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Anritsu Announces 5G Standalone NEMs’ vTAP Support on MasterClaw for Encrypted Traffic Monitoring


Copenhagen, Denmark, January 31, 2022 - Anritsu is pleased to announce the availability of Encrypted Traffic Monitoring from Network Functions’ Virtual TAPs (Terminal Access Points) in the MasterClaw 5G Standalone (5G SA) Service Assurance solution, in cooperation with a major European Network Equipment Manufacturer (NEM).

This addition to MasterClaw’s capabilities provides visibility into a 5G Standalone (5G-SA) Core Network's natively encrypted traffic, specifically, into the sections deployed according to the 3GPP’s Service-Based Architecture.

“The 5G SA architecture brings many advantages, so Communication Service Providers are willing to deploy it as soon as possible in their live networks,” explains Angelo Baccarani, Senior Product Manager for Virtual Probes and Data Acquisition at Anritsu. “However, these advantages come at the expense of added complexity in monitoring interactions between the Network Functions (NFs). This makes it difficult to guarantee that the subscribers will get the best Quality of Experience. One challenge is the encrypted nature of the communications between the 5G Core Network Functions in Service-Based Architectures (SBA). Network monitoring is made difficult, if not impossible. Anritsu now provides a solution to address this.”

NEMs are meeting this challenge by providing Virtual TAPs, integrated with their Network Functions, capable of forwarding clear (not encrypted) HTTP2 traffic (also known as the L7-layer) from the Service-Based Interfaces (SBI) to 3rd-party probes for monitoring. Although the format and transport of such data are not yet standardized, such an approach is becoming widely accepted to solve the so-called 'SBI visibility problem'.

Anritsu now provides a software option in its physical or virtual probe (MPA, Multi-Protocol Analyzer) to ingest L7-layer traffic into the MasterClaw Service Assurance solution for 5G. It will correlate with all the other protocol procedures visible on non-encrypted interfaces (Point-to-Point, Access, or Edge), giving an end-to-end consolidated view of the subscribers’ activity. 

Anritsu looks forward to working with its current customers, new customers, and partners that are planning or deploying a 5G SA Core based on Service Based Architecture, to help them maintain deep visibility into their networks.

About Anritsu
Anritsu Corporation (, a global provider of innovative communications test and measurement solutions for 125 years. Anritsu’s philosophy engages customers as true partners to help develop wireless, optical, microwave/RF, and digital solutions for R&D, manufacturing, installation, and maintenance applications, as well as multidimensional service assurance solutions for network monitoring and optimization. Anritsu also provides precision microwave/RF components, optical devices, and high-speed electrical devices for communication products and systems. The company develops advanced solutions for 5G, M2M, IoT, as well as other emerging and legacy wireline and wireless communication markets. With offices throughout the world, Anritsu has approximately 4,000 employees in over 90 countries.

To learn more visit and follow Anritsu on Facebook, LinkedIn, Twitter, and YouTube.

For further information, please contact: 

Matthew Twomey
Product Marketing Lead Service Assurance
Anritsu A/S
Tel: +353 86 1712842
Email: Matthew.Twomey(ATMARK)
Suzy Kenyon
Account Director
Napier Partnership Limited
Tel: +44 (0) 1243 531123
Email: suzy(ATMARK)

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