Welcome to netverify.fun

Network change verification (even for networks without specifications)

Networks routinely need changes to patch security holes, expand capacity, perform routine maintenance, and a myriad of other reasons. But every change is dangerous, and brings with i...

Making Networks Safe and Agile with Formal Methods and Programming Abstractions: Future Directions

For years, networks have been seen as hard to manage and hard to evolve. They are hard to manage because even small networks are complex, with multiple devices and protocols interacti...

Harnessing Formal Methods Beyond Routing Layer

Network verification is a mature field with an industrial presence developed to ensure networks and services are safe from configuration-related outages. However, researchers in this ...

Why don't we verify networks like other complex systems?

In recent weeks, I have been working with my colleagues on an update to our SDN book, including a fresh look at the future of SDN. We believe network verification will be an important...

The Practice of Network Verification in Alibaba’s Global WAN

Alibaba has a global scale infrastructure to support its various types of online services (e.g. e-commerce, cloud computing, e-payment, etc.), which have more than one billion users i...

Modular Verification in Compositional Network Architecture

In our first article on Compositional Network Architecture, we emphasized its value as a descriptive model. This article considers its uses as a prescriptive model of network architec...

Compositional Network Architecture

Compositional Network Architecture is a new descriptive model of networking, possibly the first since the “classic” Internet architecture of the late 1980s. You all know the classic a...

Network verification 2.0

The first generation of network verification research, or Network Verification 1.0, has been tremendously successful. It has produced a wide range of methods that enable strong guaran...

The Verification-Synthesis Spectrum

Toward Polynomial-Time Verification of Networks with Infinite State Spaces: An Automata-Theoretic Approach

With the increasing scale of communication networks, failures (e.g. link failures) are becoming the norm rather than theexception. Given the critical role such networks play for ourdi...