IPv6 routing history: the 6bone
 Additional information

 
Analysis of route availability and route stability for meaningful groups of prefixes:

  • the pTLAs (pseudo Top Level Aggregators) , assigned within 6Bone;
  • the sTLAs (sub-Top Level Aggregators) assigned by the Regional Internet Registries (RIRs).

List of pTLAs and List of sTLAs we monitored over time.

See Notes on the IPv6 routing history for more details.

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IPv6 BGP routing table size growth
Based on the data collected with ASpath-tree starting from September 1998 until September 2006, we can show here the growth over time of IPv6 prefixes advertised within the BGP cloud.
In this chart you can see the effect of the 6bone phase out, officially completed on June 6th, 2006: almost all pTLA prefixes disappered from the IPv6 BGP tables at the same time.
In parallel, you can see the growth of the number of commercial IPv6 prefixes, the sTLAs during the initial allocation phase.
The delta-prefixes to make the total is given by prefixes longer than expected (unaggregated prefixes) or considered invalid because not matching known assignement rules.
This page has been created elaborating the output of ASpath-tree, a tool developed at Telecom Italia (TILAB, formerly CSELT).
Questions and comments to our IPv6 Group