Yearly Archive

2023 (114)

December 8 Weekend Reads 120923
December 8 Hedge 205: OId Engineering Quotes
December 4 Upcoming Pearson Class: Modern Network Troubleshooting
December 2 Weekend Reads 120223
December 1 Hedge 204: Terry Slattery on Network Automation
November 19 Weekend Reads 111923
November 16 Hedge 203: Terry Slattery on Network Automation
November 10 Hedge 202: Internet Governance with George Michaelson
November 3 On the ‘net: Two on AI
November 3 On the ‘net: Model Based Thinking
November 3 Weekend Reads 110323
November 2 Hedge 201: Roundtable
October 28 Weekend Reads 102723
October 27 Hedge 200: Automation with Ethan Banks
October 20 Hedge 199: Automation with Carl Buchmann
October 20 Weekend Reads 102023
October 19 Upcoming Class: How the Internet Really Works
October 14 Controversial Reads 101423
October 14 Weekend Reads 101323
October 13 Hedge 198: Nephio with Wim Henderickx
October 7 On the ‘net: Building Consensus in the IETF
October 7 On the ‘net: Mediocrates and LLMs
October 7 Weekend Reads 100323
October 5 Hedge 197: Old Engineering Books (1)
September 30 Weekend Reads 092923
September 29 Hedge 196: What’s up with Ethernet? (with Peter Jones)
September 21 Hedge 195: DDoS Inflection with Barry Greene
September 19 Simple or Complex?
September 17 On the ‘net: Network Models at Packet Pushers
September 17 On the ‘Net: The IETF at Packet Pushers
September 15 Weekend Reads 091523
September 14 Upcoming Training: How Routers Really Work
September 7 Hedge 194: Network Automation with the Network Automation Forum
September 1 Weekend Reads 090123
September 1 Hedge 193: Network Automation with the Network Automation Forum
August 26 Weekend Reads 082623
August 24 Hedge 192: Addiction Recovery
August 18 Weekend Reads 081823
August 18 Hedge 191: Power in the Data Center with Sarah Martin
August 10 Hedge 190: Sunspots
August 4 Hedge 189: Data Center Careers with Carrie Goetz
July 29 Weekend Reads 072823
July 28 Hedge 188: Sidewalk, Who’s Responsible?, and Data Breaches
July 21 Hedge 187: Buffer Bloat with Bjørn T
July 17 Upcoming BGP Policy Course
July 15 Controversial Reads 071423
July 15 Weekend Reads 071423
July 13 Hedge 186: Hardware Root of Trust
July 7 Weekend Reads 070723
July 6 Hedge 185: Retrocomputing
June 30 Weekend Reads 063023
June 30 Hedge 184: Open Source Value, Fake Agile, Cloud & Skills
June 27 Upcoming Training: BGP Policy
June 24 Weekend Reads 062323
June 23 Hedge 183: Mike Bushong on Operational Excellence
June 17 Controversial Reads 061723
June 16 Weekend Reads 061623
June 16 Hedge 182: The Decentralized Internet Infrastructure Research Group
June 11 Weekend Reads 060923
June 5 Updated Public Domain Network Icons
June 3 Weekend Reads 060223
June 1 Hedge 181: Roundtable
May 27 Controversial Reads 052723
May 27 Weekend Reads 052623
May 25 Hedge 180: Network Operations Survey with Josh S
May 19 Weekend Reads 051923
May 18 Hedge 179: The State and Future of SONiC with Michael V Dvorkin
May 12 Hedge 178: Defined Trust Transport with Kathleen Nichols
May 12 Weekend Reads 051223
May 6 Weekend Reads 050523
May 5 Hedge 177: Mike Dvorkin and the Cloud
April 29 Weekend Reads 042823
April 28 Hedge 176: OpenAI, ChatGPT, and the Cost of a Data Center
April 22 Controversial Reads 042223
April 22 Weekend Reads 042123
April 20 Hedge 175: Mike B on Personal Superpowers
April 14 On the ‘net: The CCIE Shuffle Podcast
April 14 On the ‘net: Privacy and IPv6 Renumbering
April 14 Hedge 174: Javier Antich and Cloud AI
April 14 Weekend Reads 041423
April 8 Weekend Reads 040723
April 6 Hedge 173: If Multicast is the answer, what was the question?
April 2 Controversial Reads 040123
April 2 Weekend Reads 033123
March 29 Hedge 172: Roundtable! SONiC, Open Source, and Complexity
March 24 Hedge 171: Paul Grubb on Zero Knowledge Middleboxes
March 18 Weekend Reads 031723
March 16 Hedge 170: AI in the Real World with Jonathan Bartlett
March 12 Upcoming Training: How the Internet Really Works Part 1
March 12 Weekend Reads 031123
March 9 Hedge 169: Network Address Translation with Steinn
March 4 Controversial Reads 030423
March 3 Weekend Reads 030323
March 1 Hedge 168: Roundtable
February 25 Weekend Reads 022423
February 22 Hedge 167: Oblivious DoH with Chris Wood
February 22 Chatbot Attack Vectors
February 18 Weekend Reads 021723
February 17 Hedge 166: Christopher Wood and masque
February 14 Upcoming Course: How Routers Really Work
February 11 Weekend Reads 021023
February 9 Hedge 165: Low Earth Orbit with Dan York
February 4 Weekend Reads 020323
February 3 Hedge 164: Threat Modeling with Chris Romeo
January 28 Weekend Reads 012723
January 26 Hedge 163: Netops, Mapping, and Working Hard
January 21 Controversial Reads 012023
January 21 Weekend Reads 012023
January 19 Hedge 162: Geoff Huston and Going Dark
January 16 Infrastructure Privacy Live Webinar
January 13 Weekend Reads 011323
January 12 Hedge 161: Going Dark with Geoff Huston
January 6 Weekend Reads 010623
January 4 Hedge 160: Avishai Ish-Shalom and Jurassic Cloud

2022 (145)

December 31 2022 Working Environment
December 28 Hedge 159: Roundtable on SONiC, Antipatterns, and Resilience through Acquisition
December 16 Weekend Reads 121622
December 15 Hedge 158: The State of DDoS with Roland Dobbins
December 10 Controversial Reads 121022
December 10 Weekend Reads 120922
December 8 Hedge 157: Vendor Lock-in with Frank Seesink
December 5 Hedge December 22 Update
December 2 Weekend Reads 120222
December 1 Hedge 156: Functional Separation in Network Design with Kevin Myers
November 19 Controversial Reads 111922
November 19 Weekend Reads 111822
November 16 The Hedge 155: DNS Deployment in Real Life with Andreas Taudte
November 14 Mean Time to Innocence is not Enough
November 12 Weekend Reads 111122
November 9 Hedge 154: Path Aware Networking Research Group
November 5 Hedge November Update
November 5 Weekend Reads 110422
November 2 Hedge 153: Security Perceptions and Multicloud Roundtable
October 29 Weekend Reads 102822
October 27 Hedge 152: Joel King on the network and DevOps
October 24 On the ‘net: Privacy and Networking
October 23 Controversial Reads 102222
October 23 Weekend Reads 102122
October 20 Hedge 151: Cecilia Testart and the Value of the RPKI
October 14 Weekend Reads 101422
October 12 Hedge 150: Micah Beck and Universal Broadband
October 9 Hedge: October Update
October 9 Weekend Reads 100722
October 6 Hedge 149: Roundtable
October 2 Weekend Reads 093022
September 23 Weekend Reads 092322
September 22 Hedge 148: The SRE with Niall Murphy (part 2)
September 18 Weekend Reads 091622
September 14 Hedge 147: The SRE with Niall Murphy (part 1)
September 12 On the Web: Privacy and Logging
September 10 Controversial Reads 091022
September 9 Weekend Reads 090922
September 8 Upcoming Live Training: Data Center Fabrics
September 8 Hedge September 2022 Update
September 8 Hedge 146: Leslie Daigle and Unwanted Traffic in the DFZ
September 3 Weekend Reads 090222
September 1 Hedge 145: Roundtable on Professional Liability
August 26 Weekend Reads 082522
August 25 Hedge 144: IPv6 Lessons Learned
August 19 Weekend Reads 081922
August 18 Hedge 143: Being Prepared to be Laid Off with Giovanni Messina
August 16 Route Servers and Loops
August 15 BGP Peering (2)
August 12 Weekend Reads 081222
August 10 Hedge 142: George Michaelson and the Pace of IPv6 Deployment
August 8 RFC9199: Lessons in Large-scale Service Deployment
August 5 Weekend Reads 080422
August 3 Hedge 141: Improving WAN Router Performance
August 2 BGP Peering (part 1)
August 2 Hedge August Update
August 1 Learning to Ride
July 30 Controversial Reads 073022
July 30 Weekend Reads 072922
July 28 Hedge 140: Aftab S and RIR Policies
July 22 Weekend Reads 072222
July 20 Hedge 139: Open Source Supply Chain Security
July 15 Weekend Reads 071522
July 13 Hedge 138: The Robustness Principle
July 11 Privacy for Providers
July 8 Weekend Reads 070822
July 6 Hedge 137: Old FRR Defects
July 2 Weekend Reads 070122
June 29 Hedge 136: The IPv6 ULA Mess
June 25 Controversial Reads 062522
June 24 Weekend Reads 062422
June 22 Hedge 135: Simon Sharwood, China, and IPv6
June 21 BGP Intra-AS and Route Reflection
June 20 How the Internet Really Works
June 17 Weekend Reads 061622
June 15 Hedge 134: Ten Things
June 13 On Building a Personal Brand
June 11 Controversial Reads 061122
June 10 Weekend Reads 061022
June 8 Hedge 133: Brooks Westfield and Multifactor Testing
June 6 Revisiting BGP Convergence
June 3 Weekend Reads 060322
June 2 Hedge 132: DNS Complexity and the DNAME
May 31 How BGP Really Converges
May 27 Weekend Reads 052722
May 25 Hedge 131: Easier for the Computer or the Person?
May 20 Weekend Reads 052022
May 18 Hedge 130: The Importance of Network Inventories
May 16 OT’N: BGP Loop Free Paths
May 14 Weekend Reads 051322
May 11 Hedge 129: Open Source Mentoring
May 9 BGP Policy (Part 7)
May 7 Controversial Reads 050722
May 6 Weekend Reads 050622
May 5 Hedge May Update
May 5 Live Training: How Routers Really Work
May 5 Hedge 128: Network Engineering at College
May 3 BGP Policy (Part 6)
May 2 Is an IP Address Protected Information?
April 29 Weekend Reads 042922
April 25 BGP Policies (Part 5)
April 23 Weekend Reads 042222
April 22 On Securing BGP
April 21 Hedge 127: FR Routing Update
April 21 Legal and Ethical Aspects of Privacy
April 16 Weekend Reads 041522
April 13 Hedge 126: George Michaelson on ISDN
April 9 Hedge: April Update
April 8 Weekend Reads 040822
April 6 Hedge 125: Brooks Westbrook and DC Fabric Design
April 4 BGP Policies (Part 4)
April 1 Weekend Reads 040122
March 31 Hedge 124: Geoff Huston and the State of BGP
March 28 BGP Policies (Part 3)
March 25 Weekend Reads 032522
March 24 Hedge 123: Geoff Huston and the State of BGP
March 21 DC Fabric Webinar
March 19 Controversial Reads 031922
March 18 Weekend Reads 031722
March 16 Hedge 122: The Internet Architecture Board
March 14 BGP Policies (Part 2)
March 11 Weekend Reads 031122
March 9 Hedge 121: Computing in the Network with Marie-Jose Montpetit
March 7 BGP Policies (part 1)
March 5 Weekend Reads 030422
March 3 Hedge 120: Information Centric Networking with Dirk Kutscher
February 25 Weekend Reads 022522
February 24 Hedge 119: Product Marketing with Cathy Gadecki
February 19 Controversial Reads 021921
February 18 Weekend Reads 021821
February 16 Hedge 118: Integrating New Ideas with William Collins
February 16 Infrastructure Privacy Webinar
February 3 Providers and Privacy at NANOG 84
February 3 Hedge 117: Mike Bushong and the Product Process
February 2 DC Fabric Intelligence Panel at DCD
February 2 Why Privacy?
January 28 Weekend Reads 012822
January 27 Hedge 116: Schofield’s Laws of Computing
January 22 Weekend Reads 012222
January 20 Hedge 115: Mat Duggan and DevOps
January 14 Unintended Dystopia
January 13 Hedge 114: Hardware Hacking 101 with Federico Lucifredi
January 12 How the Internet Really Works Part 2
January 5 Hedge 113: The PLM with Jeff Jakab
January 3 Quality is (too often) the missing ingredient

2021 (175)

December 18 Weekend Reads 121721
December 16 Hedge 112: The TME with Pete Lumbis
December 11 Controversial Reads 121021
December 11 Weekend Reads 121021
December 10 Hedge 111: Machine Learning and Security with Micah Mussler
December 4 Weekend Reads 120321
December 2 Hedge 110: Andrew Alston and SRv6 Security
November 20 Weekend Reads 111921
November 18 Hedge 109: Edward Lewis and the DNS Core
November 16 Upcoming Webinar: How the Internet Really Works (Part 1)
November 15 Thoughts on Auto Disaggregation and Complexity
November 12 Weekend Reads 111221
November 11 Hedge 108: In Defense of Boring Technology with Andrew Wertkin
November 8 Live Webinar: How Routers Really Work
November 5 Weekend Reads 110521
November 4 Hedge 107: Career Advice with Terry Slattery
October 30 Weekend Reads 102921
October 27 Master Class: Resilience in Large-Scale Fabrics
October 27 Hedge 106: Compositional Network Modeling and Zen
October 23 Controversial Reads 102221
October 23 Weekend Reads 102121
October 20 Hedge 105: Johan Gustawsson and Changing Provider Architectures
October 16 Weekend Reads 101521
October 13 Hedge 104: Automation with David Gee
October 8 Weekend Reads 100821
October 7 Between 0x2 Nerds Live Stream on Network Complexity
October 6 Hedge 103: BGP Security with Geoff Huston
October 1 Weekend Reads 100121
September 29 Hedge 102: BGP Security with Geoff Huston
September 28 Keith’s Law (1)
September 25 Controversial Reads 092521
September 24 Weekend Reads 092421
September 22 Hedge 101: In Situ OAM
September 21 Thoughts on the Collapsed Spine
September 17 Weekend Reads 091721
September 15 Hedge 100: Supply Chain Diversity with Brooks Westbrook and Mike Bushong
September 14 Russ’ Rules of Network Design
September 14 Troubleshooting Webinar this Friday
September 10 Weekend Reads 091021
September 8 Hedge 99
September 3 Weekend Reads 090321
September 1 Hedge 098: DRIP with Stuart Card
August 30 Marketing Wins
August 27 Worth Listening: Heidi Roizen
August 27 Weekend Reads 082721
August 25 Hedge 97: Low Context DevOps
August 23 It always takes longer than you think
August 21 Weekend Reads 082021
August 18 Hedge 96: Mark Nottingham and the Future of Standardization
August 16 The Centralization of the Internet
August 14 Controversial Reads 081421
August 13 Weekend Reads 081321
August 11 Hedge 95: Mike Bushong and Agile
August 9 The Grass is Always Greener
August 6 Weekend Reads 080621
August 4 Hedge 94: Josh Slater and Quantum Networking
August 2 It Always Takes Too Long
July 30 Weekend Reads 073021
July 28 Hedge 93: Dinesh Dutt and Observability
July 28 How to Listen to the Hedge
July 27 Upcoming Live Webinar: Data Center Fabrics
July 26 Leveraging Similarities
July 26 Juniper Master Class: Disaggregation Pros and Cons
July 23 Weekend Reads 072321
July 21 Hedge 92: The IETF isn’t the Standards Police
July 19 Whatever it is, you need more (RFC1925 rule 9)
July 16 Weekend Reads 071621
July 14 Hedge 91: Leslie Daigle and IP Addresses Acting Badly
July 14 Free Speech is More than Words
July 13 NATs, PATs, and Network Hygiene
July 10 Controversial Reads 071021
July 9 Weekend Reads 070921
July 7 Hedge 90: Andrew Wertkin and a Naïve Reliance on Automation
July 2 Weekend Reads 070221
June 29 How Routers Really Work Live Webinar
June 28 Details and Complexity
June 26 Weekend Reads 062521
June 24 Hedge 89: Dana Iskoldski and A House Divided
June 18 Weekend Reads 061821
June 16 The Hedge 88: Todd Palino and Getting Things Done
June 14 It’s Most Complicated than You Think
June 12 Controversial Reads 061221
June 12 Weekend Reads 061121
June 9 The Hedge 87: Jordan Holand and nPrint
June 4 Weekend Reads 060421
June 3 The Hedge 86: TCPLS
May 31 Illusory Correlation and Security
May 28 Weekend Reads 052821
May 27 Dennis Jennings and the History of NSFNET
May 26 The Hedge 85: Terry Slattery and the ROI of Automation
May 24 Is it really the best just because its the most common?
May 21 Weekend Reads 052121
May 19 The Hedge 84: David Brown and the Root of Trust
May 17 The Effectiveness of AS Path Prepending (2)
May 15 Controversial Reads 051521
May 14 Weekend Reads 051421
May 13 The Hedge 83: Bruce Davie and the System View
May 10 How the Internet Really Works, Part 1
May 10 The Effectiveness of AS Path Prepending (1)
May 6 The Hedge 82: Jared Smith and Route Poisoning
May 3 Ambiguity and complexity: once more into the breach
May 1 Weekend Reads 050121
April 28 The Hedge 81: Jana Iyengar and QUIC
April 26 If you haven’t found the tradeoffs …
April 24 Controversial Reads 042321
April 24 Weekend Reads 042321
April 21 The Hedge 80: Ian Goetz and 5G
April 19 Complexity Reduction?
April 16 Weekend Reads 041621
April 15 The Hedge 79: Brooks Westbrook and the Data Driven Lens
April 12 Loose Lips
April 9 Weekend Reads 040921
April 8 New Video Course: How Networks Really Work
April 7 The Hedge 78: Mike Bushong and Radical Candor
April 6 History of Internet 2: Dale Finkelson
April 5 Time and Mind Savers: RSS Feeds
April 5 On the ‘net: From Stamps to the Stack
April 3 Controversial Reads 040321
April 2 Weekend Reads 040221
April 1 The Hedge 77: The Internet is for End Users
March 29 The Insecurity of Ambiguous Standards
March 24 The Hedge 76: Federico Lucifredi and the Taxonomy of Indecision
March 23 It is Always Something (RFC1925, Rule 7)
March 22 Slow Learning and Range
March 19 Weekend Reads 031921
March 17 The Hedge 75: Mike Parks and the Remote Work Scramble
March 16 The History of Identity with Pamela Dingle
March 15 Complexity Bites Back
March 15 Roundtable: Key IT Lessons Learned from 30 Years of the Evolving Enterprise WAN
March 12 Weekend Reads 031221
March 11 The Hedge 74: Brian Keys and the Complexity of User Interfaces
March 9 You Can Always Add Another Layer of Indirection (RFC1925, Rule 6a)
March 8 On Using the Right Word
March 6 Controversial Reads 030621
March 5 Weekend Reads 030521
March 4 The Hedge 73: Daniel Teycheney and Open Source in Networking
March 1 Rethinking BGP on the DC Fabric (part 5)
February 26 Weekend Reads 022621
February 24 The Hedge 72: Lisa Caywood and Marketectures
February 23 Technologies that Didn’t: Directory Services
February 22 Rethinking BGP on the DC Fabric (part 4)
February 20 Weekend Reads 021921
February 18 Book Updates 0221
February 18 The Hedge 71: Nick Russo and Automating Productivity
February 16 History of FARNT with Laura Breeden
February 16 On the ‘net: The Art of Conviction
February 15 Rethinking BGP on the DC Fabric (part 3)
February 13 Controversial Reads 021321
February 12 Weekend Reads 021221
February 11 The Hedge 70: FR Routing Update
February 9 Master Class: Security in the Design of DC Fabrics
February 9 It is Easier to Move a Problem than Solve it (RFC1925, Rule 6)
February 8 Rethinking BGP on the DC Fabric (part 2)
February 5 Weekend Reads 020521
February 3 The Hedge 69: Container Networking Done Right
February 1 Rethinking BGP on the DC Fabric
January 30 Controversial Reading 013021: Freedom of Speech
January 30 Weekend Reads 013021
January 27 The Hedge 66: Daniel Migault and the ADD Working Group
January 26 Agglutinating Problems Considered Harmful (RFC2915, Rule 5)
January 25 Focus is a Virtue
January 22 Weekend Reads 012221
January 20 The Hedge 67: Daniel Beveridge and the Structure of Innovation
January 19 The History of the Cisco TAC
January 18 IPv6 Buzz: Is IPv6 Baked Enough?
January 18 God Objects Considered Harmful
January 15 Weekend Reads 011521
January 14 Webinar: How the Internet Really Works Part 1
January 14 The Hedge 66: Tyler McDaniel and BGP Peer Locking
January 12 Technologies that Didn’t: ARCnet
January 12 Master Class: DC Fabrics
January 9 Weekend Reads 010821
January 6 The Hedge 65: Jacquelyn Adams and the Future of Work
January 5 George Sadowsky on the History of Networking
January 4 The OSI Model: STOP IT!

2020 (204)

December 24 Weekend Reads 122420
December 21 On Important Things
December 18 Weekend Reads 121820
December 17 Upcoming Webinar: How Routers Really Work
December 16 The Hedge 64: Brian Keys and Burnout
December 15 The History of EARN, RARE, and European Networks (part 2)
December 14 Pulling Back the Curtains
December 11 Weekend Reads 121120
December 10 The Hedge 63: Anycast with Andree Toonk
December 7 Current Work in BGP Security
December 4 Weekend Reads 120420
December 2 BGP Training on Ignition
December 2 The Hedge 62: Jacob Hess and the Importance of History
December 1 Data Center Master Classes
December 1 The EXPERIENCE HAS SHOWN THAT Keyword (RFC1925, Rule 4)
November 30 Commodity or Not?
November 30 Innovation Myths
November 27 Weekend Reads 112720
November 25 The Hedge 61: Pascal Thubert and the RAW Working Group
November 24 The History of EARN, RARE, and European Networks (part 1)
November 23 The Senior Trap
November 20 Weekend Reads 112020
November 18 The Hedge 60: Ben Andresen and Growing Teams
November 17 Technologies that Didn’t: Asynchronous Transfer Mode
November 16 Upcoming Webinar: Network Troubleshooting
November 16 Casual Dress Considered Harmful?
November 13 Weekend Reads 111320
November 11 The Hedge 59: Dan Blum and Rational Cybersecurity
November 10 History of Cable Networks with Rouzbeh Yassini
November 9 Technical Debt (or Is Future Proofing Even a Good Idea?)
November 6 Weekend Reads 110620
November 3 The Dangers of Flying Pigs (RFC1925, rule 3)
November 2 Strong Reactions and Complexity
October 31 Weekend Reads 103020
October 28 The Hedge 58: Michael Kehoe and eBPF
October 27 The History of Networking: John Chapman and Cable Networks
October 26 Random Thoughts on IoT
October 23 Weekend Reads 102320
October 23 This is totally random … The Art of Charity
October 21 The Hedge 57: Brian Trammell and PANRG
October 20 Technologies that Didn’t: Network Operating Systems
October 19 Hints and Principles: Applied to Networks
October 17 Weekend Reads 101620
October 15 The Hedge 56: Lysa Myers on Burnout and Good People
October 13 History of Networking: Mark Nottingham and HTTP
October 12 Underhanded Code and Automation
October 9 Weekend Reads 100920
October 8 Link State in DC Fabrics
October 7 The Hedge 55: Nick Carter and Flock Networks
October 6 RFC1925 Rule 2
October 5 Reducing Complexity through Interaction Surfaces
October 4 Weekend Reads 100220
September 30 The Hedge 54: Bob Friday and AI in Networks
September 29 History of Networking: Heather Flanagan on Identity
September 28 Random Thoughts
September 25 Weekend Reads 092520
September 23 The Hedge 53: Deprecating Interdomain ASM
September 22 Technologies that Didn’t: CLNS
September 21 Reducing RPKI Single Point of Takedown Risk
September 19 Weekend Reads 091820
September 16 The Hedge 52: Tobi Metz and the Technologist Question
September 15 The History of Comm Servers with Kevin Herbert
September 14 Everyone Must Learn to Code
September 11 Weekend Reads 091120
September 9 The Hedge 51: Tim Fiola and pyNTM
September 8 It Has to Work
September 7 Understandability
September 5 Weekend Reads 090420
September 2 The Hedge 49: Karen O’Donoghue and Network Time Security
September 2 The Hedge 50: The Challenge of Growing People
September 1 History of Networking: Networking at Google with Richard Hay
August 28 Weekend Reads 082820
August 25 Webinar: How the Internet Really Works
August 25 Technologies that Didn’t: The Fiber Distributed Data Interface
August 24 New Livelesson: Understanding Network Transports
August 24 The White Board and the Simulation
August 21 Weekend Reads 082120
August 20 Data Center Fabric Webinar
August 19 The Hedge 48: Chris Romeo and the State of Security
August 18 History of Networking: An African Perspective of the Internet
August 17 Unsolicited Multicast: Random Thoughts on the LFN White Paper
August 14 Weekend Reads 081420
August 10 Deterministic Networking and New IP
August 7 Weekend Reads 080620
August 5 The Hedge 47: Scott Burleigh and the Bundle Protocol
August 4 History of Networking: Stan Hanks and GRE
August 3 The 4D Network
July 31 Weekend Reads 073120
July 29 The Hedge 46: The Value of a College Degree
July 28 On the ‘net: Internet Consolidation
July 27 Smart Network or Dumb?
July 25 Weekend Reads 072420
July 23 On the ‘net: RFC1925 Rule 11
July 22 The Hedge 45: When to Quit Certifications
July 21 History of Networking: Scott Bradner and the Early Internet at Harvard
July 20 Tradeoffs Come in Threes
July 17 Weekend Reads 071720
July 15 The Hedge 44: Pete Lumbis and Open Source
July 13 Zero Trust and the Cookie Metaphor
July 11 Weekend Reads 071020
July 8 The Hedge 43: Ivan Pepelnjak and Trusting Routing Protocols
July 7 History of USENET with Steve Bellovin
July 3 Weekend Reads 070320
July 3 Packet Pushers: The New Network Challenge
July 1 The Hedge 42: Andrei Robachevsky and MANRS
June 29 The Network is not Free: The Case of the Connected Toaster
June 27 Weekend Reads 062620
June 24 The Hedge 41: Centralized Architectures with Jari Arkko
June 23 The History of LINUX and SUSE with Dirk Hohndel
June 22 Research: Off-Path TCP Attacks
June 19 Weekend Reads 061920
June 17 The Hedge 40: Greg Ferro and the Path from Automated to Autonomic
June 16 On the ‘net: One Size Never Fits All
June 15 Measuring the Core
June 12 Weekend Reads 061120
June 10 The Hedge 39: Dan York and Open Standards Everywhere
June 9 The History of Networking: Ivan Pepelnjak and the Internet Behind the Iron Curtain
June 8 Is QUIC really Quicker?
June 5 Weekend Reads 060520
June 3 The Hedge 38: Evan Knox and Personal Marketing
June 1 To Route or Not?
May 29 Weekend Reads 052920
May 27 The Hedge 37: Stephane Bortzmeyer and DNS Privacy
May 26 The History of LINX with Keith Mitchell
May 25 Ruminating on SOS
May 22 Weekend Reads 052220
May 20 The Hedge 36: Rich Alderson and the Living Computer History Museum
May 18 Learning from the Post-Mortem
May 15 Weekend Reads 041520
May 13 The Hedge 35: Peter Jones and Single Pair Ethernet
May 12 History of NETNOD and LINX with Kurtis Lindqvist
May 11 Understanding DC Fabric Complexity
May 8 Weekend Reads 050820
May 7 On the ‘net: RFC1925 Rule 9a
May 6 The Hedge 34: Andrew Alston and the IETF
May 5 Troubleshooting Theory Live Webinar: May 8
May 4 Quitting Certifications: When?
May 1 Weekend Reads 050120
April 30 On the ‘net: Routing in DC Fabrics
April 29 The Hedge 33: Balazs Varga and DETNET
April 28 History of Networking: Daniel Karrenberg, Mirjam Kuehne and RIPE NCC
April 27 The Resilience Problem
April 24 Weekend Reads 042420
April 22 The Hedge 32: Overcommunication
April 20 Reflections on Intent
April 17 Weekend Reads 041720
April 15 The Hedge 31: Network Operator Groups
April 14 The History of APNIC and APRICOT with David Conrad
April 13 Learning from Failure at Scale
April 10 Weekend Reads 040920
April 8 The Hedge 30: Ethan Banks and Network Fundamentals
April 7 Thinking About Split Tunneling
April 6 Understanding Internet Peering
April 3 Weekend Reads 040320
April 1 History of the April 1 RFC
March 31 The Hedge 29: Remote Work and Security
March 30 Working from Home: Myth and Reality
March 27 Weekend Reads 032720
March 25 The Hedge 28: Intent Based Networking in the IRTF
March 23 An Interesting take on Mapping an Attack Surface
March 21 Weekend Reads 032020
March 18 The Hedge 27: New directions in network and computing systems
March 17 History of Networking: Adrian Farrel and PCE
March 16 Enterprise and Service Provider—Once more into the Windmill
March 13 Worth Reading 031320
March 13 Live Webinar: How the Internet Really Works
March 11 The Hedge 26: Jason Gooley and CHINOG
March 10 On the ‘net: You always need more
March 9 The Art and Necessity of Refocusing
March 6 Weekend Reads 030620
March 5 Upcoming Live Webinar: How the Internet Really Works
March 3 The Hedge 25: Building the Next Generation of Network Engineer
March 3 History of Networking: Raj Jain and Early Transport
March 2 Whither Cyber-Insurance?
February 28 Weekend Reads 022820
February 26 The Hedge 24: Single Source of Truth
February 24 Ironies of Automation
February 21 Weekend Reads 022120
February 19 The Hedge 23: The MOPS Working Group
February 18 Early Internet and IAB History with David Clark
February 17 Knowing How Things Work
February 14 Weekend Reads 021420
February 13 On the ‘net: It’s more complicated than you think
February 12 The Hedge 22: Challenges in Deploying IPv6 in the Enterprise
February 10 Letting go of Clean Design
February 7 Weekend Reads 020720
February 5 The Hedge 21: Industry Standard Network Design
February 4 The History of the Early Internet and Measurement: Jon Crowcroft
February 3 Too Little Engineering
January 31 Weekend Reads 013120
January 29 The Hedge 20: Whatever Happened to Software Defined Networking
January 27 Nines are not enough
January 24 Weekend Reads 012420
January 22 The Hedge 19: Optional Security is not Optional
January 21 The History of Programmable Control Planes
January 20 Knowing Where to Look
January 17 Weekend Reads 011720
January 15 The Hedge 18: Programming Fundamentals for Network Engineers
January 13 Is it Money, Flexibility, or… ??
January 10 Weekend Reads 011020
January 9 On the ‘net: It is always something…
January 8 The Hedge 17: Michael Natkin and Strong Opinions Loosely Held
January 7 The History of BSD and IP Stacks with Rodney Grimes
January 6 Obfuscating Complexity Considered Harmful

2019 (209)

December 20 Weekend Reads 122019: Last Call for the Year
December 19 Upcoming Course: Data Center Design
December 18 The Hedge 16: Pavel Odinstov on Fastnetmon Use Cases
December 17 The Hedge 15: Alistair Woodman on Supporting Open Source
December 16 2019 on Rule11
December 13 Weekend Reads 121319
December 10 The History of Interop with Dan Lynch
December 9 Learning to Trust
December 6 Weekend Reads 120619
December 5 On the ‘Net: So many selfies, so little self
December 4 On the ‘Net: RFC1925 Rule 6A
December 3 The Hedge 14: Ron Bonica and SRM6
December 2 Lessons in Location and Identity through Remote Peering
November 30 Weekend Reads 112919
November 26 The History of Multipath TCP with Olivier Bonaventure
November 25 Research: Securing Linux with a Faster and Scalable IPtables
November 22 Weekend Reads 112219
November 20 Upcoming Webinar: How Routers Really Work
November 19 The Hedge 13: Ivan Pepelnjak
November 18 IPv6 and Leaky Addresses
November 15 Weekend Reads: 111519
November 13 The Hedge 12: Cyberinsecurity with Andrew Odlyzko
November 12 History of Networking: DUAL with JJ Garcia
November 11 Simpler is Better… Right?
November 8 Weekend Reads 110819
November 6 On the Web: RFC1925 Rule6
November 6 The Hedge 11: Roland Dobbins on Working Remotely
November 4 Data Gravity and the Network
November 1 Weekend Reads 110119
October 30 Copy-rights… and -wrongs
October 29 History of Backplanes with Ken Duda
October 28 Data, applications, and the meaning of the network
October 25 Weekend Reads 102519
October 23 Do you open source?
October 22 The Hedge 10: Pavel Odintsov and Fastnetmon
October 21 Dealing with Lock-In
October 18 Weekend Reads 101819
October 17 On the ‘net: Your browser can be safe
October 16 RFC1925, Rule 5
October 15 History of CSNET with Larry Landweber
October 14 Network Troubleshooting Webinar
October 14 (Effective) Habits of the Network Expert
October 11 Weekend Reads 101119
October 9 IPv6 Backscatter and Address Space Scanning
October 8 The Hedge 9: Nash King and Ethics in IT
October 7 SDN, AI, and DevOps
October 4 Weekend Reads 100419
October 2 The Hedge 8: Open Source and the Future of Routing Software
October 1 History of P4
September 30 Service Provider Tech Doesn’t Apply?
September 27 Weekend Reads 09271900
September 24 The Hedge 7: Leslie Daigle and Internet Invariants
September 23 Is it planning… or just plain engineering?
September 20 Weekend Reads 092019
September 17 History of GateD
September 16 Autonomic, Automated, and Reality
September 13 Weekend Reads 091319
September 11 The Hedge 6: Geoff Huston on DoH
September 10 The Hedge 5: Geoff Huston on DoH
September 9 It’s time for a short lecture on complexity…
September 6 Weekend Reads 090619
September 5 Live Webinar: How the Internet Really Works
September 4 RFC1925: Rule 4
September 3 History of TCP/IP with Doug Comer
September 2 Stop Using the OSI Model
August 30 Weekend Reads 083019
August 28 on the ‘net: Should you pay for a virtual private network?
August 27 The Hedge 4: Joe Cozzupoli
August 26 DNS Query Minimization and Data Leaks
August 23 Weekend Reads 082319
August 20 History of YANG with Phil Shafer
August 19 Upcoming Webinar: Resilience and Fast Reroute
August 16 Weekend Reads 081619
August 14 On the ‘net: Streaming with Matt Oswalt
August 13 The Hedge 3: Derick Winkworth and Automation
August 12 There is Always a Back Door
August 9 Weekend Reads 080919
August 7 On the ‘net: RFC1925 Rule3
August 6 History of SNMP with Craig Partridge
August 5 What’s in your DNS query?
August 2 Weekend Reads 080119
July 31 Used to Mean… Now Means…
July 30 The Hedge 2: Jeff Tantsura and Intent Based Networking
July 29 Lessons Learned from the Robustness Principle
July 27 Weekend Reads 072619
July 24 On the Web: Monopoly and the ‘net
July 23 Dave Piscatello: IP and CLNS in the Early Interenet
July 22 The End of Specialization?
July 19 Weekend Reads 071919
July 18 Disaggregation and Business Value
July 18 Feeds for the Hedge
July 16 The Hedge 1: Sonia Cuff and Stress in IT
July 15 Just a few days left to register for my upcoming DC Webinar
July 15 The Floating Point Fix
July 12 Weekend Reads 071219
July 11 RFC1925, Rule 2
July 9 History of NBASE-T with Peter Jones
July 8 Design Intelligence from the Hourglass Model
July 5 Weekend Reads 070519
July 2 The Hedge
July 1 DORA, DevOps, and Lessons for Network Engineers
June 28 Weekend Reads 062819
June 25 History of ATM
June 24 Cloudy with a chance of lost context
June 21 Weekend Reads 062119
June 17 It’s not a CLOS, it’s a Clos
June 14 Weekend Reads 061519
June 12 RFC1925, Rule 1
June 11 History of Networking Page
June 10 Reaction: Overly Attached
June 7 Weekend Reads 060619
June 3 When should you use IPv6 PA space?
May 31 Weekend Reads 053119
May 29 History of the Internet: An Asian Perspective
May 28 Service Fabrics
May 27 The BGP Monitoring Protocol (BMP)
May 24 Weekend Reads 052419
May 22 meeting madness, ONUG, and software defined
May 21 Short Take: Peering in the DFZ
May 17 Weekend Reads 051919
May 17 History of Networking: Pseudowires
May 16 On the ‘net: EVPN Use Cases
May 15 BGP Communities
May 14 On the ‘net: Dial Banks
May 13 Gall’s Law and the Network
May 10 Weekend Reads 051019
May 9 Network Disaggregation Live Lesson
May 8 GDPR and Privacy
May 7 NTP Best Practices
May 6 Throwing the baby out with the bathwater (No, you’re not Google, but why does this matter?)
May 3 Weekend Reads 050219
May 1 Short Take: Customizing Your World
April 30 History of MIME with Nathaniel Borenstein
April 29 About that Easy Button …
April 26 Weekend Reads 042619
April 24 Mentorship and Early Career Development
April 23 Short Take: Flowspec and BCP38
April 22 Practical Simplification
April 19 Weekend Reads 041919
April 16 History of DECnet with Dave Oran
April 15 Why You Should Block Notifications and Close Your Browser
April 12 Weekend Reads 041119
April 11 BGP Peering in the Real World
April 10 DNS Challenge and Response
April 9 On the ‘net: Middleware
April 8 BIER Basics
April 5 Weekend Reads 040419
April 3 Open Source and Reality
April 2 History of Networking: OpenConfig with Anees Shaikh and Rob Shakir
April 1 Choose Simple Solutions
March 29 Weekend Reads 032919
March 29 Instagram and Friday Photos
March 27 Social Media, Limits, and Productivity
March 26 Upcoming Safari Books Webinars
March 25 Grey Failure Lessons Learned
March 22 Weekend Reads 032219
March 19 History of the Cisco CLI
March 18 The Network Sized Holes in Serverless
March 15 Weekend Reads 031519
March 14 On the ‘net: Directory Services
March 13 Navigating Technology Change
March 12 Bridging the Gap
March 11 Research: Practical Challenge-Response for DNS
March 8 Weekend Reads 030719
March 6 Short Take: CAA records and site security
March 5 History of Networking: George Swallow on MPLS/TE
March 4 Is it Balance, or Workism?
March 1 Weekend Reads 030119
February 27 Long Tail Attacks
February 26 Implications of 5G
February 25 Why not OSPF for the Internet Core?
February 22 Weekend Reads 022119
February 20 Technologies that Didn’t: Directory Services
February 19 History of Networking: The Grandfather of the Internet
February 18 Research: Service Fabric
February 15 Weekend Reads 021519
February 14 The Value of Certifications
February 13 Short Take: Cache Covert Channel
February 12 Short Take: Things to learn in 2019
February 11 Learn to Code?
February 8 Weekend Reads 020719
February 8 Forward
February 5 History of Networking: ILNP with Saleem Bhatti
February 4 Research: User Fairness as a Quality of Service Problem
February 1 Weekend Reads 020119
February 1 Arch and Lamp
January 31 IPv6 Security Considerations
January 30 Duplicate BGP Updates
January 29 Network Collective: Peering with Providers
January 28 The Revenge of the Ancillaries
January 25 Weekend Reads 012419
January 24 8:19
January 23 History of Networking: whois with Mark Kosters
January 22 Short Take: HTTPS Interception
January 21 When Metaphors Fail
January 18 Weekend Reads 011819
January 17 Network Collective: The Value of Labs
January 16 On the ‘net: ARCnet
January 15 Reaction: Open Source
January 14 The only thing constant is change
January 11 Weekend Reads 011119
January 10 Queens Lane
January 10 Safari Books Live Webinar on Network Complexity
January 9 Research: Legal Barriers to RPKI Deployment
January 8 History of Networking: History of eVPN
January 7 Chaos Engineering
January 4 Whither Network Engineering? (Part 3)
January 3 Whither Network Engineering? (Part 2)
January 2 Whither Network Engineering? (Part 1)

2018 (285)

December 22 Merry Christmas!
December 21 Gate Folly
December 21 Weekend Reads 122118
December 20 The Network Collective: The Value of Labs
December 19 On the ‘net: Math in Network Engineering
December 18 On the ‘net: ATM
December 17 Short Take: Nerd Knobs
December 14 Inlet Scene
December 14 Weekend Reads 121418
December 12 History of Networking: The Router with Bill Yeager
December 11 Recent Changes in LSR
December 10 Optimal Route Reflection: Next Hop Self
December 7 Facing the Sea
December 7 Weekend Reads 120618
December 5 Research: BGP Routers and Parrots
December 4 MPLS Fast Reroute
December 3 BGP Optimal Route Reflection
November 30 Arches and Pipes
November 30 Weekend Reads 113018
November 27 History of Networking: JR Rivers on Linux Based Routing
November 26 Lessons from Andromeda
November 23 Post and Bikes
November 23 Attitude and Gratitude
November 21 The Network Collective: State of Exhaustion
November 20 On the ‘net: Network Operating Systems
November 20 Policy at the Edge
November 19 CAA Records and Site Security
November 16 Throw Away the Key
November 14 Thinking Differently
November 13 History of Networking: Bob Hinden on IPv6
November 12 Research: Measuring IP Liveness
November 9 Wheel and Sky
November 9 Weekend Reads 110818
November 8 Network Troubleshooting Webinar on Safari Books
November 7 DDoS Mitigation Strategies
November 6 Short Take: DNSSEC Deployment
November 5 BGP Hijacks: Two more papers consider the problem
November 2 Old and New
November 2 Weekend Reads 110218
November 1 SDXcentral: Get Smart about Network Architecture
October 31 Site Work
October 31 Network Troubleshooting at Safari Books Online
October 30 History of Networking: White Box and The Backpack
October 29 Ossification and Fragmentation: The Once and Future ‘net
October 26 At Rest
October 26 Weekend Reads ‭190DA‬
October 24 Imposter Syndrome
October 23 Problems and Solutions
October 22 Reaction: The Importance of Open APIs
October 19 Street Curve
October 17 The Diminishing Returns of Strong Passwords
October 16 History of Networking: QUIC
October 15 BGP and Suboptimal Route Reflection
October 12 Columns and Pews
October 12 Weekend Reads ‭18B62‬
October 11 Technologies that Didn’t: The OSI Protocol Stack
October 10 The State of IPv6 Deployment
October 9 Short Take: It’s always been done that way
October 5 Column
October 5 Weekend Reads ‭188A6‬
October 3 History of Networking: BGP Route Servers and the IXP
October 2 Short Take: BGP Peering Updates
October 1 IPv6 Security Considerations
September 28 Bird
September 25 Network Collective: Do You Really Need Good Engineers?
September 24 BGP Security: A Gentle Reminder that Networking is Business
September 22 Weekend Reads 092118
September 21 Grill
September 20 History of Networking: DMVPN
September 19 On the ‘net: FDDI
September 18 Short Take: Time Management
September 17 On the ‘net: Too Many Tools
September 14 Hall at St. Michael’s
September 14 Weekend Reads 091418
September 13 PFAT Trees Short Take
September 12 Research: Tail Attacks on Web Applications
September 11 MPLS Traffic Engineering Part 3
September 10 Think Like an Engineer, not a Cheerleader
September 7 River Life
September 7 Weekend Reads 090718
September 6 History of Networking: the CCIE
September 5 Research: DNSSEC in the Wild
September 4 Short Take: Learn to Think
September 3 Is BGP Good Enough?
August 31 Bridge of Sighs
August 31 Weekend Reads 083118
August 30 CLKscrew: Another side channel you didn’t know about
August 29 Short Take: State, Optimization, and Surface
August 28 Network Collective: Breaking Things
August 27 Reaction: Centralization Wins
August 24 Inner Belfry
August 24 Weekend Reads 082418
August 23 Research: Facebook’s Edge Fabric
August 21 History of Networking: Ross Callon on MPLS
August 20 Reaction: Nerd Knobs and Open Source in Network Software
August 17 Weekend Reads 081618: New Vulnerabilities
August 17 Cathedral Ceiling
August 16 Reaction: Network software quality
August 15 Give the Monkey a Smaller Club
August 14 The Network Collective: Networking in Harsh Environments
August 13 Research: Are We There Yet? RPKI Deployment Considered
August 10 Weekend Reads 081018: Security and Privacy in Focus
August 10 Arched Way
August 9 Short Take: SDN is not DevOps
August 8 On the ‘net: A Riff on RIFT
August 8 Network Collective: Security and Analytics
August 7 On the ‘net: Subsidiarity and Control Planes
August 7 History of Networking: Vint Cerf
August 6 Research: Covert Cache Channels in the Public Cloud
August 3 Sunset over the Dance Hall
August 2 Security and Analytics
August 1 Short Take: Education is Useless
July 31 On the ‘net: The Little Green Lock
July 30 Research: HTTPS Interceptions
July 27 Weekend Reads 072718
July 27 The Wind Blows
July 26 Networks Without Operators
July 25 On the ‘net: Simplifying Network Design
July 24 History of Networking: The RFC Series
July 24 On the ‘net: Understanding the Exploit Market
July 23 Research: Even Password Complexity is a Tradeoff
July 20 Weekend Reads: 071918
July 20 Columns
July 19 Site Reliability Engineering at the Network Collective
July 18 Complexity Sells
July 17 Thoughts on Impostor Syndrome
July 16 On the ‘net: The Tradeoffs of Information Hiding
July 13 Weekend Reads 071318: Nice to Haves
July 13 Computer Science Department
July 12 Reaction: Some Sayings that Sum Up Networking
July 11 History of the Latin American Internet
July 10 Interop Speaker’s Panel
July 9 Recent BGP Peering Enhancements
July 9 Complexity Sells
July 6 Weekend Reads 070618
July 6 The House Opposite
July 5 Research: P Fat Trees
July 3 Short Take: Culture and Technology
July 2 The Protocol Series: MPLS Part 2
June 29 Weekend Reads 062918
June 29 Looking Up
June 27 Chatting with Rachel Traylor about Math at CHINOG
June 27 Chatting with Eman Conde at CHINOG about Certifications
June 26 On the ‘web: Considerations in Network Complexity
June 25 History of Networking: Email part 2
June 22 Weekend Reads 062218: Bitcoin and Security Flaws
June 22 Road by the Mountain
June 19 Research: Lessons from Evolve or Die
June 18 Off the Cuff: Microsoft Purchases Github
June 15 Weekend Reads 061518: A 51% attack materializes
June 15 Seated at the Foot
June 14 History of Networking: The History of Email (part 1)
June 13 On the ‘net: Clarifying Disaggregation
June 12 Short Take: Practical Career Advice
June 9 At Cisco Live!
June 8 Weekend Reads 060818
June 8 Ancient and Modern
June 6 On the ‘web: Two Kinds of Design
June 5 Reaction: The Power of Open APIs
June 4 The Value of Community
June 1 Weekend Reads 060118: GDPR Heavy
June 1 The Ball at Sunset
May 30 History of Networking: Software Defined Networking with Martin Casado
May 29 Short Take: Fix the Problem
May 28 Research: BBR Congestion-Based Congestion Control
May 25 Weekend Reads 052518
May 25 Waterfall
May 23 Short Take: Security as a Tradeoff
May 22 The Network Collective: State of the Podcast
May 21 Research: Robustness in Complex Systems
May 18 Weekend Reads 051818: Botnets and Throwhammer
May 18 Saints in Form
May 16 Short Take: Telecommuting
May 15 History of Networking: BGP Security
May 14 Research: Bridging the Air Gap
May 11 Weekend Reads: 051118: New spectre-class vulnerabilities, scraping data, and no middle ground on encryption
May 11 You can Fly!
May 10 On the ‘net: Is Networking a Commodity?
May 8 RIPE NCC: The Future of BGP Security
May 7 Why is the Feasibility Condition Less Than?
May 4 Weekend Reads 05042018: It’s time to opt in to security
May 4 Trinkets
May 2 Short Take: The Subsidiarity Principle
April 30 The Universal Fat Tree
April 27 Weekend Reads 042718: Mostly Security and Privacy
April 27 Vaulted Tiles
April 26 History of Networking: Tony P on BIER
April 25 Short Take: Death of the Seven Layer Model
April 24 On the Web: Openfabric at IPspace
April 23 Whatever is vOLT-HA?
April 20 Pipes & Lights
April 20 Weekend Reads 042018: Mostly DNS Security Stuff
April 19 The Network Collective One Year Anniversary Show: War Stories
April 18 Short Take: Disaggregating Firewalls
April 17 OSPF Topology Transparent Zones
April 16 Reaction: DNS Complexity Lessons
April 13 Weekend Reading 041318: GDPR, and the ever deepening pile of security vulnerabilities
April 13 Sunlit Doorway
April 12 On the ‘web: The Best Decicions
April 11 History of Networking: Dino Farinacci joins us to discuss LISP
April 10 On the ‘web: How to Bridge the Network Skills Gap
April 9 The EIGRP SIA Incident: Positive Feedback Failure in the Wild
April 6 Selfie
April 6 Weekend Reads 040618: Kernel Programming, Secure Messaging, and Icebergs
April 5 The Network Collective: MPLS Part 1
April 5 On the ‘net: Openness and Composable Systems
April 4 Reaction: The NRE as the new architect
April 3 On the ‘net: GPU’s and Composable Systems
April 2 Deconfusing the Static Route
March 30 Oriental Lantern
March 30 Weekend Reads 033018: Olympic Destroyer, SONiC, and all the rest
March 29 History of Networking: Dinesh Dutt on the divergence of compute and networking
March 28 Updated Icons
March 28 Policing, Shaping, and Performance
March 27 Short Take: Complexity Wormhole
March 26 Reaction: The importance of diversity of sources
March 23 Weekend Reads 032318
March 23 Sleeping Lion
March 22 What’s wrong with the IETF. And what’s right
March 21 Network Collective: Building Resilient Networks
March 20 Short Take: The Agile State of Mind
March 19 Side Channel Attacks in the Wild: The Smart Home
March 16 Fishy Tire
March 16 Weekend reads 031618: Notes on memcache, GDPR and whois, and the end of Symantec certificates
March 15 History of Hardware Switching
March 14 On the ‘net: Thinking about APIs
March 13 Short Take: Side Channel Attacks
March 12 Low Latency Networking
March 9 Lamp and Gateway
March 9 Weekend Reads 030918: Botnet Avalanche, DNS Security, and IoT Privacy
March 8 Administravia 030818: Added Navigation
March 8 Cloud Connectivity on the Network Collective
March 7 History of Neworking: Alia Atlas on Fast Reroute
March 6 DFS and Low Points
March 5 Responding to Readers: Questions on Microloops
March 2 Weekend Reads 030218:
March 2 Hidden Monster
March 2 Engineering versus Metaengineering
February 28 On Breaking Things
February 27 Network Collective: Securing BGP
February 26 Reaction: Billing by the Hour
February 23 Weekend Reads 022318: Copyright, walls, and botnets
February 23 Brick Dome and Lamp
February 22 Short Take: The Broadcom SDKLT Announcement
February 21 History of Networking: Policy with Joel Halpern
February 21 Worth Reading: Pushed to th Edge
February 20 On the ‘net: Spectre, Meltdown, and Flexible Scaleout
February 19 Enterprise versus Provider?
February 16 Weekend Reads 180216: Skimmers and MITM and x509 Covert Channels, oh my…
February 16 Windowed Dome
February 15 On the ‘net: Rethinking Firewalls
February 13 The DNS Negative Cache
February 12 Reaction: The Pace of Innovation
February 9 Weekend Reads 020918: The Usual Stuff
February 9 Concrete Lantern
February 7 On the ‘net: Fog computing architecture posing challenges for IT
February 6 History of Networking: Paul Vixie on the Origins of DNS
February 5 Some Market Thoughts on the Broadcom SDKLT
February 2 Weekends Reads 020218: GDPR, taxes, and security
February 2 Live Training at Safari Books: How the Internet Really Works
February 2 Parrot Tire
February 1 Rehashing Certifications
January 30 Giving the Monkey a Smaller Club
January 26 Weekend Reads 012618: Mostly Security and Legal Stuff
January 26 Blue Ridge Mountains
January 24 Responding to Readers: How are these thing discovered?
January 23 Responding to Readers: Automated Design?
January 22 History of Networking: The history of DNS with Paul Mockapetris
January 19 Weekend Reads 011918: IoT, Cyberthreat Thinking, and Techlash
January 19 Sunset over the Marsh
January 18 On the ‘net: BGP Traffic Engineering at the Network Collective
January 16 On the ‘web: The Value of MANRS
January 15 The Overoptimization Meltdown
January 12 Weekend Reads 011118: Mostly Security and Policy
January 12 Goofy in the Tower
January 10 Reaction: Why Safe Harbors will Fail
January 9 Section 10 Routing Loops
January 9 Adminstravia 010918
January 8 History of Networking: Segment Routing
January 5 Weekend Reads: Digital Rights, Extended Random, and the Boundaries of User Privacy
January 5 Beast on the Corner
January 4 Flowspec and RFC1998?
January 4 Additions to the ‘net Neutrality Page
January 4 Meltdown and Spectre (Updated)
January 3 History of Networking: Voice over IP Part 2

2017 (178)

December 22 Merry Christmas 2017
December 22 Weekend Reads 122217
December 21 On the ‘net: BGP Peering at the Network Collective
December 20 On the ‘net: Just Two Switches?
December 18 Do We Really Need a New BGP?
December 18 Falco joins SONiC
December 15 Weekend Reads 121517
December 15 Hummingbird
December 14 ‘net Neutrality Collection
December 13 History of Networking: The Early Years of Voice Over IP
December 12 Reaction: AT&T’s Paper on dNOS
December 8 Computer Networking Problems and Solutions on Sale
December 8 Weekend Reads: The Relay Box Attack
December 8 Church
December 6 Reaction: Science and Engineering
December 5 SLAAC and DHCPv6
December 4 Growing and Selling
December 1 Upcoming Seminar: Brighttalk on the future of networking
December 1 Weekend Reads 120117
December 1 Mountains
November 29 Disaggregation with The Network Collective
November 28 History of Networking: DDoS
November 27 ‘Net Neutrality Reader
November 22 Holiday Weekend Reads (22nov17)
November 22 On the ‘net: Three for the week
November 21 Thoughts on Open/R
November 20 One Throat to Choke?
November 17 Korean Corner
November 17 Weekend Reading: 2017-11-17
November 13 Learning to Ask Questions
November 10 Weekend Reads 2017-05-11
November 10 Hummingbird
November 6 A glance back at the looking glass: Will IP really take over the world?
November 3 Marsh
November 2 Reaction: Enabling Privacy is not Harmful
October 30 Applying Software Agility to Network Design
October 26 Several on KRACK
October 25 Reflections
October 24 On the ‘web: Failure Isn’t an Option
October 23 BGPsec and Reality
October 20 Wooden Bridge
October 19 If you haven’t found the tradeoff…
October 16 IS-IS Multi Instance: RFC8202
October 13 Rush Reflection
October 12 History of Networking: Radia Perlman and Spanning Tree
October 12 Forthcoming: Computer Networking Problems and Solutions
October 9 Adminstravia 20171009
September 28 The History of Networking: Tony Li on BGP
September 25 Light/No Blogging this Week
September 22 Hanging Bridge
September 21 On the ‘net: Fragmentation and IPv6
September 20 Reaction: Networks are not cars or cell phones
September 19 History of Networking: BGP Churn with Daniel Walton
September 15 Fish Fountain
September 13 Reaction: Networking Vendors are Only Good for the Free Lunch
September 12 On the ‘web: The Future of Data Center Fabrics
September 8 Black Bird
September 6 On the ‘web: What’s Wrong with BGP
September 5 The History of Networking: BABEL
September 1 Reflections
August 29 BGP Persistent Oscillation
August 25 Ants and Leaves
August 23 History of Networking: BGP Optimizations with Daniel Walton
August 22 Wait, what happened to my choices?
August 21 Master of None
August 18 Wooden Bridge
August 15 On the ‘web: What your momma never told you about OSPF
August 11 Japanese Temple
August 9 On the ‘web: Hyperconvergence in the Network
August 7 The OSPF Two Part Metric
August 4 Shells
August 3 History of Networking: Quality of Service with Fred Baker
August 2 On the ‘web: Getting Involved with the IETF
July 31 Bespoke Processors and the Future of Networks
July 28 Green Door
July 27 On the ‘web: Openfabric and the trash can of the Internet
July 26 Contrarian Reading on Net Neutrality
July 24 IPv6 Standardization
July 24 Administravia 20170703
July 21 Mickey Key
July 19 On the ‘net: Hyperconvergence at the Edge
July 17 Random Thoughts on Grey Failures and Scale
July 14 Herons
July 12 On the ‘web: Is it really simpler?
July 11 Join me at SDxE
July 10 Complexity and the Thin Waist
June 30 Green Doors
June 28 Reaction: The End of MPLS?
June 27 On the ‘net: Interview on my network career
June 23 Mickey Rope
June 21 Open Source Routing at NANOG
June 20 On the ‘web: A new way to deal with DDoS
June 19 PCIe versus Ethernet in a Composable System
June 16 M-m-monkey
June 13 On the ‘web: All you ever wanted to know about EIGRP
June 12 Nonblocking versus Noncontending
June 9 Ducks
June 8 The 40 hour work week
June 6 OneLogin and Password Managers
June 6 Open Networking for Large-Scale Networks
June 5 Ethereum: The “Next New Internet?”
June 2 Flight
June 1 Open19: A New Step for Data Centers
May 30 Anycast and Latency
May 26 Colorful Corner
May 24 Reading List: WannaCry and Ransomware
May 23 Network Slices
May 19 Monkey on Your Back
May 18 On the ‘net: A New Routing Stack Comes to Town
May 17 Procrastination
May 16 Troubleshooting: Half Split
May 12 Turtle Fountain
May 10 Reaction: Offensive Destruction of Attack Assets
May 9 Troubleshooting: Models
May 5 Bird Reef
May 4 Design Resource: Shared Workspace Infrastructure
May 3 Whack a Static
May 2 Troubleshooting: Basics
April 28 Presidential Palace Courtyard
April 26 One the ‘net: The Network Collective and Choosing a Routing Protocol
April 25 MegaSwitch: an interesting new data center fabric
April 21 Monkey on a Wire
April 18 Too Busy
April 17 Optimal Route Reflection
April 14 Chimney
April 12 On the ‘net: Why a new routing stack?
April 11 Notes on the FCC and Privacy in the US
April 10 Reaction: Mend, don’t end, the IETF
April 7 Sunset over the Salt Marsh
April 5 Todo List
April 4 On the ‘net: CAP and SDN
April 3 Distributed Denial of Service Open Threat Signaling (DOTS)
March 31 Garden Gate
March 28 Reaction: The Future is…
March 27 Don’t Leave Features Lying Around
March 24 Costa Rican Mountains
March 21 On the ‘net: Nothing to Hide, Everything to Gain
March 20 Middleboxes and the End-to-End Principle
March 17 Raptor
March 14 On the ‘net: PCEP
March 10 Tan Gate
March 7 Automation
March 6 CoDel and Active Queue Management
March 3 Pier into the Marsh
March 2 On the ‘net: LinkedIn’s DC Design Principles
February 28 Into the Gray Zone: Considering Active Defense
February 27 The Perfect and the Good
February 24 Gate
February 22 On the ‘net: Net Neutrality Explained
February 21 TCP, Congestion Control, and Buffer Bloat
February 20 Reaction; Do we really need a new Internet?
February 17 Sphere in spheres
February 15 Metacognitive
February 14 On the ‘net: I2RS Architecture
February 13 Blocking a DDoS Upstream
February 10 Barn Doors
February 8 Leave Your Ego at the Door
February 6 Mitigating DDoS
February 3 Running
February 1 On the ‘net: Getting to know…
January 30 Toxic Cultures and Reality
January 27 Tile Roof
January 26 On the ‘net: Considerations in Moving to an SDDC
January 25 OSPF TLVs: Taking advantage of improvements in computing power
January 24 Updated Generic Icon Set
January 24 On the ‘net: The background of I2RS
January 23 Dispersing a DDoS: Initial thoughts on DDoS protection
January 20 Bird on a Fence
January 19 Large Scale Network Design LiveLesson
January 18 On the ‘net: Rockstar SE with Terry Kim
January 13 Roof Charms in Seoul
January 11 BGP Flowspec Indirection
January 10 On the ‘net: Is Proprietary Dead?
January 9 One Weird Trick to really be Smarter
January 6 Butterfly
January 4 The Back Door Feature Problem
January 3 Writing Tools: 2017
January 2 Looking Back, Looking Forward

2016 (187)

December 23 Merry Christmas!
December 22 2016 Lessons Learned
December 21 Cell Phone
December 20 Chalet Roof
December 19 Exaggerating the End of NetEng
December 16 Green Doors
December 14 On the ‘net: Looking at Openflow
December 13 IPv6, DHCP, and Unintended Consequences
December 12 snaproute Go BGP Code Dive (14): First Steps in Processing an Update
December 9 Sunset Over Salt Marsh
December 6 Reaction: Openflow and Software Based Switching
December 5 Traffic Pattern Attacks: A Real Threat
December 2 Butterfly
December 1 On the ‘Net: Engineer Versus Complexity
November 29 On the ‘net: BGP Security, LACNOG 26
November 22 Gate
November 18 Spirals
November 17 On the ‘net: The Internet Protocol Journal
November 17 On the ‘net: The Shifting Job of the Network Engineer
November 15 Reactive Malicious Domain Detection (ENTRADA)
November 14 BGP Tools for the DFZ (2)
November 11 Old Turret
November 9 On the ‘net: The Death of Transit
November 8 Reaction: Issue a press release
November 7 BGP Tools for the DFZ (1)
November 4 Kitchen Sink
October 31 snaproute Go BGP Code Dive (13): Finding the tail of the update chain
October 28 Wheel in the Tree
October 27 Reaction: Keith’s Law
October 26 Biometric Password Protection
October 25 Reaction: DevOps and Security
October 24 I2RS and Remote Triggered Black Holes
October 21 Butterfly
October 19 Thoughts on the Tomahawk II
October 18 On the ‘net: Software Patents
October 17 Fabric versus Network: What’s the Difference?
October 14 Basement Hall
October 13 Humans, to Computers
October 12 Reaction: DNS is Part of the Stack
October 11 On the ‘net: BGP as an SDN
October 10 snaproute Go BGP Code Dive (12): Moving to Established
October 7 Sand Castle
October 4 Reaction: The Power of Unintended Consequences #49687
October 3 Elephant Flows, Fabrics, and I2RS
September 30 Grand Staircase
September 28 But it’s a Virtual Ocean
September 27 Being an Effective Interviewer
September 26 snaproute Go BGP Code Dive (11): Moving to Open Confirm
September 23 Plastic Frog on a Plastic Log
September 22 On the ‘net: Author Interview at the LeanPub Blog
September 21 On the ‘net: White Box Switching at LinkedIn
September 20 Can I2RS Keep Up? (I2RS Performance)
September 19 Reaction: Devops and Dumpster Fires
September 16 Spiral Windows
September 15 Nenshou Fire: Recoil
September 14 Enough with “firewalls”
September 13 Grow Up
September 12 snaproute Go BGP Code Dive (10): Moving to Open Confirm
September 9 Bridge to the Ocean
September 7 DC Fabric Segment Routing Use Case (5)
September 5 On Definitions: Whatever is Forwarding Information?
September 2 Hallway
September 1 Docker Forks the Open Source Bubble
August 31 An I2RS Overview
August 30 On the ‘net: BGP—the most successful virus
August 29 snaproute Go BGP Code Dive (9): Moving to Open
August 26 Agile
August 25 Reaction: Forced Updates
August 24 On the ‘net: I2RS on Packet Pushers
August 24 VIRL on Packet Cloud—Some thoughts
August 23 Do what you love?
August 22 DC Fabric Segment Routing Use Case (4)
August 19 Pelican
August 18 Beware the network without an operator
August 17 Self-Improvement Through Time Travel
August 16 On the ‘net: Crashes and Complexity
August 15 snaproute Go BGP Code Dive (8): Moving to Open
August 12 In Flight
August 10 DC Fabric Segment Routing Use Case (3)
August 9 Reaction: Standardization versus Innovation
August 8 snaproute Go BGP Code Dive (7): Moving to Connect
August 5 Buenos Aires
August 4 On the ‘net: The future of networking
August 4 On the ‘net: Layered Control Planes
August 2 Layer 2 Routing—Haven’t we been here before?
August 1 snaproute Go BGP Code Dive (6): Starting a Peer
July 29 Arm Chairs
July 28 DC Fabric Segment Routing Use Case (2)
July 25 On the ‘net: The Foggy Future of Network Engineering
July 25 snaproute Go BGP Code Dive (5): Starting a Peer
July 24 On the ‘net: You keep using that SDN word…
July 22 Nick
July 21 On the ‘net: Has SDN lived up to the hype?
July 21 On the ‘net: What does a control plane do?
July 20 Open19: A New Vision for the Data Center
July 18 snaproute Go BGP Code Dive (4): Starting a Peer
July 15 Chandelier
July 13 Cisco Live: Midweek Impressions
July 12 snaproute Go BGP Code Dive (3)
July 11 DC Fabric Segment Routing Use Case (1)
July 6 Short Cuts
July 6 New Blog: Route-SPF
July 5 snaproute Go BGP Code Dive (2)
July 5 So you want to be a better network engineer? …
July 4 Independence Day 2016
June 30 Launch
June 29 Split Tunnel Insecurities
June 28 Overvaluing Experience
June 27 snaproute Go BGP Code Dive (1)
June 23 Detail of a Tapestry
June 22 On differential privacy
June 21 Reaction: Complexity Sells
June 20 Getting to the point of dual homing
June 17 Bird in flight
June 16 DNS Cookies and DDoS Attacks
June 15 People Skills
June 14 No Capes, No Wands
June 13 When prepend fails, what next? (3)
June 10 The License Agreement
June 7 Building a “Network” Network
June 6 When prepend fails, what next? (2)
June 3 Hilton Head
June 1 DHCP Topology Customization Options
May 31 When prepend fails, what next? (1)
May 30 Can != Should, Is != Ought
May 26 Hilton Head
May 25 What is a Failure Domain?
May 24 BGP Security and SPAM
May 23 What Language Should You Learn?
May 19 Beach Bench
May 18 Universal Scaling and Complexity
May 17 Thinking about side channel attacks
May 16 Why you need to learn to code
May 13 Securing BGP: A Case Study
May 12 Buenos Aires Garden
May 10 DR versus DIS: What’s the Diff?
May 9 Securing BGP: A Case Study (10)
May 6 Frogs and Other Frogs…
May 2 Securing BGP: A Case Study (9)
April 28 Buenos Aires Garden Statue
April 27 New Ways of Thinking
April 26 Flooding Domains versus Areas
April 25 Securing BGP: A Case Study (8)
April 21 Sunrise over Oak Island
April 19 Something Old, Something New…
April 18 Securing BGP: A Case Study (7)
April 15 Review: Algorithms in a Nutshell
April 14 Buenos Aires Under Construction
April 12 What should IETF “standard track” actually mean?
April 12 IS-IS LiveLesson Publishing Soon
April 11 The Design Mindset (5)
April 11 Introduction to Network Complexity at NANOG on the Road
April 8 The Design Mindset (4)—Interaction Surfaces
April 7 Oak Island Beach
April 6 Writing books still matters—reading them does, too
April 4 Securing BGP: A Case Study (6)
April 1 The Candy Jar Effect
March 31 Windows in Buenos Aires
March 30 The CORD Architecture
March 29 Reaction: Should routing react to the data plane?
March 28 The Design Mindset (3)
March 25 CAP Theorem and Routing
March 24 Yokohama
March 24 Rethinking BGP path validation (part 2)
March 22 Should We Stop Encryption? Can We?
March 21 The Design Mindset (2)
March 18 Securing BGP: A Case Study (5)
March 15 Reaction: More Encryption is Bad?
March 14 The Design Mindset (1)
March 9 Slicing and Dicing Flooding Domains (2)
March 8 Reaction: BGP convergence, divergence & the ‘net
March 7 DoS’ing your mind: Controlling information inflow
March 2 New Address
March 2 Slicing and Dicing Flooding Domains (1)
February 29 Why you should care about complexity
February 24 Research ‘net: Decoding Firepath
February 22 Securing BGP: A Case Study (4)
February 17 Rethinking Path Validation
February 16 Should Technology Mirror Business?
February 15 Securing BGP: A Case Study (3)
February 8 Cultivate questions
February 1 Securing BGP: A Case Study (2)
January 25 Securing BGP: A Case Study (1)
January 20 Honest WiFi
January 18 Percentage Driven: Should IP Telephony Die?
January 11 Take them seriously — you could change the world
January 4 Think visually: How graphics skills help engineers

2015 (73)

December 14 Fear itself: Thinking through change and turmoil
December 7 Why aren’t you teaching?
December 2 Innovation and the Internet
November 30 Assuming the worst is not the best assumption
November 24 Personal Integrity
November 17 Anonymity isn’t a bug
November 16 Castle versus Cannon: It’s time to rethink security
November 9 Thoughts on Certifications
November 2 Review: The Art of the Humble Inquiry
October 26 The Odd Hours Solution
October 19 Multitasking, Microtasking, and Macrotasking
October 16 Defining SDN Down
October 12 Rule 11 is your friend
October 5 Memorize — or Think?
September 28 Intellectual virtue and the engineer
September 21 Out with the old: Make removing old technology part of your culture
September 16 How the Internet Really Works
September 14 Information wants to be protected: Security as a mindset
September 2 Micromanaging networks considered harmful: on (k)nerd knobs
August 31 The Silo of Focus
August 25 Worth Learning: The Power Grid
August 24 Skipping the Hype Cycle
August 20 Big Data for Social Engineering
August 19 Are Walled Gardens the Future of the ‘net?
August 17 Liskov Substitution and Modularity in Network Design
August 14 Engineering Lessons, IPv6 Edition
August 12 The Future of Network Engineering
August 10 Engineering Sense
August 5 Review: The Craft of Research
August 3 It’s About Time
July 31 Understanding Rowhammer
July 29 Testing to the Cut Score (Certifications)
July 27 Good Enough
July 22 Saving the Web, Saving Community (Heavy Topic Warning)
July 20 On being different
July 16 Commercializing Community
July 13 False Dichotomy
July 10 Review: Being Logical (Logical Thinking)
July 7 Why certifications make me grouchy
July 6 SD-WAN and Multiple Metrics
July 1 The Tinker and the Geek: Information Technology
June 29 The Pie Problem: Growth and Ratios
June 24 Network scale is more than size
June 22 Why I Support Certifications
June 17 Review: Building Microservices
June 15 Explain-a-holic (Communicate Clearly)
June 8 Architect or Designer?
June 3 Resume Building
June 1 The right tool for the job
May 28 Review: The New IT
May 26 Waste Not a Moment (Time Management)
May 20 Data Can’t Lie?
May 18 Eschew Obfuscation (Communicate Clearly)
May 13 Vendor Neutral
May 11 General Howe’s Dog
May 7 A GUI and a Wizard
May 4 Own the Problem
April 30 Observations on Ownership
April 27 In theory…
April 20 The facts, while interesting, are irrelevant
April 13 Freedom to
April 7 Learning from Germanwings
March 30 Talk to the Dummy
March 23 The Problem with Peanuts
March 16 Act!
March 9 Decide!
March 2 Orientation
February 23 Getting Inside the Loop
February 16 A Neutral ‘Net?
February 9 Friends May Come and Go…
January 19 But Does it Work?
January 12 Leaky Abstractions
January 5 On Losing

2014 (14)

December 29 Why Your Presentation Stinks (Part 2)
December 15 Why Your Presentation Stinks (Part 1)
December 7 Powerpoint Doesn’t Stink
November 24 The Degree or the Certification: Answering the Question
November 17 The Degree or the Certification: You are Not a Widget
November 10 The Degree or the Certification: Learn to See
November 3 The Degree or the Certification
October 27 The Inner Ring
October 13 Write Like You Mean It (Part 2)
October 6 Write Like You Mean It (Part 1)
September 29 Get Out of the Way
September 22 Jim — I’m an Engineer, not a…
September 8 What I Learned by Being Laid Off
August 31 Jack of All Trades

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