contiki-os/contiki — pull request #910 by laurentderu (2014-12-16 08:17:42+00:00)
Title: Allow disabling of DIO suppression as required by RFC

The special value 0 of DIO Redundancy means that DIO suppression mechanism is disabled instead of triggered immediately as currently done.

In RPL, when k has the value
of 0x00, this is to be treated as a redundancy constant of
infinity in RPL, i.e., Trickle never suppresses messages.