APPLICATION INFRASTRUCTURE

Napatech Delivers Industry-Leading Data Center Capacity and Monitoring for 5G Packet Core Infrastructure

Napatech | February 19, 2022

Napatech the leading provider of programmable Smart Network Interface Cards (SmartNICs) used in telecom, cloud, enterprise, cybersecurity and financial applications worldwide, today announced the integration of 5G User Plane Function (UPF) offload within its Link-Inline™ software suite. This will enable communications service providers (CSPs) to maximize the number of users supported in an edge or core data center.

Unlike in most 4G networks based on purpose-built appliances, the 5G packet core is implemented as virtualized or cloud-native software running on servers located within edge and core data centers. As CSPs worldwide scale up the deployments of their 5G networks, they face strong financial pressure to maximize the number of users that can be supported on each server, whether individual subscribers or IoT devices, thereby minimizing the net cost-per-user.
Within 5G packet core software, the subsystem that represents the highest compute workload is the User Plane Function (UPF), which performs critical packet inspection, routing and forwarding functions associated with connecting user and device traffic from the Radio Access Network (RAN) to the Data Network (DN). General-purpose server CPUs aren't well suited to the performance and latency requirements of real-time packet processing, so CSPs and 5G core software vendors typically adopt solutions for offloading the UPF to accelerator cards that are optimized for executing such workloads.

Napatech addresses the key business challenges around packet core deployments through its new, integrated hardware/software solution that delivers industry-leading UPF performance. The solution comprises a fully offloaded UPF fast path implemented within the Link-Inline™ software stack, running on programmable PCI-Express (PCIe) SmartNICs available in configurations that support a total bandwidth of either 100Gbps (NT100 card) or 200Gbps (NT200 card). The UPF data path is implemented as a port-to-port inline or "hairpinned" architecture, which ensures that following initial setup all flows are processed on the SmartNIC with no need to pass traffic to and from the server CPU, maximizing the overall performance of the system.

Using a single 200Gbps NT200 SmartNIC to sustain 100Gbps of full duplex traffic, the Napatech UPF Offload solution processes up to 100 million concurrent flows, with a flow learning rate greater than 1.5 million flows per second. This results in a total throughput of up to 85 million packets per second on stateful connections and ensures full wire speed operation for typical packet sizes. In a representative use case analyzed by the company, the Napatech UPF offload solution enables CSPs to support seven times more users per server than with competing solutions.

"Napatech's UPF offload solution supports industry-standard Application Programming Interfaces (APIs) such as DPDK RTE_FLOWS, ensuring a straightforward integration with existing 5G core software, Similarly, full support for Kubernetes container orchestration ensures that the solution can be deployed within a standard cloud-native environment."

 Charlie Ashton, senior director of business development, Napatech

As an additional benefit for CSPs, Napatech's UPF offload solution enables them to improve the efficiency of their network monitoring systems. In a typical 5G network, multiple packet core instances are deployed at physical locations ranging from edge nodes to on-premise clouds to metro Points of Presence (PoPs) to telco data centers. CSPs, however, need a holistic, real-time view of network traffic trends to ensure Quality of Service (QoS) and proactively identify actual or potential problems.

Napatech addresses this monitoring challenge by implementing high-performance traffic mirroring and tunneling functions within the Link-Inline software running on its SmartNICs. Both "N3" (RAN to Core) and "N6" (Core to Data Network) traffic can be tunneled over a mirror feed and forwarded to a centralized monitoring system located at the Network Operations Center (NOC). This enables CSPs to implement an efficient, cost-effective network monitoring system that's centralized, rather than being forced to replicate individual monitoring appliances at many remote locations. It also ensures a cost-effective solution for implementing Lawful Intercept (LI) functions with zero packet loss.

"Napatech is addressing a critical industry challenge with its 5G UPF offload solution," said Roy Chua, founder and principal, AvidThink. "As deployments of both public and private 5G networks proliferate, CSPs are under increasing pressure to maximize the profitability of their services. Napatech's solution can enable them to maximize the efficiency of their packet core servers and network monitoring systems, contributing significantly to improving the ROI for their 5G infrastructure."


About Napatech
Napatech is the leading supplier of programmable FPGA-based SmartNIC solutions used in telecom, cloud, enterprise, cybersecurity and financial applications worldwide. Through commercial-grade software suites integrated with robust, high-performance hardware, Napatech accelerates telecom, networking and security workloads to deliver best-in-class system-level performance while maximizing the availability of server compute resources for running applications and services. Additional information is available at www.napatech.com.

Spotlight

THE DIGITAL infrastructure landscape is being redrawn, and we are the ones doing the drawing. As smartphones become ever more central to our lives; as we connect everything from our televisions – which are increasingly becoming devices whose primary purpose is to stream video from the likes of Netflix or Amazon Prime – to our fridges into the Internet of Things; and as the next wave of technological advancement promises cloud-connected autonomous cars and more besides, it is consumer behaviour driving surging demand for digital infrastructure.

Spotlight

THE DIGITAL infrastructure landscape is being redrawn, and we are the ones doing the drawing. As smartphones become ever more central to our lives; as we connect everything from our televisions – which are increasingly becoming devices whose primary purpose is to stream video from the likes of Netflix or Amazon Prime – to our fridges into the Internet of Things; and as the next wave of technological advancement promises cloud-connected autonomous cars and more besides, it is consumer behaviour driving surging demand for digital infrastructure.

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