Hi LoWPANners, Me and other colleagues here at UPC believe that DAD is necessary in many contexts, specially, given the counterfeiting and manufacturing error phenomena that may occur.
We also believe that the whiteboard mechanism is a nice solution that makes DAD possible in a very appropriate way. In addition, the whiteboard offers other interesting features (e.g. support for node location and mobility in extended lowpans). That being said, it is also true that there may be some particular scenarios where DAD may not be required (or could be performed in other ways). Then, the whiteboard mechanism could be made optional. But if interoperability cannot be assured in that case, then we would support the whiteboard mechanism being a MUST. Thanks, Carles > I agree with the recent proposal to remove the mandatory requirement for > a whiteboard and duplicate address detection. > > However, 16 bit 802.15.4 addresses are a very useful optimisation. > Assigning these in a standard way is important in the absence of a > whiteboard. One option may be to use DHCPv6. However, the DHCPv6 > packet sizes are quite large and so some sort of DHCPv6 message > compression would be useful. Extended LowPANs would also be useful in > some applications. > > If the whiteboard and DAD are removed, I would like the issues of 16 bit > address assignment and extended LowPANs to still be addressed by an RFC > within the IETF 6LowPAN group, rather than having several different non > interoperable implementations. > > > -- > __________________________________________________ > Daniel Gavelle, Software Engineer > Tel: +44 114 281 2655 > Fax: +44 114 281 2951 > Jennic Ltd, Furnival Street, Sheffield, S1 4QT, UK > Comp Reg No: 3191371 Registered In England > http://www.jennic.com > __________________________________________________ > _______________________________________________ > 6lowpan mailing list > [email protected] > https://www.ietf.org/mailman/listinfo/6lowpan > _______________________________________________ 6lowpan mailing list [email protected] https://www.ietf.org/mailman/listinfo/6lowpan
