Completely turn off adapter

[Robert904]

Hi,

I want to put in place some redundancy on my zigbee network, and have 2 computers with an adapter on each of them.
The primary would be normally active, but if it fails, I would like to be able to activate zigbee2mqtt on the backup one (which would have a synchronized config and status) remotely or by script, and then of course go back to the normal situation when the primary start working again.

As only one coordinator is allowed on a network, I have to be sure when switching that the previous one stops completely sending messages on the network to avoid problems, but taking a capture it seems the adapter keep sending and interacting on the zigbee network to some extend even when zigbee2mqtt is manually stopped.

Is there a way to remotely ask the adapter to completely stop working, and starting again only when zigbee2mqtt restart ?

I use the CC2652RB with the last coordinator firmware, and I had the same behavior with a CC2531.

Thanks

[Robert904]

Looking into this after all this time, I actually found a very easy way...
It seems that after simply opening/closing the serial port again after zigbee2mqtt is stopped, the controller do not send packet any more...

So simply launching a command like
cat /dev/null >/dev/ttyUSB0
after stopping the service seems to do the trick for me !

Just to document my finding !