Matter multi admin fails with nrf samples

[stlevkov]

Greetings,

I am trying to pair nRF52840 DK to second admin (controller) using the provided chip-tool and the switch app from the nrf samples.

Specs:

• nRF52840 DK                                                                                                       (DUT)
• nRF52840 Dongle (Radio Co-Processor)
• Raspberry Pi 4 (OpenThread Border Router)
• nRF Connect SDK v2.1.0
• Linux Chip-Tool x86 64
• Ubuntu 20.04 x86 64 VM Controller 1 (uart debug connected to nRF52840 DK) (C1)
• Ubuntu 20.04 x86 64 VM Controller 2                                                                    (C2)

Following the scenario for commissioning:

• C1: ./chip-tool-release pairing ble-thread 4369 hex:operational-data-set-here 20202021 3840     ,
  • Device commissioned successfully, visible in OpenThread Border Router, can be controlled by C1
• C1: ./chip-tool-debug pairing open-commissioning-window 4369 1 400 2000 3840
  • [1663682774.140445][29427:29432] CHIP:CTL: Successfully opened pairing window on the device
    [1663682774.140464][29427:29432] CHIP:CTL: Manual pairing code: [36434149637]
    [1663682774.140471][29427:29432] CHIP:CTL: SetupQRCode: [MT:4CT91AFN00A7NS7BR10]
• C2: ./chip-tool-debug pairing code 4444 36527152093                                                                    [timeout, unable to pair]
• C2: ./chip-tool-debug pairing onnetwork-long 4444 20202021 3840                                                [timeout, unable to pair]

Avahi is able to resolve the address.During the second pairing, both C2 and DUT are exchanging messages but fails to establish PASE.

Error which i received on chip-tool (C2):

[1663682901.400708][3380:3380] CHIP:TOO: Run command failure: ../../src/protocols/secure_channel/PASESession.cpp:245: CHIP Error 0x00000032: Timeout

Error which i received on nRF52840 (DUT):

E: 1565622 [SC]PASESession timed out while waiting for a response from the peer. Expected messa4
D: 1565632 [IN]SecureSession[0x20003788]: Released - Type:1 LSID:14348
E: 1565638 [SVR]Commissioning failed (attempt 1): 32

Expected scenario for DUT:

• Pair with ble-thread to join thread network
• opened commissioning window
• pair with onnetwork

Is there a multi admin (multi fabric) support in nrf samples?

Thanks in advance.

[stlevkov]

Hi,

I am unable to pair it using the ethernet or onnetwork, but using the qr-code, it is working fine.

I was placing an wrong code for which the device was brodcasting initially. After sending open-commissioning-window, the core is different and unique for this particular window. This was the reason for getting the error.

So far it is working fine to me i can continue with the integration.

[Marte Myrvold]

Hi,

That is great to hear!

I also heard back from the developers. You should use the --commissioner-name argument when commissioning to the second fabric. Without that the chip-tool will most likely attempt to commission to the first one again, which sounds like what you experienced. This has worked for the development team when testing recently:

./chip-tool pairing ble-thread 1 hex:<operational_dataset> 28073715 3654
./chip-tool administratorcommissioning open-basic-commissioning-window 300 1 0 --timedInteractionTimeoutMs 1000
./chip-tool pairing onnetwork 1 28073715 --commissioner-name beta

Best regards,

Marte