LWM2M amount of object instances limited

RE: LWM2M amount of object instances limited

Hakon — Wed, 03 May 2023 11:16:35 GMT

No, there is a feature request for this, but there is no progress.

RE: LWM2M amount of object instances limited

Louis — Mon, 01 May 2023 18:01:17 GMT

Any update on this? Changing CONFIG_LWM2M_COAP_BLOCK_SIZE still doesn't seem to apply to most operations.

RE: LWM2M amount of object instances limited

Hakon — Tue, 21 Sep 2021 15:26:10 GMT

[quote user="Paul Kajdewicz"]Can you say if this topic is somewhere on your roadmap already?[/quote]

There is an internal ticket for this, but there is no ETA yet.

RE: LWM2M amount of object instances limited

Paul Kajdewicz — Tue, 14 Sep 2021 14:49:40 GMT

Hey Hakon,

thanks for your answer.

So I get it right, that the block transfer holds only for *receiving* data Cloud2Device, right?

I have observed, that big opaque values get sent in smaller packets, when communication Cloud2Device. So in this direction it seems to work.

I then assume, that sending huge opaque data Device2Cloud, which are bigger than CONFIG_LWM2M_COAP_BLOCK_SIZE will also fail.

Can you say if this topic is somewhere on your roadmap already?

Best regards

RE: LWM2M amount of object instances limited

Hakon — Tue, 14 Sep 2021 13:06:03 GMT

Hello,

[quote user=""]Shouldn't it be possible to create a bigger registration message which is then sent over coap blockwise transfer to the server?[/quote]

No, this is not possible unfortunately. This is a limitation of the LwM2M implementation, block transfer is only supported for the firmware transfer. There is no easy fix for this w/o some major changes in the stack.