Internet Topology

• The current connectivity map
• Internet measurement: state of DeUnion
• Routing arbiter database reports, showing number of routes by prefix length
• An atlas of cyberspace
• Internet topology:
  • Overview of the European Internet (Jon Crowcroft)

    ANS	UKERNA	22 Mb/s, shortly 34 Mb/s
    Pipex	UUnet	45Mb/s
    Demon		45Mb/s
    BTnet	MCI	45Mb/s

  • Internet map, Feb. 1982
  • An Atlas of Cyberspace: Maps of Internet Service Provider (ISP) and Internet Backbone Networks
  • Cogent Communication network map (OC-192 backbone, OC-48 metropolitan rings)
  • Pennsylvania network facilities
  • vBNS
  • ANSnet
  • CERFnet
  • UUNet
  • Sprint (320 POPs, up to DS-3; CIX, MAE-E, MAE-W, NY)
  • DFN WiN (German university and research network)
  • DANTE EuropaNET
  • Qwest nationwide SONET network (13,000 miles along railroad right-of-ways as six SONET rings, with two plastic tubes four feet in the ground)
  • Level 3, an IP-based national network
• Ken Calvert topology generator
• BRITE, Boston University topology generator
• Inet topology generator (UMich)
• Cisco icon library for drawing networks
• DIMES measurement project

Last updated by Henning Schulzrinne