Layer 2 (L2) Switching architectures with hands on lab

This is generally one day of Layer 2 (switching) that is part of a larger training program. To support this day of training the following topics may precede:

  • Layers 1/2/3 Refresher
  • Campus Network Design Principles

Target audience

Network systems administrators and engineers from ISP/REN/Universities or corporations, who are responsible for network maintenance and planning.


  • Some command line experience.
  • Basic knowledge of TCP/IP networking
  • For most workshops participants are asked to bring a laptop

Potential L2 Topics

Morning Lectures

  • In-Building Network Design
  • Best practices in Campus Network Design
    • Switch versus Hub versus Router
    • Switching Architectures (star topologies - aggregation switch serves edge switch)
    • Virtual LANs (VLANs)
      • Examples of where we recommend VLANs
      • Technology and practical hints
        • Tagged and untagged
        • Trunking
  • Spanning Tree Protocol (STP)
    • 802.d
    • 802.1w
    • 802.1s
  • Selecting appropriate switches
  • Fault Tolerance
    • Port bundling
    • Spanning tree (using loops to your advantage)
  • Network Management
  • Switching and security considerations
    • Rogue DHCP server prevention
    • Dynamic ARP inspection
    • 802.1x/network access control

Afternoon Lab

  • Build layer 2 network consisting of aggregation switch and edge switches
  • Configure spanning tree across fabric
    • What kind of spanning tree to configure?
    • How to make different types inter-operate
  • Configure Rogue DHCP prevention
  • Add 2nd aggregation switch to provide redundancy
  • Growing your network
  • VLANs

Layer 2 Labs

  • In many cases a remote lab based at the University of Oregon is used to give students full access to HP switches and Cisco routers.
  • In some workshops physical equipment may be shipped on-site and students will build network infrastructure in the classroom.
Last modified 6 years ago Last modified on Sep 28, 2012, 1:20:46 PM