====== Links ======

  * [[http://www.cisco.com/c/en/us/support/docs/lan-switching/multiple-instance-stp-mistp-8021s/116464-configure-pvst-00.html|PVST Simulation on MST Switches]]
  * [[http://blog.ine.com/2010/02/22/understanding-mstp/|Understanding MSTP]]