RPL (mesh routing) technology over 802.15.4 has been supported
from the beginning. Originally it was taken from Contiki OS
according to Zephyr network buffer management.
While developing sample RPL applications like
rpl_node, we fixed various issues in RPL base code. No new RPL
nor bug fixes from upstream Contiki have been merged after
Upstream Contiki has continued development and is now quite
Zephyr RPL implementation. For example Contiki supports
which Zephyr does not support.
There is a lot of re-engineering work going on in Zephyr
right now. Like network buffer changes and socket based
application level protocols.
Due to on-going efforts for network stack re-engineering, RPL
modifications. At our side, current priorities are are
supporting WPAN family of IoT enablers.
Therefore, we are seeking new maintainers and stakeholders to
RPL in Zephyr. If no new maintainers are found, the current
plan is to
deprecate RPL code in near future.
Thanks in advance,