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Cilium eBPF Host Routing

Open chasewilson opened this issue 1 year ago • 4 comments

GA ETA: Q2 2026

eBPF Host Routing is on the roadmap for Azure CNI Powered by Cilium. The feature will bypass the netfilter tables and upper host stack allowing for reduced latency in addition to higher TCP throughput.

chasewilson avatar Oct 09 '24 18:10 chasewilson

What does this mean?

paulgmiller avatar Oct 15 '24 22:10 paulgmiller

This feature should be parity with https://docs.cilium.io/en/stable/operations/performance/tuning/#ebpf-host-routing. Need to figure out migration path since this would bypass IP tables

sf-msft avatar Feb 18 '25 19:02 sf-msft

LSM BPF is needed for iptables validation xref: https://github.com/Azure/AKS/issues/3574

sf-msft avatar Jun 19 '25 20:06 sf-msft

https://learn.microsoft.com/en-us/azure/aks/how-to-enable-ebpf-host-routing

sf-msft avatar Dec 10 '25 16:12 sf-msft