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NANOG Meeting Presentation Abstract

Multi-Stage Clos Architectures
Meeting: NANOG60
Date / Time: 2014-02-10 1:30pm - 2:15pm
This item is webcast
Room: Peachtree Ballroom
Presenters: Speakers:

Doug Hanks, Juniper Networks

Douglas Richard Hanks Jr. is a Sr. Data Center Architect with Juniper Networks and focuses on solution architecture for the data center. He works in the Campus and Data Center Business Unit (CDBU) that’s responsible for the Juniper EX, QFX, and QFabric Series hardware, software, and solutions. Previously he was a Solution Architect in the Routing Business Unit (RBU) with Juniper Networks supporting data center solutions with the Juniper MX platform. Prior to working in the business units, Douglas was a Sr. Sales Engineer for Juniper Networks and supported large enterprise accounts such as Chevron, Hewlett-Packard, and Zynga. Douglas is certified with Juniper Networks as JNCIE-ENT #213 and JNCIE-SP #875. Douglas’ interests are network engineering and architecture for enterprise and service provider technologies. He is the author of the Juniper MX Series published by O’Reilly Media and several Day One books published by Juniper Networks Books. Douglas is also the co-founder of the Bay Area Juniper Users Group (BAJUG). When he isn’t busy with networking, Douglas enjoys computer programming and photography. Douglas can be reached at [email protected] or on Twitter @douglashanksjr
Abstract: As overlay networks in the data center become more common place,
everyone is trying to build the best possible underlay using CLOS
fabrics. A key issue with large 5-stage CLOS fabrics are the
provisioning and management. This presentation proposes a method to
simply the management of a 5-stage CLOS fabric by collapsing three
stages into a logical entity called a vSpine. By creating a
multi-stage CLOS using a vSpine in the middle stage, it effectively
reduces the operational overhead of a five-stage CLOS down to a
three-stage CLOS, but with the benefit of having the scale of a five-
state CLOS.
Files: pdfMulti-Stage Clos Architectures(PDF)
youtubeMulti-Stage Clos Architectures
Sponsors: None.

Back to NANOG60 agenda.

NANOG60 Abstracts

  • Datacenter Track
    Martin Hannigan, Akamai Technologies, Inc.; Daniel Golding, Iron Mountain;
  • Datacenter Track
    Martin Hannigan, Akamai Technologies, Inc.; Daniel Golding, Iron Mountain;
  • BGP 101
    Dawit Birhanu, Cisco Systems;
  • BGP 102
    Dawit Birhanu, Cisco Systems;


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