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RAK LoRaWAN Industrial Gateway Configuration Guide
3.7
SD card Backup and packet recovery
Finally there is the functionality to buff packets on the SD card (provided one is inserted) in
case of LoRa Network Server outage. The stored packets will be forwarded 8 at a time
(FIFO), as soon as the connection is restored.
The red colored frames are the ones being pushed to the buffer as there is an outage. The
green colored ones are being redirected as the connection ahs been restored. Thus no
packets were lost, even though the backhaul connection was unavailable for a time.
Figure 29 |
Buffering and Pushing of packets in an outage