Network Operations

Visibility of Prefix Lengths in IPv4 and IPv6

Devin Bayer

• 10 Oct 2010

• 6 min read

In this article we explore the relation between global network visibility as seen by the Routing Information Service (RIS) and the length of announced prefixes.

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9

Interesting Graph - IPv4 Unassigned

Mirjam Kühne

• 8 Oct 2010

• 4 min read

With the IPv4 address space nearing its end, we are closely monitoring the number of address not yet assigned or allocated. See below one way of measuring them.

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Background Radiation in IPv6

Mirjam Kühne

• 4 Oct 2010

• 17 min read

Geoff Huston investigated to what extent the IPv6 Internet is polluted by "background radiation". Find below some interesting results and observations.

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BGP Route Origin Validation - A follow-up

David Murray

• 22 Sep 2010

• 2 min read

In July 2010 we looked at the effects of BGP route origin validation on mis-announcements and hijackings. In the meantime, we did some research based on comments and questions received by the community. The findings are described in this follow-up article.

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IPv6 CPE Survey - Updated (September 2010)

Mirjam Kühne

• 15 Sep 2010

• 10 min read

Based on new information we received since the last publication, we updated the IPv6 CPE matrix. See the new version below.

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26

Phase out of Reply-Size Tester

Wolfgang Nagele

• 7 Sep 2010

• 1 min read

Back in December 2009 we released a tool with which you can test your DNS resolver for possible issues with a DNSSEC signed root zone. Now that the root zone has been signed in production since 15 July 2010 we will stop this service on Monday, 11 October 2010.

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DNS Clients Do Request DNSSEC Today

Daniel Karrenberg

• 6 Sep 2010

• 3 min read

After the DNS root zone was finally signed and a number of TLDs began signing their zones, we were curious to see how many clients actually request DNSSEC information. First we looked at our server that provides secondary service to several ccTLDs.

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RIPE NCC and Duke University BGP Experiment

Erik Romijn

• 31 Aug 2010

• 8 min read

On 27 August 2010, the RIPE NCC's Routing Information Service (RIS) was involved in an experiment using optional attributes in the Border Gateway Protocol (BGP). As a result of this experiment, a small, but significant percentage of global Internet traffic was disrupted for a period of about 30 min…

routing

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Interesting Graph - IPv6 Performance

Emile Aben

• 25 Aug 2010

• 2 min read

This graph shows IPv6 performance as measured to www.ripe.net. These measurements show performance of native IPv6 on average being very close to IPv4.

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RIPE NCC Validator for Resource Certification

Amanda Gowland

• 20 Aug 2010

• 6 min read

Resource certification can be used to help secure routing. The resource certification system is based on Public Key Infrastructure (PKI) principles. The RIPE NCC Validator for resource certification can help network operators make the necessary routing decisions. You can download the tool below.

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