Episodes

  • Hedge 261: The NTIA, Spectrum, and Broadband

    Hedge 261: The NTIA, Spectrum, and Broadband
    Mar 1 2025
    In the United States, the National Telecommunications and Infrastructure Administration manages spectrum and researches the current state of Internet connectivity for policy makers. Henning Schulzrinne joins Tom and Russ to discuss the role of the NTIA, spectrum management, and broadband management.
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    41 mins
  • Hedge 260: The State of the DFZ

    Hedge 260: The State of the DFZ
    Feb 21 2025
    Trends in the global BGP table--the Default Free Zone (DFZ) table--can tell us a lot about the state of the global Internet. Is the Internet growing? Is IPv6 growing, or are we still in a world of "all things IPv4?" Geoff Huston joins Tom Ammon and Russ White to review the state of the routing table from 2024.
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    38 mins
  • Hedge 259: Architecture and Process

    Hedge 259: Architecture and Process
    Feb 14 2025
    We often try to "institutionalize" things that work into repeatable processes—and most of the time, it doesn't work. The process ends up becoming unwieldy, eventually failing to prevent failures and stifling innovation. How can we get out of this rut? Differentiating between architecture and process. Far too many IT shops try to replace architecture with process. Our second topic for this episode is the destructive lies of the tool trope. Tools are not "neutral," they impact the way we think and work. A primary example of a tool that can often reshape our thinking and doing in very negative ways is ... the process.
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    38 mins
  • Hedge 258: pyATS and Testing Through Automation

    Hedge 258: pyATS and Testing Through Automation
    Feb 7 2025
    We often think of network automation as a configuration tool, but automation can also be used for one-off, integration, and even continuous testing. Dan Wade joins Tom Ammon and Russ White to talk about pyATS and the concept of automated testing.
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    36 mins
  • Hedge 257: Gaining Experience in IT

    Hedge 257: Gaining Experience in IT
    Jan 31 2025
    Every recruiter and hiring manager wants people with five years of experience, but you cannot get experience without being hired into a position. How can you break this conundrum? Daniel Dib joins Tom and Russ to talk about how folks just coming into IT, or even those with lots of experience who are trying to shift their focus, can gain experience.
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    41 mins
  • Hedge 256: The Impact of Your First Language

    Hedge 256: The Impact of Your First Language
    Jan 24 2025
    Richard Wexelblat published an article in 1980 titled: "The consequences of one's first programming language." We've all seen C code written like Python, or Python code written like C, so it's obvious a coder's first language has a long lasting effect on their style. What about network engineers? Are there times and places where the first of anything a network engineers encounters has a long lasting impact on the way they think and work? In this roundtable, Tom, Eyvonne, and Russ consider different ways this might apply to network engineering.
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    38 mins
  • Hedge 255: Open Multi-perspective Issuance

    Hedge 255: Open Multi-perspective Issuance
    Jan 17 2025
    One of the various attack surfaces in encryption is insuring the certificates used to share the initial set of private keys are not somehow replaced by an attacker. In systems where a single server or source is used to get the initial certificates, however, it is fairly easy for an attacker to hijack the certificate distribution process. Henry Birge-Lee joins us on this episode of the Hedge to talk about extensions to existing certificate systems where a certificate is pulled from more than one source. You can find his article here.
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    48 mins
  • Hedge 254: Should you /64?

    Hedge 254: Should you /64?
    Jan 10 2025
    One of the big questions about IPv6 is: "Should you use /64's for subnets?" Tom Coffeen joins Eyvonne Sharp, Rick Graziani, and Russ as we discuss the various questions surrounding IPv6 addressing, planning, waste, and ... should you /64?
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    50 mins