Banner image

Network Operations

Latest articles

Server racks in a data center

Operating a Data Center with a Small Team: Engineering Lessons from Central Asia

Author image
Furug Rasuli

10 min read

Managing ~600 infrastructure devices with a three-person team demands careful design choices. Based on experience in Central Asia, this article examines how standardisation, observability, and operational discipline support reliability at scale.

Article tags:

13 Please read the article before liking.
0
ott-apps

Beyond the Network View: DNS-Driven Application Visibility

Author image
Danny Lachos

6 min read

Network operators often lack visibility into which applications drive their traffic. We present an open-source DNS-based correlation method that enriches NetFlow and BGP data with application and CDN information. This enables a shift from a network-centric to an application-oriented view of traffic.

Article tags:

40 Please read the article before liking.
0
internal bgp

When iBGP Full Mesh Is Actually Unnecessary

Author image
José Mª Rivadeneyra

9 min read

A common misconception is that iBGP requires a full mesh or alternatives such as route reflectors. In reality, full mesh is not a protocol requirement, but a design choice that may be unnecessary and even undesirable in stub ASes and small ISPs.

Article tags:

24 Please read the article before liking.
4
break_loop_cover

Make This One Change to Prevent Routing Loops in Your Network

Author image
Maynard Koch

5 min read

Routing loops can trap packets between routers, preventing them from reaching their destination. In some cases, routers even duplicate looping packets, amplifying traffic and threatening Internet stability. We look at how this happens and how operators can prevent it.

Article tags:

114 Please read the article before liking.
0

All articles

Header-world-map-with-global-network

RootViz: New Root DNS Reachability Dashboard

Author image
Giovane Moura

6 min read

In this guest post, the team at SIDN Labs introduce a new dashboard built on RIPE Atlas data that lets the community visualise real-time measurement results and explore how probes reach the Internet’s root DNS servers.

Article tags:

50 Please read the article before liking.
0
iStock-2166597964

Ukraine as a Laboratory of Internet Resilience

Author image
Eliza Rohotska

14 min read

Ukraine’s Internet has not collapsed under invasion - it has adapted. This article examines what that reveals about the concept of resilience in the context of Internet infrastructure and the people who keep the networks running.

Article tags:

169 Please read the article before liking.
0
server_green

When ToR Instability Collapses Cross-Rack Redundancy Without Breaching SLA

Author image
Ruslan Seyidov

7 min read

This article examines a two-rack deployment where ToR instability quietly collapsed redundancy while SLA metrics remained within bounds, revealing how service-level monitoring can mask structural risk.

Article tags:

28 Please read the article before liking.
0
dt_image

Testing IXP Configurations Without Breaking Production: A Digital Twin Approach

Author image
Tommaso Caiazzi

7 min read

Configuration mistakes at an IXP can have immediate impact. Building on the earlier IXP Digital Twin project, this article presents a new dashboard that enables operators to recreate production environments, validate routing state, and test member onboarding off production.

Article tags:

175 Please read the article before liking.
0
forward_hell_cover

Forward to Hell? On Misusing Transparent DNS Forwarders For Amplification Attacks

Author image
Maynard Koch

10 min read

DNS infrastructure is infamous for facilitating reflective amplification attacks. Countermeasures such as server shielding, access control, rate limiting and protocol restrictions have improved the situation, but DNS-based reflective amplification attacks persist. Focusing on the threat vector intr…

Article tags:

143 Please read the article before liking.
0
ixp_growth_global

Peering Market at a Glance: Trends, Transformations, and the Regional Dynamics of Internet Interconnection

Author image
Flavio Luciani

3 min read

Recent claims that IXPs "aren’t showing significant growth", that more interconnection is happening outside exchanges, and that peering can be more expensive than transit challenge long-standing assumptions about the role of IXPs. But do these claims hold up? A new paper from NAMEX explores the dat…

Article tags:

76 Please read the article before liking.
0

Showing 941 article(s)

Previous
1 2 3 ... 95
Next