Network
- Pi 4 (Tailscale IP: 100.120.38.37) ↔︎ RG40XXV (Tailscale IP:
100.119.202.114)
- Both on Tailscale 1.96.4 with Tailscale SSH enabled
- SSH:
ssh mehdifarah@relik-pi4 (Pi),
ssh root@100.119.202.114 (RG)
- No passwords, no sshpass, no ConnectTimeout gymnastics
- MagicDNS short hostnames not supported on RG (KNULLI limitation —
use IPs)
Probing Results (Verified)
- Ping Pi↔︎RG: 3–5ms steady state
- HTTP roundtrip RG→Pi: 16ms avg
- State fetch (36 nodes + 3 units): 18ms, 5.9KB payload
- Invoke (0.8s mock agent): 839ms total (agent dominates, not
wire)