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Let Your Network Speak!#

KubeCon + CloudNativeCon Europe 2026 digest Program Adjacent pick 23–26 March 2026

Abstract Recording

Nadia Pinaeva, NVIDIA & Joel Takvorian, Red Hat

Play the recording: Let Your Network Speak!

  • Why: Targets a specific and familiar failure: with a non-trivial number of network policies in a cluster, telling why a connection was allowed or denied is genuinely hard. Existing tooling shows what happened, not the reason.
  • What: An observability approach where the agent receives and understands messages from the network explaining why a packet met its fate.
  • How: Demo walks the path from the Linux kernel to the netobserv GUI via OVS, OVN and OVN-Kubernetes.
  • Where applicable: OVN-Kubernetes specifically — the mechanism runs through the OVS/OVN stack, so this is not portable to other CNIs as-is. Directly useful if that is your datapath.