Matter Binding after disconnecting OTBR

[jayveer]

I am working on Matter binding between two matter enabled thread devices where i have flashed the light bulb code in EVBT840 and light switch in nrf52840 kit

I am using Raspberry pi 4B as OTBR and commissioning is done using chip tool in linux pc. After commissioning both the devices in thread network and matter binding is done between both the device is done where when i press the switch in matter switch the matter bulb glows. So after the matter binding between both the matter devices when i disconnect the OTBR the communication between them till remain for around 2 mins where without OTBR i can control bulb with switch but after that the connection breaks.

So once commissioned and matter binded ,then removing the OTBR should the connection between them still remain or there is issue with my ecosystem ?

[Charlie]

Hi Jayveer,

How did you "disconnect the OTBR the communication between them"? Do you power off OTBR totally?

The two devices communicate through IPv6 network, and OTBR runs as a router when they are communicating in the same LAN, so they should not be able to communicate when OTBR is down.

Best regards,

Charlie

[jayveer]

Hey Charlie ,

Yes I disconnect the OTBR totally or you can also say I power off the OTBR.

So, from your above answer Can I 100% confirm that once BLE-Commissioning and Matter Binding done and then when the Two Matter End devices(NRF52840) communicate with each other and after that if we disconnect the OTBR then It will not communicate now.

Can you give me crisp and clear answer of that above explanation.

It is critical situation in project so please I want crisp and clear answer for that.

Your little bit of help will be very much appreciated.

Thanks,

Jayveer