Data Center Interest Group Switzerland proudly present Ivan Pepelnjaks Workshop:

DIGS Workshop Designing Leaf-and-Spine Fabrics

Location Hilton Zurich Airport Hotel
Date 24th of November 2016
Time 9:00 am – 12:30 am

This vendor-independent workshop provides you

Every data center switching vendor is telling you that leaf-and-spine fabrics are the way to go, and the sales process often focuses only on the required bandwidth and port counts… but unless you’re buying a fully integrated black box (example: Cisco ACI), someone has to design the layer-2 and layer-3 aspects of the fabric.

  • Explain the basics of leaf-and-spine fabrics, including ECMP load balancing and oversubscription ratios
  • Help you design your data center fabric regardless of whether you need a layer-2 (VLAN) or layer-3 (routed) solution
  • Give you design guidelines ranging from small (two switches) to very large (hundreds of switches) fabrics

Topics covered

  • Introduction to leaf-and-spine architectures
  • Layer-3 designs
  • Layer-2 designs
  • Mixed layer-2 + layer-3 designs

Introduction to Leaf-and-Spine Architectures

  • Leaf-Spine (or Clos) architectures
  • Multi-stage leaf-and-spine fabrics
  • Leaf-and-spine design process
  • Deployment considerations

Layer-3 Designs

  • Non-redundant and redundant layer-3-only designs
  • Routing protocol selection
  • Core (leaf-to-spine) link addressing and unnumbered interfaces
  • BGP and OSPF design and implementation details

Layer-2 Designs

  • Simple layer-2-only designs using either MLAG or layer-2 fabric technologies
  • Layer-2 designs with redundant server connectivity
  • Implementation of layer-2 fabrics with overlay virtual networking

Mixed Layer-2 + Layer-3 Designs
This section builds on the principles introduced in layer-2 designs and layer-3 designs and describes these typical scenarios:

  • Routing on a single spine switch
  • Layer-2 designs with redundant server connectivity
  • Routing on multiple spine switches (multiple active default gateways)
  • Anycast leaf gateways
  • Anycast leaf gateways using overlay transport across fabric core
  • Layer-3-only fabrics implemented with routed core or overlay transport

Technical Deep Dives
Workshop attendees get access to Leaf-and-Spine Fabric Architectures webinar which includes nine hours of downloadable videos covering the topics described in the workshop as well as:

  • BGP enhancements in data center fabrics by Dinesh Dutt (Cumulus Networks);
  • Layer-3-only data centers with host routing (Dinesh Dutt)
  • Routing on hosts (Dinesh Dutt)
  • Shortest Path Bridging technology deep dive by Roger Lapuh (Avaya)
  • VXLAN with EVPN control plane by Lukas Krattiger (Cisco Systems)

After attending this workshop you’ll be able to

  • Design physical connectivity in leaf-and-spine fabric
  • Select the hardware used for leaf and spine switches
  • Design IP addressing and select the best IP routing protocol for your fabric
  • Design layer-2 transport across the fabric using layer-2 technologies (MLAG, TRILL or SPB) or VXLAN encapsulation
  • Create mixed layer-2 / layer-3 fabrics

Who should attend
This workshop targets architects and designers who are planning, designing or building next-generation data center fabrics.

Workshop Participant Fee
Fr. 645.— (including lunch afterwards)

The attendees will receive full access to electronic version of the workshop materials, as well as related ipSpace.net videos with further technical details.

In the afternoon the 4th DIGS Special Interest Group Next-Gen Infrastructure (formerly SDN) workshop will take place – please check here

About Ivan Pepelnjak
Ivan Pepelnjak, CCIE#1354 Emeritus, is an independent network architect, book author, blogger and regular speaker at industry events like Interop, RIPE and regional NOG meetings.

He has been designing and implementing large-scale service provider and enterprise networks since 1990, and is currently using his expertise to help multinational enterprises and large cloud- and service providers design next-generation data center and cloud infrastructure using Software-Defined Networking (SDN) and Network Function Virtualization (NFV) approaches and technologies. Ivan is author of several Cisco Press books, and a series of highly successful webinars.

To learn more about him, visit ipspace.net or read his blog at blog.ipspace.net. Ivan Pepelnjak is top rated speaker from Interop Las Vegas 2014 – see http://www.informationweek.com/interop/top-rated-speakers-from-interop-las-vegas-2014/d/d-id/1234877

Cancellations of registration are free of charge until 30 days before. Cancellations received beyond this point will incur 100% of the admission fee. You will get an invoice for the respective amount. In any case, however, a delegate may be sent at no additional costs.

Register here!


Ivan Pepelnjak is part of the organization committéé and advisory of the Data Center Interest Group Switzerland.
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