Additional resources

• SEAMLESS_BGP_MIGRATIONS_GEANT.tar.gz. This archive contains all the configurations generated for and during the GEANT case study. The following directories/files are defined:
  • no_vrfs:
    Research project related: 
    Routing protocols
    Our members: 
    Laurent Vanbever

One of the problems faced by BGP routers today is the BGP churn, i.e. the number of messages that they have to process. Measurement studies have shown that a small fraction of the prefixes are responsible for a large fraction of the BGP messages that are received by BGP routers. Furthermore other studies have shown that the destination prefixes that carry lots of traffic usually have stable BGP routes.

BGP is one of the key protocols that are used on the Internet today. Despite of its importance, the security of BGP is still a concern. Several solutions to improve the security of BGP have been proposed by the research community :

• Secure BGP Project
• pretty secure BGP
• Listen and whisper

During the last week, two recent IETF drafts have proposed to simplify some important aspects of the operation of BGP.

First part (basics, distance vector routing)

• recordings in MPEG4 format
• recordings in Quicktime format

Second part (link state routing, IPv4)

Due to a computer bug, this part was not recorded correctly

The original SimBGP simulator available on BGPVista website is a lightweight event-driven simulator developped by Jian Qiu.
The extended version of SimBGP we developped provides support to the Add-Paths BGP extension, with several selection modes available. We also provide the set of validation tests that were used during the development process.

The research community has developed many tools to try to map the topology of the Internet. As the Internet is a decentralised network composed of more thank 30000 different networks, it is very difficult (and perhaps impossible) to obtain a detailed map of the network. The most widely use to infer the router-level topology of the Internet is traceroute.