[Contiki-developers] LPP with high data rate

[Xiaozhou Ji <c9...@ms...>]

Hi all,

I'm now testing performance of RDC protocols (contikimac, cx-mac, lpp).

Interestingly, if I use Rime's broadcast/unicast with CSMA(MAC) + LPP(RDC) in a data rate greater than 2Hz, the queuebuf (debug on) reports "could not allocate a queuebuf" and LPP reports "null packet" in send_packet() function, after the sender successfully sends one packet.

Function for sending probe works well, it follows exact timeline.

My first guessing is LPP is not able to parse the packet form upper layer for sending and set the queue right.


Any idea how to fix it? Or has anyone seen this issue before? I've searched in this mailing list but this error is not mentioned.



Best Regards
Xiaozhou JI



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