# Network Notes TOPOLOGY All backbone traffic is broadcast over ender modems on the FNP channels: 6400 commands, discovery, heartbeats 6401 telemetry pushes 6402 nav pad / macro console input 6490 display wall tile data NODE STATES online - heartbeat within the last 3 intervals stale - silent for 3-6 intervals (chunk unloaded? congestion?) offline - silent for 6+ intervals ADDING A NODE 1. Install a computer + modem (ender modem for backbone reach). 2. Run the installer, then edit /factoryos/node.cfg - set a unique name, its role, its facility, and the shared token. 3. Reboot. The node announces itself; NODES app picks it up within one heartbeat. If a node stays offline but the computer runs: its chunk is probably unloaded. Install a chunk-loading anchor on critical machines.