Banner image

Network Operations

All articles

email

Two Providers, a Stubborn Plateau and a Very Long Tail: Email in the Tranco Top-1M

Author image
Artem Berezin

7 min read

Ten years of DNS measurements reveal three trends across the Internet's most popular domains: email continues to consolidate around two providers, DMARC enforcement has hit a plateau, and a surprisingly large long tail of infrastructure defies easy classification.

Article tags:

154 Please read the article before liking.
4
ARP retirement cake

What's ARP Got to Do with It?

Author image
Remco van Mook

9 min read

It's only ARP. It works. So how much can it really matter? The answer lies beyond ARP itself, in the IPv4 layer cake that grew around it over four decades. The IPv4 internet is not going away in bounded time, and nobody should pretend otherwise.

Article tags:

63 Please read the article before liking.
6
Bangladesh outage

Inside a Shutdown: BGP Evidence from an Operator Who Was There

Author image
Md.Kamruzzaman Khan

18 min read

When Bangladesh vanished from the global routing table in July 2024, public routing data captured the event as it unfolded. Drawing on first-hand observations from inside one affected network, this article explores what that data can and cannot tell us.

Article tags:

32 Please read the article before liking.
4
four missing pieces

Beyond Origin Validation: Four Classes of Routing Attack Nobody Is Validating

Author image
Antonio Prado

8 min read

RPKI has made real progress against prefix hijacking. But when you map every known class of BGP attack against the defences that exist, four of them turn out to sit entirely outside cryptographic validation: handled with local filters, static thresholds and reactive response.

Article tags:

148 Please read the article before liking.
1
tiny rpki servers

Who's Running All Those Tiny RPKI Servers?

Author image
Ties Dirksen

18 min read

Who runs the hidden infrastructure behind secure Internet routing? An internship report from SIDN Labs looks beyond the RIRs at the independently operated RPKI publication servers helping to secure BGP.

Article tags:

30 Please read the article before liking.
1
commons test

Many Sovereignties, One Internet

Author image
Hisham Ibrahim

10 min read

Digital sovereignty is not simply good or bad. The commons test offers a practical framework for assessing whether different strategies expand choice, preserve interoperability, strengthen resilience and support meaningful participation, or create new dependencies and chokepoints.

Article tags:

27 Please read the article before liking.
0
sealions arping

A Farewell to ARPs: IPv4 Service on IPv6-Only Networks

Author image
Remco van Mook

9 min read

IPv6-only networks often still depend on IPv4 subnets and ARP. This article introduces an IETF proposal to eliminate both, allowing IPv4 to operate as a service over IPv6-only infrastructure without translation or tunnelling.

Article tags:

97 Please read the article before liking.
9
A pair of birds common in the Vienna region facing each other while sitting on a branch.

Birds of a Feather at IETF 126 Vienna

Author image
Greg Wood

5 min read

The IETF 126 Vienna meeting takes place 18–24 July 2026. As at every IETF meeting, alongside the established Working Groups there will be a handful of Birds-of-a-Feather (BoF) sessions - and these are often the most interesting place to watch where Internet standards work is heading next.

Article tags:

31 Please read the article before liking.
0
internet physical traffic

When Internet Traffic Becomes a Physical Event

Author image
Flavio Luciani

8 min read

Why do live sports, ticket sales, and public service launches sometimes resemble DDoS attacks? This article explores how synchronised user behaviour turns Internet traffic into a physical phenomenon that places real pressure on network infrastructure.

Article tags:

52 Please read the article before liking.
3
NCC Days Baltics Group Photo

RIPE NCC Days Baltics: Insights into Regional Resilience

Author image
Kjerstin Burdiek

14 min read

On 3-4 June 2026, we convened in Riga, Latvia for RIPE NCC Days Baltics. 76 participants from nine countries participated in sessions covering important topics in network operations, with a special focus on resilience for a region that has seen repeated network disruptions in recent years.

Article tags:

39 Please read the article before liking.
0

Showing 984 article(s)