Network Operations

Unsolicited Internet Traffic from Libya

Emile Aben

• 23 Mar 2011

• 7 min read

Amidst the recent political unrest in the Middle East, researchers have observed significant changes in Internet traffic and connectivity. In this article we tap into a previously unused source of data: unsolicited Internet traffic arriving from Libya. The traffic data we captured shows distinct c…

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6to4 - Why is it so Bad?

Emile Aben

• 21 Mar 2011

• 8 min read

In a previous article we measured that a large percentage of 6to4 connections fail. In this article we show our attempts to find out why these connections fail.

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3

Ensuring Registry Data Quality

Xavier Le Bris

• 8 Mar 2011

• 6 min read

In order to ensure accurate and up to date registration data, the RIPE NCC started the Registry Data Quality project in 2009. The article below describes this activity and the problems we found and how we fixed them.

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Network Complexity and How to Deal with it

Michael Behringer

• 1 Mar 2011

• 5 min read

This article, prompted by a panel discussion at the RIPE 61 Meeting, describes the most significant implications of network complexity and suggests ways to deal with it. This is a topic that requires more work and a lot of input from network operators. We hope you’ll work with us to advance this su…

routing

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First Impressions of Pollution in Two RIPE NCC Darknets

Manish Karir

• 21 Feb 2011

• 9 min read

We partnered with several Regional Internet Registries (RIRs), including the RIPE NCC, to examine what traffic is going to unallocated IP address ranges. In this particular case, we looked at traffic going to 5/8 and 37/8.

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Three Case Studies on the Egyptian Disconnection

Claudio Squarcella

• 15 Feb 2011

• 5 min read

Roma Tre University presents three analyses related to the recent events in Egypt, proving interesting behavior in relation to the observed disconnection. We use tools like BGPlay and iBGPlay, developed for the visualisation of BGP dynamics.

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The Shape of a BGP Update

Vasco Asturiano

• 14 Feb 2011

• 6 min read

What happens to BGP traffic when an announcement or withdrawal of an address prefix propagates through the Internet? See below some interesting graphs and observations.

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Visualizing the Egyptian Disconnection

Richard Barnes

• 30 Jan 2011

• 3 min read

In the routing graphs produced by the RIPE REX tool, we can get a different visualization of Egyptian networks falling off of the Internet, and observe some interesting phenomena.

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Live Egyptian Internet Incident Analysis

Devin Bayer

• 28 Jan 2011

• 1 min read

We have been using the prototype RIPEstat toolbox to analyse what happened to the Internet in Egypt.

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The Future of the IPv6 CPE Survey - More Input Needed

Marco Hogewoning

• 24 Jan 2011

• 4 min read

After 3 updates and a lot of progress on IPv6 in general, it is time to think about the next version of the IPv6 CPE survey. With an increased deployment of IPv6, we are seeking a way to make it easier for you to provide feedback and to present the data in a more structured way.

ipv6

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