> On Jan 31, 2017, at 2:21 AM, Xavi Vilajosana Guillen <[email protected]> > wrote: > > Dear Ralph, > > thanks for your comments. Let me answer inline some of your questions: > > 2017-01-30 17:56 GMT+01:00 Ralph Droms <[email protected]>: >> 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? >> > The EB_PERIOD determines the join time and impacts energy consumption. The > value is a trade-off of this two elements according to the network > administrator, as shorter the EB period more energy is used but sooner the > nodes join the network. This number does not affect different vendor nodes > aiming to join the same network (in terms of inter-operability). For us this > is more a network policy, IMHO defining a default value would not fit most of > the cases.
Is it necessary for all devices in a network to use the same value EB_PERIOD? If so, how is that value communicated or configured in all devices? Could the document recommend a value? >> 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? >> > This is detected by the MOP field in the DIO. When a DIO is received the MOP > is checked. According to RF6550 > > Mode of Operation (MOP): The Mode of Operation (MOP) field identifies > the mode of operation of the RPL Instance as administratively > provisioned at and distributed by the DODAG root. All nodes > who join the DODAG must be able to honor the MOP in order to > fully participate as a router, or else they must only join as a > leaf. MOP is encoded as in the figure below: > Ah, ok, thanks. - Ralph > > >> - Ralph >> > > > regards, > Xavi > -- > Dr. Xavier Vilajosana > Wireless Networks Lab > Internet Interdisciplinary Institute (IN3) > Professor > (+34) 646 633 681 > [email protected] > http://xvilajosana.org > http://wine.rdi.uoc.edu > Parc Mediterrani de la Tecnologia > Av Carl Friedrich Gauss 5, B3 Building > 08860 Castelldefels (Barcelona). Catalonia. Spain >
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