Network Operations

RTT to New Delhi K-Root Instance from Atlas Probes

Connectivity to the K-Root Instance in Delhi

Emile Aben

• 20 Feb 2012

• 3 min read

As a follow-up to the previous article and prompted by a question in the mailing list, we looked into connectivity of one particular instance of K-root: the one located in Delhi. India.

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VisualK – Monitoring K-root in Near Real Time

Claudio Squarcella

• 17 Feb 2012

• 6 min read

VisualK is a new tool that allows to visualise the evolution of the service provided by the K-root name server. It can be used to monitor the status of K-root in near real-time.

dns
tools

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2

IPv4 Address Space Growth per Country

Emile Aben

• 6 Feb 2012

• 5 min read

With the depletion of the IPv4 free pool in the APNIC region and the imminent IPv4 free pool run out in the RIPE NCC's service region, it is interesting to look at IPv4 allocation rates per country to see where free pool run out has and will have the most consequences, in terms of curtailing growth…

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IPv4 Allocation Statistics for 2011

Mirjam Kühne

• 3 Feb 2012

• 4 min read

2011 was an interesting year for IPv4. But did we see a big run on the remaining IPv4 address space? See some statistics and analysis below.

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ExaBGP - From BGP Route Injector to BGP Engine

Thomas Mangin

• 2 Feb 2012

• 3 min read

ExaBGP is an application providing engineers with a way to control BGP from servers. The program allows the injection, and reception, of arbitrary routes into a network, including IPv6 and FlowSpec. It is designed to be flexible and give its users the flexibility a normal BGP router cannot.

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RIPE Atlas & Anycast Instance Switches

Daniel Karrenberg

• 22 Dec 2011

• 6 min read

RIPE Atlas can now test packet flows from more than 1000 vantage points on the Internet. We took a quick look at anycast traffic to DNS root name servers. There is a lot of interesting signal in this data.

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One Day in the Life of RPKI

Matthias Wählisch

• 21 Dec 2011

• 6 min read

In this article, we report about a one-day measurement of the RPKI and BGP infrastructure.

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2

IP Address Space Covered by Certificates

Alex Band

• 20 Dec 2011

• 2 min read

Since the RIPE NCC launched its Resource Certification service, there is a steady increase in the number of prefixes covered by certificates.

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128.0.0.0/16 As Seen by RIPE Atlas

Daniel Karrenberg

• 12 Dec 2011

• 4 min read

RIPE Atlas provides a view of 128.0.0.0/16 from the data plane. Can packets actually get there and back? Please find the results in this article.

ipv4
atlas

1

The Curious Case of 128.0/16

Emile Aben

• 6 Dec 2011

• 5 min read

The prefix 128.0/16 is filtered in Juniper devices up to and including JUNOS software version 11.1. We looked at three ways to get a rough estimate on how much filtering of 128.0/16 is going on on the Internet.

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