On 05/ 5/10 10:38 PM, Pascal Thubert (pthubert) wrote:
Hi Carsten:
Fact is, the latest 6LoWPAN ND draft does not support mesh under since
it lost the white board piece.
I think you are mistaken.
Mesh under works with just RFC 2461, since it is the layer 2 mesh that
has to solve all the hard problems, essentially making things look like
an Ethernet to IP.
You might be confusing mesh-under with the notion of having a wired
backbone be part of the lowpan without participating in the lowpan
routing protocols. While I think the best way to handle such physical
topologies is to make the wired backbone be part of the lowpan routing
protocol domain, 6lowpan-nd carries sufficient information in the case
of mesh-under for the 6LBR to track all the IPv6 addresses that are
registered.
It does not support route over either since it is not compatible with
the only route over protocol in existence.
Which RFC contains that 'only protocol'? ;-)
I'm pretty sure I can build a route over solution using RIPv2 or OSPF
which are existing IETF RFCs. It might be far from optimal, but it does
indicate that the separation between the host-to-router interaction and
the router-to-router is in the right place.
Regards,
Erik
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