[LACNIC/Napla] Artículos de interés sobre detección de incidencias en la infraestructura de peering y análisis regional del ecosistema de peering

[Gael Hernandez]

Buenas,

Comparto por aquí un par de artículos interesantes. El primero trata 
de la detección de cortes e incidencias en la infraestructura utilizada 
por los IXPs a través de la observación de información de 
enrutamiento, en concreto de las comunidades BGP. El segundo es un 
análisis regional del ecosistema de peering publico y privado en las 
cinco regiones de Internet.

Saludos,
Gael



**Detecting Peering Infrastructure Outages in the Wild**

Peering infrastructures, namely, colocation facilities and Internet 
exchange points, are located in every major city, have hundreds of 
network members, and support hundreds of thousands of interconnections 
around the globe. These infrastructures are well provisioned and 
managed, but outages have to be expected, e.g., due to power failures, 
human errors, attacks, and natural disasters. However, little is known 
about the frequency and impact of outages at these critical 
infrastructures with high peering concentration.

In this paper, we develop a novel and lightweight methodology for 
detecting peering infrastructure outages. Our methodology re- lies on 
the observation that BGP communities, announced with routing updates, 
are an excellent and yet unexplored source of information allowing us to 
pinpoint outage locations with high accuracy. We build and operate a 
system that can locate the epi- center of infrastructure outages at the 
level of a building and track the reaction of networks in near 
real-time. Our analysis unveils four times as many outages as compared 
to those publicly reported over the past ve years. Moreover, we show 
that such outages have signi cant impact on remote networks and peering 
infrastructures. Our study provides a unique view of the Internet’s 
behavior under stress that often goes unreported



**A Region-Centric Analysis of the Internet Peering Ecosystem**

The Internet is transitioning from a hierarchical structure to a flat 
structure where more and more networks participate in public peering at 
IXPs and private peering at interconnection facilities to increase 
performance and reduce transit costs. PeeringDB is a public online 
database containing information about IXPs, facilities, and networks 
participating at IXPs and facilities. In this paper, we perform an 
in-depth analysis of the PeeringDB data to gain an understanding of the 
public and private peering ecosystems in the five regions of the world 
(i.e., North America, Europe, Asia Pacific, Latin America, and Africa). 
We study how IXPs, facilities, and peering networks are distributed 
across the five regions. We also investigate how distribution of network 
business type, peering policy, and traffic level varies across the five 
regions. Our analysis provides a snapshot of the current state of the 
peering ecosystems in the five regions of the world and reveals the 
similarities and differences between these peering ecosystems.
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