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Massimo Candela

11 Feb, 2014 12:06 PM
The Seismograph User Guide by Massimo Candela — last modified 17 Oct, 2016 08:56 AM

The Seismograph is an interactive RIPE Atlas tool that allows users to analyse and visualise ping measurements. Here we explain the tool's different features and how you can make the most of them.

Visualising DNS Issues with DNSMON by Massimo Candela — last modified 01 May, 2020 04:01 PM

This article is a summary of an academic paper, Visualization and Monitoring for the Identification and Analysis of DNS Issues, that was presented at the Tenth International Conference on Internet Monitoring and Protection in Brussels in June 2015.

Visualization and Monitoring for the Identification and Analysis of DNS Issues by Massimo Candela — last modified 07 Sep, 2015 02:39 PM

The user experience of an Internet service depends partly on the availability and speed of the Domain Name System (DNS). DNS operators continually need to identify and solve problems that can be located at the end user, a name server, or somewhere in between. In this paper, we show how DNSMON, a production service for measuring and comparing the availability and responsiveness of key name servers, correlates and visualizes different types of measurements collected by RIPE Atlas vantage points worldwide. DNSMON offers an interactive view, both historic and near real-time, at different levels of detail. It has successfully revealed and allowed analysis of many operational issues, including less obvious ones

New RIPE Atlas Tool: LatencyMON by Massimo Candela — last modified 13 May, 2019 09:20 AM

LatencyMON is a new RIPE Atlas web application that you can use to easily visualise and compare multiple latency trends collected by groups of RIPE Atlas probes.

Real-time BGP Visualisation with BGPlay by Massimo Candela — last modified 25 Apr, 2017 05:10 PM

Please read about this new milestone release of the popular BGPlay web application. It can now receive BGP messages using WebSocket and update the visualisation on the fly.

A Quick Look at the Attack on Dyn by Massimo Candela — last modified 01 Apr, 2019 09:43 AM

We used a number of RIPE NCC tools and data sets to take a quick look at the recent DDoS attack on Dyn’s infrastructure. We wanted to see if this could be found in the data produced by the RIPE Atlas community.

TraceMON: Network Debugging Made Easy by Massimo Candela — last modified 17 May, 2019 10:57 AM

TraceMON is a client-side tool for visualising network topology generated by traceroutes reaching one or more targets in a network. It provides a one-click access to a set of information useful during day to day operations.

Upstream Visibility: Monitor the Visibility of your Prefix by Massimo Candela — last modified 10 Oct, 2019 07:30 PM

Upstream Visibility is the new tool produced by the Computer Network Research Group of Roma Tre in collaboration with the RIPE NCC. It is a web application which proposes a concise way of visualising interdomain routing data of a specified prefix.

Big Data and Network Measurements at TMA 2018 by Massimo Candela — last modified 12 Jul, 2018 03:13 AM

The Network Traffic Measurement and Analysis Conference (TMA) took place in June in Vienna, Austria. A full week of events was scheduled - including a PhD school about Big Data on Monday and Tuesday, the TMA Experts Summit on Tuesday, and the main conference from Wednesday to Friday. Here's my summary of the week!

RIPE IPmap - What's Under the Hood? by Massimo Candela — last modified 28 Mar, 2019 02:47 PM

Some time ago we introduced RIPE IPmap. Now it’s time to take a look under the hood and see how the geolocation of Infrastructure IP addresses is done.

Easy BGP Monitoring with BGPalerter by Massimo Candela — last modified 28 Apr, 2020 03:12 PM

This is a brief tutorial that explains how to monitor BGP prefixes easily and effectively. For this purpose, we will use an open-source application named BGPalerter which is ready to go and requires almost no configuration. Currently, we use this solution at NTT, one of the largest global providers, on our tier-1 Global IP Network.