Hi, Am 12.05.2015 08:08 schrieb "Oleg Hahm" <oliver.h...@inria.fr>: > > Hi Daniel! > > > >Is this not a requirement of the routing? > > Did you have a look at the IEEE 802.15.4 specification? It's assumed to have > > a so called PAN coordinator that forces the network to a star topology. It's > > extendable to a tree of stars, but still you need a PAN coordinator in every > > region. This node is the mentioned single point of failure and additionally > > has increased energy consumption. > > > > This is exactly what I don't want. > > PAN coordinators are only required for the beacon enabled mode in IEEE > 802.15.4. 6LoWPAN, for instance, does not require this mode (I'm not even sure > if it is supported by the spec) and thus, there is no need for a PAN > coordinator or star topology.
I'm not 100% sure, since I'm not THAT knowledgeable in terms of IEEE 802.15.4, but isn't that what 6LoWPAN's mesh-under mode [1] is for? All we need to do to support this mode is to implement support for 6LoWPAN's Mesh [2] and Broadcast [3] headers. Cheers, Martine [1] https://tools.ietf.org/html/rfc4944#section-11 [2] https://tools.ietf.org/html/rfc4944#section-5.2 [3] https://tools.ietf.org/html/rfc4944#section-11.1
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