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NANOG Meeting Presentation Abstract

Feeling the Brady Bunch's Pain
Meeting: NANOG58
Date / Time: 2013-06-04 10:45am - 11:05am
This item is webcast
Room: Crescent City Ballroom
Presenters: Speakers:

Michael Sinatra, ESnet

Michael Sinatra has been involved in network operations for more than a decade. For over eleven years, he worked as one of the two lead network operator/architects for UC Berkeley. There, he implemented anycast DNS, DNSSEC, and spearheaded IPv6 deployment on the campus. In early 2011, he joined the network engineering team of ESnet where he is currently working on deploying one of the first nationwide 100GE networks. Michael has frequently disseminated his experiences deploying new technologies through presentations, talks, and tutorials at NANOG, the Internet2 meetings, and other community events. On rather short notice, Michael recently chaired a round-table and helped develop the program for the 2011 Chinese-American Networking Symposium in Kunming, China. He has attended NANOG on average of once per year since NANOG 27 in 2003. He has served on the program committees of the Internet2 Joint Techs conference and the CENIC regional conference.
Abstract: When ESnet received the ANI grant to build a new 100GE network, it already had its fourth-generation network in full production, using multiple 10GE links. ESnet4 was comprised of routers from two vendors, used two IGPs (OSPF for IPv4 and IS-IS for IPv6), and had separate infrastructures for production IP traffic and for research traffic (the latter of which could be reserved using OSCARS--an early form of SDN). The ANI 100GE that was constructed used a third vendor, had only one IGP (IS-IS), and promised to consolidate the OSCARS reservation system, with its sophisticated MPLS backend, into a single very-high-speed network. This talk will cover the lessons learned during the daunting task of consolidating the existing ESnet4 and the new ANI networks into a single production network: ESnet5. This talk discusses some of the main issues with the rollout of the new production 100GE network that ESnet has developed in very close partnership with Internet2, and my part will be to discuss mainly Layer-3 issues: Consolidating routing protocols and routers and creating a cleaner and simpler design, while minimizing downtime during the transition.

My hope is that this talk will help to answer questions such as: Why is planning doubly-important in major network migrations? Why was it necessary to turn on *OSPFv3* just to migrate from OSPFv2 and IS-IS to IS-IS only? How did you deal with bottlenecks and routing loops? Why did you use the Brady Bunch as a metaphor given that you never liked that show?
Files: pdfFeeling the Brady Bunch's Pain(PDF)
youtubeFeeling the Brady Bunch's Pain
Sponsors: None.

Back to NANOG58 agenda.

NANOG58 Abstracts

  • BGP 101
    Speakers:
    Dawit Birhanu, Cisco Systems;
  • BGP 102
    Speakers:
    Dawit Birhanu, Cisco Systems;
  • Security Track
    Speakers:
    Merike Kaeo, IID; Krassimir Tzvetanov, Cisco Systems;
  • Security Track
    Speakers:
    Merike Kaeo, IID; Krassimir Tzvetanov, Cisco Systems;

 

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