Date: 15th February 2022
Venue: Online


  • IS-IS is a widely used IGP (interior gateway protocol) in both enterprise and service provider networks.
  • This tutorial will cover how link state protocols work in general, the different IS-IS packet types, IS-IS neighbour discovery, and IS-IS best path selection. We will also discuss best practices around what routing information should be carried in IS-IS.

Target Audience

  • Technical folks who are building or operating a service provider or enterprise network.


It is assumed that participants have a understanding of:

  • network operations, Internet technologies, OSI reference model and TCP/IP.
  • Basic Linux command line (CLI) skills.
  • The lab exercises use Cisco IOS configuration syntax.

We recommend the following Academy courses be completed before the start of the tutorial:

Other Requirements

  • Hardware: It is highly recommended that participants bring their own laptop computers with Wifi(b/g/n) and administrative access to system to practice the lessons learned during the workshops.
  • Software: SSH Client, Telnet Client (PuTTy)
  • Confirm Secure SHell (SSH) is allowed from the office or home network to access the lab infrastructure? Test ssh connectivity, try to connect to For example from the CLI type: ssh

Workshop topics

  • Shortest Path First logic
  • Neighbour discovery
  • Link State operation
  • IS-IS addressing
  • IS-IS hierarchy
  • IS-IS design considerations

Workshop Items

  • Agenda (includes links to presentations and schedule)
  • Trainers: Dave Phelan (APNIC), Terry Sweetser (APNIC - Community Trainer)
  • isis-20220215-online.txt
  • Last modified: 2022/03/03 06:11
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