TestMultinodeIPSec asserts:
- OVS DB on every node carries certificate/private_key/ca_cert pointers
and other_config:ipsec_encapsulation=true (what daemon.enableOVNIPSec
writes).
- ip xfrm state on every node has at least one AEAD SA in AES-GCM mode
(rfc4106(gcm(aes)) or gcm(aes)) within 90s.
- tcpdump catches ESP (ip proto 50) on the underlay (best-effort —
logged only; geneve may be idle during the 5s capture window).
Skips cleanly when the cluster was bootstrapped with --ipsec=false
(no ipsec_encapsulation key on first node).
Read-only over SSH; runs in the parallel bucket alongside the other
non-mutating multinode tests.