Show 117 – A Rope, A Chair and Helping Hands – Sue Hares and the IETF

Sue Hares – Long term Internet and IETF person plus BGP RFC author joins us to talk about routing protocols and life when developing routing protocols like BGP. In a wide ranging discussion we talk about software defined networking and impact on routing protocols.

Sue is art of the IDR Working Group and particularly involved with the IRS (Interface to the Routing System) and joined us at 1am local time after travelling for many ours. Thanks to Sue talking with us.

People on the show where Russ White, Sue Hares, Ethan Banks and Greg Ferro.


Show Notes

Interface to the Routing System Framework

Interface to the Routing System Problem Statement

A Policy Framework for the Interface to the Routing System –



Greg Ferro
Greg Ferro is a Network Engineer/Architect, mostly focussed on Data Centre, Security Infrastructure, and recently Virtualization. He has over 20 years in IT, in wide range of employers working as a freelance consultant including Finance, Service Providers and Online Companies. He is CCIE#6920 and has a few ideas about the world, but not enough to really count. He is a host on the Packet Pushers Podcast, blogger at and on Twitter @etherealmind and Google Plus.
Greg Ferro
Greg Ferro
Greg Ferro
  • Dan Shechter

    An excellent show.

    Really liked the SNA analogy to controller based SDN. There are few differences, but good analogy.

    I actually liked SNA and APPN, so I have no hard feelings about it. If SDN will be as that good, than our net admin life will be easier.

  • Michael Gonnason

    This was a great show,
    Sue Hares has great wit and humor. Very entertaining yet still very informative.

    • Andre Amorim

      Very true, I became instantly her fan 😀 .

  • Todd Hoff

    SNA is a closed system completely controlled by IBM on IBM hardware. It’s hard to imagine being more different than SDN.

    • Dan Shechter

      One can argue, that other than the OpenFlow protocol, there isn’t much difference.

      As the secret sauce will be in the controller and in the optional agent running on the device, most of SDN implementations will be a closed system.

      On the other hand, you are right about what is running on top of SDN, which is ethernet/IP/what ever, which is generally open.

    • Etherealmind

      SAN was also rigid and clearly defined. Standards were clear and structured with purpose and intention behind every decision.

      Two sides of the coin.

  • Ricardo Canepa

    Another excellent show. It is very interesting to hear Sue Hares’ insight and experience.