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General


Data Analysis
  • BGP Trend Analysis
    All routers Stats
    > Prefixes
    > ASes
    > Address Space vs. As Hops
    > Prefixes vs. As Hops
       - European Research
       - Global Research
    Individual Stats

    > Prefixes
    > ASes
    > Address Space vs. AS Hops
    > Prefixes vs. As Hops
       - European Research
       - Global Research
  • ISIS


BGP Analysis

The BGP analysis shown on these pages is from data collected on a machine in Geneva, Switzerland. This machine is part of a BGP(I-BGP) mesh which captures all BGP information and stores it to disk using a freely available software package called ZEBRA.

We show analysis from all routers that zebra reports as well as indivdual statistics from each router.

The metrics that we look at are

  • Prefixes
    • Unique prefixes seen by the routers.
  • ASes
    • Total number of ASes seen
  • Address Space vs. AS Hops
    • Distribution of the IPv4 addresses of the Internet reachable by GEANT
  • Prefixes vs. AS Hops
    • Number of hops it will take to reach a given percentage of the internet seen by geant routers.
    • Prefixes vs. AS - Global Research All entries in the routing tables that DO NOT include the following community attributes:
      20965:3549 - geant-gx;
      20965:3300 - geant-infonet;
      20965:1299 - geant-tl
    • Prefix vs. AS - European Research Only entries in the routing tables that have the community attribute of 20965:0155 - geant-nrn set.