Graph RFCs (Request for Comments) and their relationships
Latest commit a936880 Aug 23, 2012 @msparks Update for new pydot API.
Thanks to Tim Howes for the patch.
Failed to load latest commit information. Adding Feb 19, 2012 Update for new pydot API. Aug 23, 2012


rfcgraph is a simple Python script that uses Graphviz to generate a very large graph showing the relations between RFCs.

rfcgraph full

rfcgraph zoom

Green arrows indicate an update:

  • "RFCx → RFCy" is read as "RFCx is updated by RFCy".

Red arrows indicate an obsoletion:

  • "RFCx → RFCy" is read as "RFCx is obsoleted by RFCy".



To run rfcgraph, you'll need to get a copy of the RFC index XML file rfc-index.xml from Then run:

./ -h

to see the usage.

Note that rfcgraph and graphviz are very memory intensive. On the order of 2-2.5GB of RAM is needed to generate the full graph.