OTBR agent- Multiple partition issue

[Sunidhi Dixit]

Hello Community,

Query-1

I am using the K32W061 module flashed with RCP on mikrobus and using the otbr-agent host side to form an open-thread network with a specific dataset that I have already hardcoded in the otbr-agent. I am able to get the thread interface up and everything works fine.

But sometimes I can see the end device(K32W061 flashed with the hybrid->reed example) gets the leader role and even in the scan I can't see my network though I verified on the host side from cli the interface was up and the state was "leader".

What can be the possible reasons?

Query-2
Also, one issue is there are multiple partitions gets created after some time how I can merge the different partitions.
Is there any way we can resist the end device taking the leader role? I want the end devices to be router eligible to take benefit of long-range and better connectivity but do not want the end device to become the leader.


I strictly require the K32W061 host side to be the only leader and forcefully want all the end devices to join the network (the details of which I have provided out-of-band).

If anyone can share some knowledge on partitions or some previous experiences related to queries or some other resource that can be helpful. Please do share.

Thanks in advance!

[Sunidhi Dixit]

Getting these when trying to attach a standard ftd device with the host acting as leader
an 28 13:48:27 [7650]: [INFO]-CORE----: Notifier: StateChanged (0x00000c00) [Child+ Child-]
Jan 28 13:48:27 [7650]: [WARN]-PLAT----: Handle transmit done failed: NoAck
Jan 28 13:48:27 [7650]: [INFO]-MAC-----: Frame tx attempt 4/4 failed, error:NoAck, len:126, seqnum:109, type:Data, src:1a40a5d10f93c23a, dst:s
Jan 28 13:48:27 [7650]: [NOTE]-MAC-----: Failed to send IPv6 UDP msg, len:202, chksum:c867, to:ae699923c0626587, sec:yes, error:NoAck, prio:nt
Jan 28 13:48:27 [7650]: [NOTE]-MAC-----:     src:[fe80:0:0:0:1840:a5d1:f93:c23a]:19788
Jan 28 13:48:27 [7650]: [NOTE]-MAC-----:     dst:[fe80:0:0:0:ac69:9923:c062:6587]:19788
Jan 28 13:48:30 [7650]: [INFO]-MAC-----: Received IPv6 UDP msg, len:84, chksum:2ea7, from:ae699923c0626587, sec:no, prio:net, rss:-95.0
Jan 28 13:48:30 [7650]: [INFO]-MAC-----:     src:[fe80:0:0:0:ac69:9923:c062:6587]:19788
Jan 28 13:48:30 [7650]: [INFO]-MAC-----:     dst:[ff02:0:0:0:0:0:0:2]:19788
Jan 28 13:48:30 [7650]: [INFO]-MLE-----: Receive Parent Request (fe80:0:0:0:ac69:9923:c062:6587)
Jan 28 13:48:30 [7650]: [INFO]-MLE-----: Delay Parent Response (fe80:0:0:0:ac69:9923:c062:6587)
Jan 28 13:48:31 [7650]: [INFO]-MLE-----: Send delayed message (fe80:0:0:0:ac69:9923:c062:6587)
Jan 28 13:48:31 [7650]: [WARN]-PLAT----: Handle transmit done failed: NoAck

Please find the full logs attached

[Sunidhi Dixit]

Also I have came across the following apis-
otThreadBecomeLeader
otThreadSetLocalLeaderWeight
otThreadSetLocalLeaderPartitionId

So I was thinking if I can resolve my issue in the following way-

I am planning to set the highest local leader weight for my host device and the minimum for end device.

Also can I assign a specific partitionid to all end device and host so that only one partition exists?

Also how the weight is prioritize what weight value i can assign to the leader so it never become child?

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[Jonathan Hui]

This sounds like there is an issue with the radio driver and it is having difficulty sending and/or receiving IEEE 802.15.4 frames.

You can use an IEEE 802.15.4 sniffer to verify whether the device is sending IEEE 802.15.4 frames.

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Jonathan Hui