Long-Range Correlations and Memory in the Dynamics of Internet Interdomain Routing

TL;DR

This paper analyzes the dynamics of Internet interdomain routing updates, revealing long-range correlations and memory effects that can inform better modeling of Internet routing behavior.

Contribution

It provides the first systematic time series analysis of Border Gateway Protocol update rates, uncovering long-term correlations and memory effects in routing dynamics.

Findings

BGP update rates are highly volatile.

Routing updates exhibit long-range correlations.

Memory effects similar to seismic and financial data.

Abstract

Data transfer is one of the main functions of the Internet. The Internet consists of a large number of interconnected subnetworks or domains, known as Autonomous Systems. Due to privacy and other reasons the information about what route to use to reach devices within other Autonomous Systems is not readily available to any given Autonomous System. The Border Gateway Protocol is responsible for discovering and distributing this reachability information to all Autonomous Systems. Since the topology of the Internet is highly dynamic, all Autonomous Systems constantly exchange and update this reachability information in small chunks, known as routing control packets or Border Gateway Protocol updates. Motivated by scalability and predictability issues with the dynamics of these updates in the quickly growing Internet, we conduct a systematic time series analysis of Border Gateway Protocol update rates. We find that Border Gateway Protocol update time series are extremely volatile, exhibit long-term correlations and memory effects, similar to seismic time series, or temperature and stock market price fluctuations. The presented statistical characterization of Border Gateway Protocol update dynamics could serve as a ground truth for validation of existing and developing better models of Internet interdomain routing.