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Presentations

Watch conference talks and presentations about Retis to learn how it’s used in production environments and understand its capabilities.

Following a packet journey through the networking stack in OpenShift

Devconf.cz 2025 - Trace packet flows through complex OpenShift networking

Challenges and limitations of debugging increasingly complex virtualized networks

Netdev 0x19 2025 - Deep dive into debugging virtualized networks

Tracing packets in OVS: an update on Retis

Open vSwitch and OVN 2024 Fall Conference - Latest updates on OVS tracing

Tracing packets in the kernel OVS datapath

OVS/OVN 2023 Fall Conference - Learn about kernel datapath tracing

Tracing the Linux networking stack with Retis

Devconf.cz 2023 - Introduction to network stack tracing

Presentation Slides

OpenShift packet journey slides

Devconf.cz 2025 presentation slides

Virtualized networks debugging slides

Netdev 0x19 2025 presentation slides

Kernel OVS datapath slides

OVS/OVN 2023 presentation slides

Linux networking stack slides

Devconf.cz 2023 presentation slides

Blog Articles

Filtering packets from anywhere in the networking stack

Learn about Retis’s filtering concepts, expectations, and interactions for precise packet capture.

Dumping packets from anywhere in the networking stack

Discover how to use the pcap sub-command to inspect packets at post-processing time with tcpdump and Wireshark.

An update on packet drop reasons in Linux

Learn how to use Retis for packet drop inspection and debugging.

Community and Support

GitHub Repository

View source code, report issues, and contribute to Retis

Issue Tracker

Report bugs and request new features

Milestones

Check the development roadmap and planned features

Contributing Guide

Learn how to contribute to the Retis project
Retis is an open-source project maintained by the community. Contributions, bug reports, and feature requests are always welcome!
Retis builds upon and integrates with several key technologies in the Linux networking ecosystem:
  • eBPF - Extended Berkeley Packet Filter for efficient kernel tracing
  • Open vSwitch - Production-quality virtual switch implementation
  • tcpdump - Packet analyzer for network traffic inspection
  • Wireshark - Network protocol analyzer for detailed packet inspection

Build docs developers (and LLMs) love