ASRank is CAIDA’s ranking of Autonomous Systems (AS) (which approximately map to Internet Service Providers) and organizations (Orgs) (which are a collection of one or more ASes). This ranking is derived from topological data collected by CAIDA’s Archipelago Measurement Infrastructure and Border Gateway Protocol (BGP) routing data collected by the Route Views Project and RIPE NCC.
ASes and Orgs are ranked by their customer cone size, which is the number of their direct and indirect customers. Note: We do not have data to rank ASes (ISPs) by traffic, revenue, users, or any other non-topological metric.
Date added: 2022-06-22
The MANIC project – Measurement and Analysis of Interdomain Congestion – has developed a prototype system to monitor interdomain links and their congestion state, in order to provide empirical grounding to debates related to interdomain congestion. Its dataset is collected using the Time-Sequence Latency Probing (TSLP) method from Ark Vantage points, after running the bdrmap algorithm to automatically infer the IP links (the near IP and far IP addresses) interconnecting neighboring Autonomous Systems (ASNs).
Date added: 2022-01-30
The goal of the GMI project (Designing a Global Measurement Infrastructure to Improve Internet Security, or GMI3S) is to design a new generation of measurement infrastructure for the Internet, which will support collection, curation, archiving, and expanded sharing of data needed to advance critical scientific research on the security, stability, and resilience of Internet infrastructure.
Date added: 2021-10-21
BGPStream is an open-source software framework for live and historical BGP data analysis, supporting scientific research, operational monitoring, and post-event analysis. BGPStream V2 adds several new features, including native support for true real-time data access via BMP and performance improvements.
Date added: 2021-08-16
This visualization represents macroscopic snapshots of IPv4 and IPv6 Internet topology samples captured January 2020. For the IPv4 map, CAIDA collected data from 159 monitors located in 50 countries on 6 continents.
Date added: 2021-05-02
An animated slideshow presentation of the history of IPv4, using a Sankey diagram to visualize the flow of IPv4 address allocations since inception in 1977, through various address management organizations and policies.
Date added: 2020-08-06
“Net Neutrality has become a bit of a political football. We don’t have even close to enough data to truly litigate the net neutrality debate in an equitable way. We don’t know enough. You need measurement.” In this series of short clips, KC Claffy, founder and director of the Center for Applied Internet Data Analysis (CAIDA) at SDSC, brings us up to speed on some of the key issues surrounding the Net Neutrality debate.
Watch the video “The Net Neutrality Debate”, part of a series on Net Neutrality and Why We Need to Measure the Internet.
Date added: 2019-03-05
Over the past several months, CAIDA, in collaboration with Matthew Luckie at the University of Waikato, has upgraded Rob Beverly’s original spoofing measurement system, developing new client tools for measuring IPv4 and IPv6 spoofing capabilities, along with services that provide reporting and allow users to opt-in or out of sharing the data publicly.
Watch the video “What is IP Spoofing?” for an overview of what IP spoofing is and how you can install Spoofer and help.
Date added: 2017-05-24