I've reviewed draft-ietf-6tisch-minimal-19. Thank you to the authors and the WG for considering the input from my earlier reviews and careful revision of the document to address that input. In general, I think the document is now almost ready for publication. The major points from my review of -17 have been addressed. I do have a few minor points for the authors and WG to consider: Does the WG have consensus that IPv6 address selection, prefix advertisement, and the details of ND need not be addressed in this document? I don't see a default value for EB_PERIOD defined anywhere. Is such a definition needed? Section 5.2 requires implementation of RPL non-storing mode and recommends implementation of storing mode. How does a node know whether RPL is being used in non-storing or storing mode? - Ralph