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LF Networking Announces L3AF Release 2.1.0

LF Networking released L3AF 2.1, packed with new features designed to enhance performance, reliability, and flexibility for modern network operations. 

L3AF, a project hosted under LF Networking, is a provider of eBPF-based networking solutions, providing advanced tools for network observability, traffic management, and performance optimization.

This release continues the mission to provide open solutions in eBPF-based networking, now with improved support for cloud native environments, increased observability, and streamlined operational upgrades.

"As we continue to see eBPF emerge as a transformative technology for observability and networking, projects like L3AF play a critical role in pushing the boundaries of what's possible in modern infrastructures," said Arpit Joshipura, GM, Networking, Edge and IoT at the Linux Foundation. "The new features in L3AF 2.1—especially its support for containers and BPF CO-RE—underscore its relevance for cloud native ecosystems and the rapidly growing demand for portable, scalable networking solutions."

"This release is a significant milestone for L3AF and our community," said Patrick Moroney, member of the L3AF Technical Steering Committee. "The introduction of graceful restart and advanced observability features such as kprobes and tracepoints enhances our operational resilience and monitoring capabilities, while container support marks a crucial step toward cloud-native integration. We're excited to see how these new features will help users optimize their networks in real-world scenarios."

Key Highlights of L3AF v2.1:

  • L3AF 2.1 introduces Graceful Restart functionality, allowing seamless upgrades of the L3AF control plane without impacting any running eBPF programs in the data plane.
  • Container Support for l3afd: L3AF can now run within a container, equipped to operate in cloud native environments, improving orchestration and scalability for users leveraging cloud-native platforms.
  • BPF CO-RE in the eBPF Package Repository: L3AF 2.1 now supports BPF CO-RE, enabling portable BPF applications that run across different Linux kernels without modifications.
  • Support for KProbes and Tracepoints: Enhanced observability with support for kprobes and tracepoints, providing deeper kernel-level insights for better eBPF troubleshooting.
  • Dynamically add programs to new interfaces: L3AF 2.1 allows dynamic program attachment to new interfaces, benefiting complex network environments like multi-VM hypervisors.
  • Alternative traffic management options: L3AF now supports attaching eBPF programs to HTB qdisc hooks for refined traffic shaping and resource allocation.
  • Enhanced Logging and Storage for Easier Debugging: Improved logging with local filesystem storage simplifies debugging, accelerates issue resolution, and supports integration with centralized log analysis systems for better observability.
  • L3AF Goes to Dockerhub: L3AF is now available on Docker Hub, making deployment easier within containerized environments for streamlined DevOps integration.

    This release opens the door for improved cloud native integration, zero-downtime upgrades, and expanded monitoring capabilities, making it easier for enterprises to manage and optimize their network infrastructure.

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LF Networking Announces L3AF Release 2.1.0

LF Networking released L3AF 2.1, packed with new features designed to enhance performance, reliability, and flexibility for modern network operations. 

L3AF, a project hosted under LF Networking, is a provider of eBPF-based networking solutions, providing advanced tools for network observability, traffic management, and performance optimization.

This release continues the mission to provide open solutions in eBPF-based networking, now with improved support for cloud native environments, increased observability, and streamlined operational upgrades.

"As we continue to see eBPF emerge as a transformative technology for observability and networking, projects like L3AF play a critical role in pushing the boundaries of what's possible in modern infrastructures," said Arpit Joshipura, GM, Networking, Edge and IoT at the Linux Foundation. "The new features in L3AF 2.1—especially its support for containers and BPF CO-RE—underscore its relevance for cloud native ecosystems and the rapidly growing demand for portable, scalable networking solutions."

"This release is a significant milestone for L3AF and our community," said Patrick Moroney, member of the L3AF Technical Steering Committee. "The introduction of graceful restart and advanced observability features such as kprobes and tracepoints enhances our operational resilience and monitoring capabilities, while container support marks a crucial step toward cloud-native integration. We're excited to see how these new features will help users optimize their networks in real-world scenarios."

Key Highlights of L3AF v2.1:

  • L3AF 2.1 introduces Graceful Restart functionality, allowing seamless upgrades of the L3AF control plane without impacting any running eBPF programs in the data plane.
  • Container Support for l3afd: L3AF can now run within a container, equipped to operate in cloud native environments, improving orchestration and scalability for users leveraging cloud-native platforms.
  • BPF CO-RE in the eBPF Package Repository: L3AF 2.1 now supports BPF CO-RE, enabling portable BPF applications that run across different Linux kernels without modifications.
  • Support for KProbes and Tracepoints: Enhanced observability with support for kprobes and tracepoints, providing deeper kernel-level insights for better eBPF troubleshooting.
  • Dynamically add programs to new interfaces: L3AF 2.1 allows dynamic program attachment to new interfaces, benefiting complex network environments like multi-VM hypervisors.
  • Alternative traffic management options: L3AF now supports attaching eBPF programs to HTB qdisc hooks for refined traffic shaping and resource allocation.
  • Enhanced Logging and Storage for Easier Debugging: Improved logging with local filesystem storage simplifies debugging, accelerates issue resolution, and supports integration with centralized log analysis systems for better observability.
  • L3AF Goes to Dockerhub: L3AF is now available on Docker Hub, making deployment easier within containerized environments for streamlined DevOps integration.

    This release opens the door for improved cloud native integration, zero-downtime upgrades, and expanded monitoring capabilities, making it easier for enterprises to manage and optimize their network infrastructure.

The Latest

According to Auvik's 2025 IT Trends Report, 60% of IT professionals feel at least moderately burned out on the job, with 43% stating that their workload is contributing to work stress. At the same time, many IT professionals are naming AI and machine learning as key areas they'd most like to upskill ...

Businesses that face downtime or outages risk financial and reputational damage, as well as reducing partner, shareholder, and customer trust. One of the major challenges that enterprises face is implementing a robust business continuity plan. What's the solution? The answer may lie in disaster recovery tactics such as truly immutable storage and regular disaster recovery testing ...

IT spending is expected to jump nearly 10% in 2025, and organizations are now facing pressure to manage costs without slowing down critical functions like observability. To meet the challenge, leaders are turning to smarter, more cost effective business strategies. Enter stage right: OpenTelemetry, the missing piece of the puzzle that is no longer just an option but rather a strategic advantage ...

Amidst the threat of cyberhacks and data breaches, companies install several security measures to keep their business safely afloat. These measures aim to protect businesses, employees, and crucial data. Yet, employees perceive them as burdensome. Frustrated with complex logins, slow access, and constant security checks, workers decide to completely bypass all security set-ups ...

Image
Cloudbrink's Personal SASE services provide last-mile acceleration and reduction in latency

In MEAN TIME TO INSIGHT Episode 13, Shamus McGillicuddy, VP of Research, Network Infrastructure and Operations, at EMA discusses hybrid multi-cloud networking strategy ... 

In high-traffic environments, the sheer volume and unpredictable nature of network incidents can quickly overwhelm even the most skilled teams, hindering their ability to react swiftly and effectively, potentially impacting service availability and overall business performance. This is where closed-loop remediation comes into the picture: an IT management concept designed to address the escalating complexity of modern networks ...

In 2025, enterprise workflows are undergoing a seismic shift. Propelled by breakthroughs in generative AI (GenAI), large language models (LLMs), and natural language processing (NLP), a new paradigm is emerging — agentic AI. This technology is not just automating tasks; it's reimagining how organizations make decisions, engage customers, and operate at scale ...

In the early days of the cloud revolution, business leaders perceived cloud services as a means of sidelining IT organizations. IT was too slow, too expensive, or incapable of supporting new technologies. With a team of developers, line of business managers could deploy new applications and services in the cloud. IT has been fighting to retake control ever since. Today, IT is back in the driver's seat, according to new research by Enterprise Management Associates (EMA) ...

In today's fast-paced and increasingly complex network environments, Network Operations Centers (NOCs) are the backbone of ensuring continuous uptime, smooth service delivery, and rapid issue resolution. However, the challenges faced by NOC teams are only growing. In a recent study, 78% state network complexity has grown significantly over the last few years while 84% regularly learn about network issues from users. It is imperative we adopt a new approach to managing today's network experiences ...

Image
Broadcom

From growing reliance on FinOps teams to the increasing attention on artificial intelligence (AI), and software licensing, the Flexera 2025 State of the Cloud Report digs into how organizations are improving cloud spend efficiency, while tackling the complexities of emerging technologies ...