Rohde & Schwarz reveals future-proof OEM deep packet inspection engine for encrypted traffic visibility

DPI engine R&S®PACE 2 uses advanced AI-based techniques including machine learning and deep learning to deliver real-time insights into encrypted traffic for networking and cybersecurity solutions.

Leipzig, Germany April 13, 2022 today, ipoque, a Rohde & Schwarz company and an industry-leading provider of OEM deep packet inspection (DPI) software, announced a major enhancement of its AI-powered DPI engine R&S®PACE 2. The DPI engine now leverages machine learning and deep learning methodologies that deliver superior visibility of encrypted traffic and mitigate the loss of traffic visibility that is common with traditional DPI methodologies. With its new ML-based encrypted traffic analytics capabilities, ipoque offers a future-proof DPI engine for networking and cybersecurity solutions unlike any other DPI library on the market.

Over the past years, the use of protocols such as SSL, TLS, SSH, PGP and IPsec in encrypted applications saw a steady rise. “Encryption has benefited organizations in terms of end-to-end secure communications. However, from the perspective of traffic management, it has created large visibility gaps in the network,” said Dr. Martin Mieth, VP Engineering at ipoque. “A rising number of encrypted attacks on today’s networks indicates the need for traffic monitoring and inspection technologies that are more advanced to detect threats hidden in those encrypted flows.”

R&S®PACE 2 deploys encrypted traffic intelligence (ETI), a methodology that combines machine learning (ML), deep learning (DL) and high-dimensional data analysis with conventional DPI methods to inspect traffic that is encrypted, anonymized and obfuscated. ETI involves the use of advanced ML algorithms for traffic detection and DL-powered layered processing of data to extract AI features upon which such algorithms are built. These algorithms are applied to data flows in the network to deliver traffic awareness, revealing not only encrypted traffic but also traffic through VPNs/proxies and obfuscated traffic based on methods like randomization, tunneling and mimicry. It combines more than 1,000 features including statistical and time-series features in addition to packet-level features, resulting in very high classification accuracy and overall precision.

Apart from ML and DL, ETI also deploys other advanced DPI methods including statistical/behavioral analysis and heuristics for fine-grained traffic analysis. This enables R&S®PACE 2 to equip network management and cybersecurity solutions such as next-gen firewalls, DDoS prevention systems, SASE, CASBs and NAC with granular insights on malicious and anomalous traffic patterns, identifying source applications and protocols in real time.

“With the introduction of the latest encryption techniques such as TLS 1.3, TLS 1.3 0-RTT, ESNI, ECH, DNS over TLS and DNS over HTTPS, threats are expected to become more evasive, opening up new vulnerabilities across networks which are still reliant on legacy tools,” Dr. Mieth said. “R&S®PACE 2 addresses such susceptibilities via a future-proof DPI technology that boasts the highest detection accuracy rates with fast performance and high-capacity processing, making it the perfect solution for networks that are continuously evolving and expanding.”

R&S®PACE 2 is an advanced OEM protocol and application classification engine based on DPI technology. The DPI engine can be easily integrated into networking and cybersecurity solutions to gain full IP network traffic visibility up to layer 7 and beyond. Weekly signature updates combined with continuous performance and reliability testing ensure that R&S®PACE 2 offers the highest traffic detection rate on the market. By embedding R&S®PACE 2, networking and cybersecurity solution providers can keep up with the rapid growth of IP traffic rates, accelerate time to market, save development costs and concentrate on their core competencies.

The AI-powered DPI engine R&S®PACE 2 will be on display at the RSA Conference taking place on June 6-9 at Moscone Center, North Expo at the Rohde & Schwarz booth 6379. A virtual product demo is also available upon request.

Follow the link for more information in

Our brochure "Encrypted traffic intelligence for network traffic analysis" and our research report "Deep packet inspection and encrypted traffic visibility for IP networks" provide more detailed information on the relevance of DPI end encrypted traffic visibily.

Contact for press inquiries:

Christine Lorenz, phone: +1 503-523-7440, email:


ipoque, a Rohde & Schwarz company, is a global leader in network analytics software for the communications industry. We leverage our deep domain expertise to create software solutions that empower customers to transform data into intelligence. Find out more under

Rohde & Schwarz

The Rohde & Schwarz technology group is among the trailblazers when it comes to paving the way for a safer and connected world with its leading solutions in test & measurement, technology systems, and networks & cybersecurity. Founded more than 85 years ago, the group is a reliable partner for industry and government customers around the globe. On June 30, 2021, Rohde & Schwarz had around 13,000 employees worldwide. The independent group achieved a net revenue of EUR 2.28 billion in the 2020/2021 fiscal year (July to June). The company is headquartered in Munich, Germany.

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