Kotikalapudi, Vojtěch Havel, Hanneli Tavante, Rob Sherwood, Vladyslav Dubina, Volodymyr Peschanenko, Anirudh Sivaraman, Nate Foster
  ACM Sigcomm, 2023
• FBOSS: Building Software At Scale
  Sean Choi, Boris Burkov, Alex Eckert, Tian Fang, Saman Kazemkhani, Rob Sherwood, Ying Zang, Hongyi Zeng
  ACM Sigcomm, 2018
• The Controller Placement Problem
  Brandon Heller, Rob Sherwood, Nick McKeown
  ACM Sigcomm HotSDN Workshop, 2012
  
• On Controller Performance in Software-Defined Networks
  Amin Tootoonchian, Sergey Gorbunov, Yashar Ganjali, Martin Casado, Rob Sherwood
  USENIX Workshop on Hot Topics in Management of Internet, Cloud, and Enterprise Networks and Services (Hot-ICE '12)
• Leveraging Zipf's Law for Traffic Offloading.
  Nadi Sarrar, Steve Uhlig, Anja Feldmann, Rob Sherwood, Xin Huang
  ACM SIGCOMM Computer Communications Review (CCR) 2012
  
• OFLOPS: An Open Framework for OpenFlow Switch Evaluation.
  Charalampos Rotsos, Nadi Sarrar, Steve Uhlig, Rob Sherwood, and Andrew W. Moore
  Proceedings of Passive and Active Measurements Conference (PAM '12)
• Safely Using Your Production Network as a Testbed
  Login; Magazine, February 2011, Volume 36, Number 1
  Rob Sherwood
• FIBIUM: Towards Hardware Accelerated Software Routers
  Nadi Sarrar, Anja Feldmann, Steve Uhlig, Rob Sherwood, Xin Huang
  ACM SIGCOMM CoNeXT Student Workshop 2010
  
• Can the Production Network Be the Test-bed?
  Rob Sherwood, Glen Gibb, Kok-Kiong Yap, Guido Appenzeller, Martin Casado, Nick McKeown, Guru Parulkar
  USENIX Symposium on Operating Systems Design and Implementation (OSDI) 2010
  Slides from OSDI talk [odp] [pdf] [ppt]
• An Experimenter's Guide to OpenFlow
  Invited Talk: GENI Experimenter's Workshop
  Princeton, NJ June 2010
  
• Blueprint for Introducing Innovation into Wireless Mobile Networks
  Kok-Kiong Yap, Rob Sherwood, Masayoshi Kobayashi, Te-Yuan Huang,
  Michael Chan, Nikhil Handigol, Nick McKeown, Guru Parulkar
  ACM SIGCOMM Workshop on Virtualized Infrastructure Systems and Architectures (VISA) 2010
• An OpenFlow Switch Element for Click
  Yogesh Mundada, Rob Sherwood, Nick Feamster
  Symposium on Click Modular Router 2009
  Slides from talk in Belgium
• Lossless Handover with n-casting between WiFi-WiMAX on OpenRoads
  Kok-Kiong Yap, Te-Yuan Huang, Masayoshi Kobayashi, Michael Chan,
  Rob Sherwood, Guru Parulkar and Nick McKeown
  ACM MOBICOM 2009 Peer-Reviewed Demo
  Award: Honorable Mention Mobicom 2009
  
• Carving Research Slices Out of Your Production Network with OpenFlow
  Rob Sherwood, Michael Chan,Glen Gibb, Nikhil Handigol,Te-Yuan Huang,
  Peyman Kazemian,Masayoshi Kobayashi, David Underhill, Kok-Kiong Yap, and Nick McKeown
  ACM SIGCOMM 2009 Peer-Reviewed Demo
  Award: Best Demonstration Sigcomm 2009
  
• OpenRoads: Empowering Research in Mobile Networks
  Kok-Kiong Yap, Masayoshi Kobayashi, Rob Sherwood, Nikhil Handigol,
  Te-Yuan Huang, Michael Chan, and Nick McKeown
  ACM SIGCOMM 2009 Peer-Reviewed Poster
  Award: Best Poster Sigcomm 2009
  

Internet Measurement

• Fixing Ally's Growing Pains with Velocity Modeling
  Adam Bender, Rob Sherwood, Neil Spring
  ACM Internet Measurement Conference (IMC) 2008
  
• DisCarte: A Disjunctive Internet Cartographer
  Rob Sherwood, Adam Bender, Neil Spring
  ACM Sigcomm 2008
  Slides from talk
  
• Touring the Internet in a TCP Sidecar
  Rob Sherwood, Neil Spring
  ACM Internet Measurement Conference (IMC) 2006
  Sidecar Project Page
  Sidecar IMC'06 Talk Slides
• A Platform for Unobtrusive Measurements on PlanetLab
  Rob Sherwood, Neil Spring
  USENIX Workshop on Real, Large Distributed Systems (WORLDS) 2006
  Sidecar Project Page
  Sidecar WORLDS'06 Talk Slides

Peer-to-Peer

• Fighting Spam with the NeighborhoodWatch DHT
  Adam Bender, Rob Sherwood, Derek Monner, Nate Goergen, Neil Spring, Bobby Bhattacharjee
  IEEE Infocom 2009
  
• Fair File Swarming with FOX
  Dave Levin, Rob Sherwood, Bobby Bhattacharjee
  International Workshop on Peer-to-Peer Systems (IPTPS) 2006
• Slurpie: A Cooperative Bulk Data Transfer Protocol .
  Rob Sherwood, Ryan Braud, Bobby Bhattacharjee
  IEEE Infocom 2004 Slides from talk [pdf][ps]
• Cooperative Peer Groups in NICE.
  Rob Sherwood, Seungjoon Lee, Bobby Bhattacharjee.
  Journal of Computer Networks (COMNET) Special Issue on Trust and Reputation in Peer-to-Peer Systems, 2005.
  (Revised edition of Cooperative Peer Groups in NICE - IEEE Infocom 2003)

Network Security

• Misbehaving TCP Receivers Can Cause Internet-Wide Congestion Collapse
  Rob Sherwood, Bobby Bhattacharjee, Ryan Braud
  ACM Computer and Communications Security (CCS) 2005
  Slides from CCS05 talk
  Extended version of the paper (CS-TR-4737) [ps][pdf]
  Randomly Skipped Segments Patch for Linux 2.4.24
  CERT Advisory [VU#102014] CVE ID 2005-3675 Bugtraq ID: 15468 ISS X-Force ID: 23055
• P5: A Protocol for Scalable Anonymous Communications.
  Rob Sherwood, Bobby Bhattacharjee, Aravind Srinivasan.
  Journal of Computer Security Vol 13, No. 6 2005, pages 839-876
  (A preliminary version of this paper was published in IEEE Security and Privacy 2002)

Doctoral Disseration

• Discovering and Securing Shared Resources on the Internet
  Rob Sherwood. August 2008.
  University of Maryland, Computer Science Department.