About us

We build the tools that tell you what's really happening on your network.

What we do

Allegro Packets engineers purpose-built appliances for network performance monitoring, packet analysis and capture, troubleshooting, and incident investigation.

The Allegro Network Multimeter gives network teams packet-level visibility into what's really happening—helping them pinpoint root causes and resolve problems in minutes, not hours. By combining real-time and historical analysis with full-fidelity capture in one platform, Allegro Packets accelerates troubleshooting and investigation.

Designed, engineered, and fully supported by our development team, every Network Multimeter is backed directly by the experts who build it.

What makes us different

Speed is in our name—and in everything we build. Allegro means “fast,” and our Allegro Network Multimeters are engineered for high-performance packet analysis and capture that helps you troubleshoot faster.

From deployment to diagnosis, Allegro Packets helps network teams get answers quickly. Our appliances deploy in minutes, providing immediate visibility into live network performance while building a searchable history for retrospective analysis. Automated diagnostics help pinpoint packet loss, latency, errors, and other performance problems—so you can get from symptom to root cause faster. Our in-house and partner-provided training ensures you get the maximum value from your investment.

Why we do it

Networks underpin nearly every aspect of modern life—from healthcare and education to finance, manufacturing, and public safety. We're here to support the network engineers and administrators who keep them running.

We believe troubleshooting shouldn't be a long, frustrating process. By sharing our expertise and giving network teams the visibility they need to understand what's really happening, we help them solve problems faster, keep networks reliable, and spend less time fighting fires.

We stay close to our customers and listen to the people using our products every day. Their real-world challenges shape what we build—and there's nothing more rewarding than hearing that an Allegro Network Multimeter helped someone find and solve a difficult network problem.

Who we help

Our customers are the network engineers and administrators responsible for keeping networks reliable, fast, and secure—from single-site IT teams to service providers managing infrastructure across many locations. Our appliance family scales from branch offices to 400G data center backbones and virtual environments.

When something goes wrong, the Allegro Network Multimeter gives you packet-level visibility to quickly identify what’s causing the problem—from performance issues and outages to security incidents. And when everyone’s blaming the network, you have the evidence to know what’s really happening—and prove it.

From an idea in Leipzig to a global network analysis company

Managing Directors Katrin Pflugfelder and Klaus Degner look back on Allegro Packets’ journey from a 2014 start-up to an established network analysis company serving customers worldwide.

Klaus Degner’s interest in computers and networks started early. Long before online tutorials made learning to code easy, he taught himself Pascal and C using the only programming book he could find at his local library. Organizing LAN parties gave him hands-on experience building and managing networks, and he continued developing his networking expertise at university. He went on to create his first networking product, start his first company, and successfully build and exit two technology businesses.

In 2014, Klaus joined a new network technology project that would eventually become Allegro Packets. Katrin Pflugfelder, a mathematician by training who began her career as a programmer, saw the potential as well. Combining Klaus’s networking and entrepreneurial experience with Katrin’s technical background and organizational and strategic expertise, they set out to turn the project into a company.

Managing directors Katrin Pflugfelder and Klaus Degner

Together with experienced software architects Georg Müller, Martin Weiser, and Dr. Ralf Hoffmann, we founded Allegro Packets to develop high-performance network software. “We understood data processing and how to move data through networks extremely quickly,” Klaus recalls. “So we built a packet-processing engine capable of processing and forwarding packets incredibly fast.”

That technology also inspired our name. “Allegro is a musical term meaning fast, while ‘packets’ describes the data our technology processes,” Katrin explains. “Together, Allegro Packets captures the idea at the heart of what we built: fast packet processing.”

Our original business model was to license the software to organizations that would integrate it into their own products and projects. The technology worked well, and the business generated enough revenue to sustain us—but it didn’t grow the way we had hoped. It became clear that to make Allegro Packets succeed, we needed a different approach.

Searching for a new direction

With our packet-processing technology in hand, we began looking for other ways to put it to work. We visited trade shows and explored different applications, but nothing we found matched what we believed the technology could do.

That led us to network troubleshooting. We evaluated the appliances and software available for analyzing wired networks and saw an opportunity. Many were complex, expensive, slow, or limited in what they could do. We believed we could build something better: a device that would let network administrators simply “look inside the wire” and see what was really happening.

We designed the product around how we would want to troubleshoot a network ourselves. It needed to be fast, easy to deploy and use, powerful enough to solve difficult problems, and affordable enough to be accessible to more organizations. Rather than follow the approach of existing products, we built the tool we wanted to use ourselves. That thinking became our guiding principle: Rethink Troubleshooting.

Don't other network troubleshooting tools do this?

It's a fair question — until you've spent a few minutes with an Allegro Network Multimeter. Ask the network engineers who have, and you'll hear something closer to: 'Finally, a tool built by someone who understands what I actually need.'

Before appliances like ours existed, network engineers only had two real options. Pay a six-figure price tag for an enterprise monitoring platform — if the budget even existed. Or troubleshoot by trial and error: shut down a service, push an update, restart, and hope the problem was actually fixed. Failing that, there was always connecting a laptop, firing up Wireshark, and combing through a capture file that could easily hold millions of packets — without knowing what you were even looking for.

That kind of troubleshooting is slow, exhausting, and hard on the experts and the users waiting on them. The Allegro Network Multimeter replaces the guesswork with packet-level truth, so your team can find the real problem in minutes, not days.

Listening to users of the Allegro Network Multimeter

Network engineers and administrators already have difficult jobs. They don't need another complex tool to learn and manage — they need answers when something goes wrong on the network. That's why we built the Allegro Network Multimeter around what our users tell us they need: an easier way to see what's happening, find the cause, and resolve problems quickly.

Our customers have shaped the product from the beginning. We started with the portable Allegro 200. Customers asked for more ports, more memory, and higher data rates, so we built the Allegro 1000. As our customer base grew, so did their needs — and so did the Allegro Network Multimeter.

Today, our portfolio spans 1G to 400G, with appliances and storage options for networks of every scale. Every appliance runs the same software, engineered entirely by our team, with the same core capabilities across the range.

No tiered feature sets. No paying extra to unlock capabilities. Just the tools our customers need, built around how they actually work.

That's not by accident — it's what happens when you keep listening.

The Future of Allegro Packets

The Allegro Network Multimeter has been helping network engineers troubleshoot problems for years, and our focus hasn't changed: fast, affordable, purpose-built appliances that make network troubleshooting easier. Every release reflects what our customers tell us and what increasingly complex networks demand.

We're staying focused on troubleshooting and investing even more in it. As networks become more distributed, faster, and more critical to everyday operations, the need to understand what's really happening at the packet level only grows.

Allegro isn't trying to be your entire observability stack. We're the packet intelligence layer that makes the rest of it trustworthy. We provide the ground-truth evidence network teams need when other tools tell them something is wrong, but not why. Data networks now underpin the economies and wellbeing of entire nations, and the more we depend on them, the more indispensable a tool like the Allegro Network Multimeter becomes.

Our future is simple: keep giving network teams the packet-level visibility and evidence they need to understand problems, investigate incidents, and resolve them faster.