This template includes collapsible lists.

  • To set it to display all lists when it appears (i.e. all lists expanded), use:
  •  {{OSI model |expanded=all}} or, if enabled, {{OSI model |all}}  (i.e. omitting "expanded=").
  • To set it to display one particular list while keeping the remainder collapsed (i.e. hidden apart from their headings), use:
  •  {{OSI model |expanded=listname}} or, if enabled, {{OSI model |listname}}
  • …where listname is one of the following (do not include any quotemarks):
  • application, presentation, session, transport, network, data, physical


  1. ^ "X.225 : Information technology – Open Systems Interconnection – Connection-oriented Session protocol: Protocol specification". Archived from the original on 1 February 2021. Retrieved 10 March 2023.