The bridge between devices and the network.
WHAT A GATEWAY DOES
Connects to local devices Translates protocols Aggregates and filters Buffers during outages Forwards to the platform Distributes commands and updates
WHAT MAKES IT CRITICAL
Every device behind it depends on it.
WHAT THAT DEMANDS
Higher reliability than the devices themselves.
WHAT TO IMPLEMENT
Automatic restart on failure Persistent buffering Recovery from corrupted state Remote management
WHAT LOCAL PROCESSING AT THE GATEWAY PROVIDES
Decisions without the network Reduced transmission Response times the network could not meet
WHAT TO DECIDE LOCALLY
Anything time-critical, and anything that must work offline.
WHAT STORAGE SIZING MUST CONSIDER
Total data from every device, for the longest expected outage.
WHAT TO MONITOR
Devices connected, against expected Buffer depth Forwarding success Resource usage
WHAT DEVICE COUNT DROPPING INDICATES
A local problem, affecting several devices.
WHAT TO PROVIDE
A local interface for on-site diagnosis.
WHY
The gateway may be the only thing reachable when the network is down.
WHAT TO SECURE
The gateway especially, since it holds credentials and reaches devices.
